https://wiki.batc.org.uk/api.php?action=feedcontributions&feedformat=atom&user=G3gja 2026-06-03T09:02:51Z User contributions MediaWiki 1.35.6 https://wiki.batc.org.uk/index.php?title=BATC_Wiki&diff=12139 2026-02-20T14:49:40Z

<p>G3gja: /* Operating */</p> <hr /> <div>'''Welcome to the British Amateur Television Club Wiki''' - the place to find information on all Amateur Television related equipment and projects. For details on how to join the BATC, the member's shop and CQ-TV archive and download visit the BATC website https://batc.org.uk/<br /> <br /> This is your site, developed by the BATC for use by the worldwide ATV community - any information which you feel is of use to others can be put on the Wiki but editing accounts are only available to trusted members. Please get in touch with any member of the BATC Committee if you have something of interest to post. Please do not request an account before contacting a member of the BATC Committee; requests without pre-approval are ignored.<br /> <br /> * New to Amateur TV - Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> * For details on the Portsdown DATV transmit and receive system go to [[The Portsdown DATV transceiver system|the Portsdown pages]]<br /> <br /> * For information on the MiniTiouner USB DATV receiver go to [[MiniTioune|MiniTiouner]]<br /> <br /> * For the DATV equipment capability list go to [[DATV equipment capability|https://wiki.batc.org.uk/DATV_equipment_capability]]<br /> <br /> <br /> == Contents ==<br /> * [[Registering]] on the BATC wiki<br /> <br /> == New to Amateur TV? ==<br /> * Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> ==BATC Information and services==<br /> * [[Joining the BATC]]<br /> <br /> * [[Renewing your membership]]<br /> <br /> * The [[BATC Privacy statement and data protection policy]]<br /> <br /> * The [[BATC forum]]<br /> <br /> * The [[BATC shop]]<br /> <br /> * The [[The_new_streamer|BATC streamer]]<br /> <br /> * The [[BATC archive]] Collection of photos and documents from BATC's past<br /> <br /> * The [[new BATC website|BATC website]]<br /> <br /> == BATC projects ==<br /> * [[The Portsdown Transmitter]] - the BATC's Raspberry Pi-based DATV Transmitter<br /> * [[MiniTioune]] - the DATV DVB-S / S2 receiver project<br /> * [[Ryde Receiver]] - Dedicated DATV set top box project<br /> * [[Knucker]] - Variable bandwidth DVB-T project<br /> * [[Advanced receiver hardware]] - Details of the BATC advanced receiver hardware.<br /> * [[WinterHill Receiver Project]] - Multi-channel DVB-S / S2 project<br /> * [[BATC Video Source]] - The Raspberry Pi-based composite video source described in CQ-TV 270<br /> * [[BATC HDMI Source]] - The Raspberry Pi-based HDMI video source to be described in CQ-TV 280<br /> * [[Digilite]] - The original home build DATV construction project<br /> * [[Repeater Controller]] - The BATC ATV Repeater Controller using a Raspberry Pi 4<br /> * [[ARISS Digital Communication System]]<br /> * [[PicoTuner]] - A USB tuner for DATV using the RpiPico as the USB interface<br /> <br /> == CQ-TV Magazine ==<br /> * [[Index of articles]]<br /> * [[Archive edition|Archive editions]] download<br /> * [[BATC_Software_Library]] for project downloads<br /> <br /> ==BATC Event Streaming Equipment==<br /> * [[Equipment Description]]<br /> <br /> == BATC Conventions ==<br /> <br /> Presentations from previous conventions can be found on this page [[BATC Conventions]]<br /> <br /> ==National and International Events==<br /> <br /> * [[ HAM RADIO 2018 ]] ATV Presentations from HAM RADIO 2018 at Friedrichhsafen.<br /> <br /> * [[ HAM RADIO 2019 ]] ATV Presentations from HAM RADIO 2019 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2022 ]] ATV Presentations from HAM RADIO 2022 at Friedrichshafen.<br /> <br /> * [[ RSGB Convention 2022 ]] ATV Presentation at the 2022 RSGB Convention 2022<br /> <br /> * [[ HAM RADIO 2023 ]] ATV Presentations from HAM RADIO 2023 at Friedrichshafen.<br /> <br /> * [[ EMFcamp 2024 ]] BATC / AMSAT-UK / UKuG demonstration village at EMFcamp 2024.<br /> <br /> * [[ HAM RADIO 2024 ]] ATV Presentations from HAM RADIO 2024 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2025 ]] ATV Presentations from HAM RADIO 2025 at Friedrichshafen.<br /> <br /> ==HAMTV on the ISS==<br /> [[HAMTV from the ISS]]<br /> <br /> == Getting on the air with ATV ==<br /> ===The ATV bands===<br /> * [[29 MHz]]<br /> * [[51 MHz]]<br /> * [[71 MHz]]<br /> * [[146 MHz RB-TV]]<br /> * [[70cms Analogue TV]]<br /> * [[70cm DATV]]<br /> * [[23cms ATV]]<br /> * [[13cms]]<br /> * [[3.4 GHz DATV]]<br /> * [[5.6 GHz]]<br /> * [[10 GHz]]<br /> * [[:Media:ATV on 5.6 10 and 24 Ghz.pdf|April 2018 Presentation to MMRT about ATV on 5.6 10 and 24 GHz]]<br /> <br /> ===The different ATV modes===<br /> * [[Reduced bandwidth TV]] (RB-TV)<br /> * [[The Effect of FEC]]<br /> <br /> ===Equipment Options===<br /> * [[DATV transmitting Equipment]]<br /> <br /> ==Advanced encoding / input options==<br /> <br /> Details of advanced transmission configurations, primarily for H265,and video production software.<br /> <br /> * [[Feeding Video to Portsdown from vMix|Vmix output in to Portsdown IPTS input]]<br /> * [[OBS - Open Broadcast Studio|OBS output in to Portsdown IPTS input]]<br /> * [[Using GTX10xx Graphics card encoder with OBS]]<br /> * [[Custom_DATV_Firmware_for_the_Pluto|Using the Pluto for DATV]]<br /> * [[Jetson_Nano|Using the Jetson Nano with Portsdown]]<br /> <br /> == Operating ==<br /> * [[DATV equipment capability]] - Wiki page documenting the capabilities of common DATV transmit and receive equipment.<br /> * [[ATV standards]] - a list of standards used by ATV operators including FM bandwidths, DATV PIDs, symbol rates and FEC<br /> * [[EMF Compliance]] - information about EMF compliance for ATV and Microwave Operation<br /> * [[Directory of portable sites]] suitable for ATV and microwave operation<br /> * [https://www.google.com/maps/d/u/0/edit?mid=1VeLnRRbLwloDTL2i9-HE2sxqL0c&amp;ll=52.95536632179757%2C-0.49709419999999227&amp;z=7 Google map] showing possible portable operating sites<br /> * [[Mapping tools]] including finding the QRA locator of a site, UK postcode to Lat and Long conversion and a topographic overlay for Google maps<br /> * [[Propagation tools]]<br /> * [[UK ATV DX Records]] - a list of Known DX Records for the UK<br /> * [[2026 Activity Weekends]]<br /> * [[2026 Activity Ladders]]<br /> * [[Christmas 2025 Repeater Contest &amp; Activity Ladder|Christmas 2025 repeater Contest &amp; Activity Ladder]]<br /> * [[IARU ATV contest]] - How to enter the annual international TV contest<br /> * [[IARU Region 1 ATV Contest 2025 International Results]] - International Results for the June 2025 IARU Contest<br /> <br /> ==ATV repeaters==<br /> * [[ATV Repeater Map]]<br /> * [[UK ATV repeaters]]<br /> * [[USA ATV repeaters]]<br /> * [[Australian TV repeaters]]<br /> <br /> * [[Technical topics for ATV repeater builders]]<br /> <br /> ==Es'hail-2==<br /> * [[Es'hail-2 Basic Information|Getting started, LNBs and aligning a dish]]<br /> <br /> * [[Es'hail-2 Ground Station|Es'hail-2 BATC WebSDR &amp; DATV Spectrum Monitor]]<br /> <br /> * [[Es'hail-2 DATV Bandplan]]<br /> <br /> * [[Es'hail-2_LNBs_and_Antennaes|Es'hail-2_LNBs]]<br /> <br /> * [[Transmitting_Oscar_100_DATV_signals|Es'hail-2 Transmitters]]<br /> <br /> * [[Es'hail-2 Antennaes]]<br /> <br /> * [[Es'hail-2 conference transmissions]]<br /> <br /> <br /> ==ATV projects==<br /> * [[Adalm Pluto]] - Collection of information on using the Adalm Pluto for DATV<br /> * [[The MacGuffin Project]] - Collection of tools used to create an automated multi-band ATV system <br /> * [[Receiver upconverters]] - Details of upconverters to receive 146 and 437 MHz on STB and MiniTioune<br /> * [[Jetson Nano]] - Third generation computer-based DATV Transmitter<br /> * [[DTX1 TS]] - interface board to take in TS streams to the DTX1<br /> * [[RpiDATV]] - software for the Rpi<br /> * [[RBTVMOD]] - variable rate RB-TV mdulator for the Rpi<br /> * [[DATVExpress]] - SDR hardware based DATV transmitter covering 70 - 2450 MHz<br /> * [[PE43703 2025]] - PE43703 variable attenuator project 2025 version<br /> * [[PE4302]] - PE4302 variable attenuator project<br /> * [[ADF435x PIC]] - PIC controllers for Chinese ADF4350/4351 boards<br /> * [[DigiTwist]] - an experimental 2 axis satellite tracker<br /> * [[G4WIM PA controller]] - an advanced PA controller design by G4WIM published in CQ-TV 265<br /> * [[WinterHill Receiver Project]]<br /> * [[Tilt-O-Matic]] Pan and tilt head for surveyor tripods<br /> * [[Gerber Files]] Index of Gerber (PCB) files used by BATC and Members' Projects<br /> <br /> == Deutschsprachiges Wiki ==<br /> <br /> * Portsdown DATV Projekt - Deutschsprachiges Wiki<br /> * Minitioune(r) - Deutschsprachiges Wiki<br /> <br /> == Useful Circuits and notes ==<br /> * [[Antenna changeover relays]] - Notes on suitable antenna change over relays for ATV use.<br /> * [[Filters]] - Collection of links and designs for that most critical but over looked component!<br /> * [[Pre-amps]] - Notes, suppliers and circuits of pre-amplifiers suitable for ATV<br /> * [[Power amplifiers]] - Notes, suppliers and circuits of power amplifiers suitable for ATV<br /> * [[Video circuits]] - Notes and circuits for video processing<br /> * [[Satellite receiver tuning offsets]] - Note on how to set up a satellite receiver to directly receive L band signals.<br /> * [[Using ex-satellite dishes]] - Notes on how to find the feed point of a dish and designs for feeds to use<br /> <br /> == ATV Equipment manuals and schematics ==<br /> * [[Bob Platts G8OZP]] Circuits and documentation for the Bob Platts range of equipment<br /> * [[Comtech module]] - 23cms and 13cms ATV Tx and Rx circuits and guides<br /> * [[Solent ATV units]] - Tx and Rx circuits and information<br /> * [[Wood &amp; Douglas FM TV equipment]] - Circuits, pcb layouts and information<br /> * [[LMW Electronics]] - Circuits, pcb layouts and information<br /> * [[Fortop]] - Circuits, pcb layouts and information<br /> * [[Glencom]] - VC-510 VHF to L band up converter circuit diagram and modifications<br /> * [[Global communications]] - Hand drawn circuit of tuneable 70 / 140 MHz to L band block up converter<br /> * [[Jaybeam]] - Details of many Jaybeam aerials<br /> <br /> == Ex commercial broadcast equipment manuals ==<br /> * [[NDS System 3000]]<br /> * [[NDS Alteia rx]]<br /> <br /> == Test equipment Information ==<br /> For HP and Agilent equipment see the io group discussion at [https://groups.io/g/HP-Agilent-Keysight-equipment]<br /> <br /> == Other equipment information related to ATV ==</div>

G3gja https://wiki.batc.org.uk/index.php?title=IARU_Region_1_ATV_Contest_2025_International_Results&diff=12138 2026-02-20T14:47:54Z

<p>G3gja: Created page with &quot;The 2025 IARU International ATV Contest final results can be downloaded from here: File:IARU_Region_1_ATV_Contest_2025_Final_Results.pdf&quot;</p> <hr /> <div>The 2025 IARU International ATV Contest final results can be downloaded from here: [[File:IARU_Region_1_ATV_Contest_2025_Final_Results.pdf]]</div>

G3gja https://wiki.batc.org.uk/index.php?title=BATC_Wiki&diff=12137 2026-02-20T14:47:40Z

<p>G3gja: /* Operating */</p> <hr /> <div>'''Welcome to the British Amateur Television Club Wiki''' - the place to find information on all Amateur Television related equipment and projects. For details on how to join the BATC, the member's shop and CQ-TV archive and download visit the BATC website https://batc.org.uk/<br /> <br /> This is your site, developed by the BATC for use by the worldwide ATV community - any information which you feel is of use to others can be put on the Wiki but editing accounts are only available to trusted members. Please get in touch with any member of the BATC Committee if you have something of interest to post. Please do not request an account before contacting a member of the BATC Committee; requests without pre-approval are ignored.<br /> <br /> * New to Amateur TV - Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> * For details on the Portsdown DATV transmit and receive system go to [[The Portsdown DATV transceiver system|the Portsdown pages]]<br /> <br /> * For information on the MiniTiouner USB DATV receiver go to [[MiniTioune|MiniTiouner]]<br /> <br /> * For the DATV equipment capability list go to [[DATV equipment capability|https://wiki.batc.org.uk/DATV_equipment_capability]]<br /> <br /> <br /> == Contents ==<br /> * [[Registering]] on the BATC wiki<br /> <br /> == New to Amateur TV? ==<br /> * Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> ==BATC Information and services==<br /> * [[Joining the BATC]]<br /> <br /> * [[Renewing your membership]]<br /> <br /> * The [[BATC Privacy statement and data protection policy]]<br /> <br /> * The [[BATC forum]]<br /> <br /> * The [[BATC shop]]<br /> <br /> * The [[The_new_streamer|BATC streamer]]<br /> <br /> * The [[BATC archive]] Collection of photos and documents from BATC's past<br /> <br /> * The [[new BATC website|BATC website]]<br /> <br /> == BATC projects ==<br /> * [[The Portsdown Transmitter]] - the BATC's Raspberry Pi-based DATV Transmitter<br /> * [[MiniTioune]] - the DATV DVB-S / S2 receiver project<br /> * [[Ryde Receiver]] - Dedicated DATV set top box project<br /> * [[Knucker]] - Variable bandwidth DVB-T project<br /> * [[Advanced receiver hardware]] - Details of the BATC advanced receiver hardware.<br /> * [[WinterHill Receiver Project]] - Multi-channel DVB-S / S2 project<br /> * [[BATC Video Source]] - The Raspberry Pi-based composite video source described in CQ-TV 270<br /> * [[BATC HDMI Source]] - The Raspberry Pi-based HDMI video source to be described in CQ-TV 280<br /> * [[Digilite]] - The original home build DATV construction project<br /> * [[Repeater Controller]] - The BATC ATV Repeater Controller using a Raspberry Pi 4<br /> * [[ARISS Digital Communication System]]<br /> * [[PicoTuner]] - A USB tuner for DATV using the RpiPico as the USB interface<br /> <br /> == CQ-TV Magazine ==<br /> * [[Index of articles]]<br /> * [[Archive edition|Archive editions]] download<br /> * [[BATC_Software_Library]] for project downloads<br /> <br /> ==BATC Event Streaming Equipment==<br /> * [[Equipment Description]]<br /> <br /> == BATC Conventions ==<br /> <br /> Presentations from previous conventions can be found on this page [[BATC Conventions]]<br /> <br /> ==National and International Events==<br /> <br /> * [[ HAM RADIO 2018 ]] ATV Presentations from HAM RADIO 2018 at Friedrichhsafen.<br /> <br /> * [[ HAM RADIO 2019 ]] ATV Presentations from HAM RADIO 2019 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2022 ]] ATV Presentations from HAM RADIO 2022 at Friedrichshafen.<br /> <br /> * [[ RSGB Convention 2022 ]] ATV Presentation at the 2022 RSGB Convention 2022<br /> <br /> * [[ HAM RADIO 2023 ]] ATV Presentations from HAM RADIO 2023 at Friedrichshafen.<br /> <br /> * [[ EMFcamp 2024 ]] BATC / AMSAT-UK / UKuG demonstration village at EMFcamp 2024.<br /> <br /> * [[ HAM RADIO 2024 ]] ATV Presentations from HAM RADIO 2024 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2025 ]] ATV Presentations from HAM RADIO 2025 at Friedrichshafen.<br /> <br /> ==HAMTV on the ISS==<br /> [[HAMTV from the ISS]]<br /> <br /> == Getting on the air with ATV ==<br /> ===The ATV bands===<br /> * [[29 MHz]]<br /> * [[51 MHz]]<br /> * [[71 MHz]]<br /> * [[146 MHz RB-TV]]<br /> * [[70cms Analogue TV]]<br /> * [[70cm DATV]]<br /> * [[23cms ATV]]<br /> * [[13cms]]<br /> * [[3.4 GHz DATV]]<br /> * [[5.6 GHz]]<br /> * [[10 GHz]]<br /> * [[:Media:ATV on 5.6 10 and 24 Ghz.pdf|April 2018 Presentation to MMRT about ATV on 5.6 10 and 24 GHz]]<br /> <br /> ===The different ATV modes===<br /> * [[Reduced bandwidth TV]] (RB-TV)<br /> * [[The Effect of FEC]]<br /> <br /> ===Equipment Options===<br /> * [[DATV transmitting Equipment]]<br /> <br /> ==Advanced encoding / input options==<br /> <br /> Details of advanced transmission configurations, primarily for H265,and video production software.<br /> <br /> * [[Feeding Video to Portsdown from vMix|Vmix output in to Portsdown IPTS input]]<br /> * [[OBS - Open Broadcast Studio|OBS output in to Portsdown IPTS input]]<br /> * [[Using GTX10xx Graphics card encoder with OBS]]<br /> * [[Custom_DATV_Firmware_for_the_Pluto|Using the Pluto for DATV]]<br /> * [[Jetson_Nano|Using the Jetson Nano with Portsdown]]<br /> <br /> == Operating ==<br /> * [[DATV equipment capability]] - Wiki page documenting the capabilities of common DATV transmit and receive equipment.<br /> * [[ATV standards]] - a list of standards used by ATV operators including FM bandwidths, DATV PIDs, symbol rates and FEC<br /> * [[EMF Compliance]] - information about EMF compliance for ATV and Microwave Operation<br /> * [[Directory of portable sites]] suitable for ATV and microwave operation<br /> * [https://www.google.com/maps/d/u/0/edit?mid=1VeLnRRbLwloDTL2i9-HE2sxqL0c&amp;ll=52.95536632179757%2C-0.49709419999999227&amp;z=7 Google map] showing possible portable operating sites<br /> * [[Mapping tools]] including finding the QRA locator of a site, UK postcode to Lat and Long conversion and a topographic overlay for Google maps<br /> * [[Propagation tools]]<br /> * [[UK ATV DX Records]] - a list of Known DX Records for the UK<br /> * [[2026 Activity Weekends]]<br /> * [[Christmas 2025 Repeater Contest &amp; Activity Ladder|Christmas 2025 repeater Contest &amp; Activity Ladder]]<br /> * [[2026 Activity Ladders]]<br /> * [[IARU ATV contest]] - How to enter the annual international TV contest<br /> * [[IARU Region 1 ATV Contest 2025 International Results]] - International Results for the June 2025 IARU Contest<br /> <br /> ==ATV repeaters==<br /> * [[ATV Repeater Map]]<br /> * [[UK ATV repeaters]]<br /> * [[USA ATV repeaters]]<br /> * [[Australian TV repeaters]]<br /> <br /> * [[Technical topics for ATV repeater builders]]<br /> <br /> ==Es'hail-2==<br /> * [[Es'hail-2 Basic Information|Getting started, LNBs and aligning a dish]]<br /> <br /> * [[Es'hail-2 Ground Station|Es'hail-2 BATC WebSDR &amp; DATV Spectrum Monitor]]<br /> <br /> * [[Es'hail-2 DATV Bandplan]]<br /> <br /> * [[Es'hail-2_LNBs_and_Antennaes|Es'hail-2_LNBs]]<br /> <br /> * [[Transmitting_Oscar_100_DATV_signals|Es'hail-2 Transmitters]]<br /> <br /> * [[Es'hail-2 Antennaes]]<br /> <br /> * [[Es'hail-2 conference transmissions]]<br /> <br /> <br /> ==ATV projects==<br /> * [[Adalm Pluto]] - Collection of information on using the Adalm Pluto for DATV<br /> * [[The MacGuffin Project]] - Collection of tools used to create an automated multi-band ATV system <br /> * [[Receiver upconverters]] - Details of upconverters to receive 146 and 437 MHz on STB and MiniTioune<br /> * [[Jetson Nano]] - Third generation computer-based DATV Transmitter<br /> * [[DTX1 TS]] - interface board to take in TS streams to the DTX1<br /> * [[RpiDATV]] - software for the Rpi<br /> * [[RBTVMOD]] - variable rate RB-TV mdulator for the Rpi<br /> * [[DATVExpress]] - SDR hardware based DATV transmitter covering 70 - 2450 MHz<br /> * [[PE43703 2025]] - PE43703 variable attenuator project 2025 version<br /> * [[PE4302]] - PE4302 variable attenuator project<br /> * [[ADF435x PIC]] - PIC controllers for Chinese ADF4350/4351 boards<br /> * [[DigiTwist]] - an experimental 2 axis satellite tracker<br /> * [[G4WIM PA controller]] - an advanced PA controller design by G4WIM published in CQ-TV 265<br /> * [[WinterHill Receiver Project]]<br /> * [[Tilt-O-Matic]] Pan and tilt head for surveyor tripods<br /> * [[Gerber Files]] Index of Gerber (PCB) files used by BATC and Members' Projects<br /> <br /> == Deutschsprachiges Wiki ==<br /> <br /> * Portsdown DATV Projekt - Deutschsprachiges Wiki<br /> * Minitioune(r) - Deutschsprachiges Wiki<br /> <br /> == Useful Circuits and notes ==<br /> * [[Antenna changeover relays]] - Notes on suitable antenna change over relays for ATV use.<br /> * [[Filters]] - Collection of links and designs for that most critical but over looked component!<br /> * [[Pre-amps]] - Notes, suppliers and circuits of pre-amplifiers suitable for ATV<br /> * [[Power amplifiers]] - Notes, suppliers and circuits of power amplifiers suitable for ATV<br /> * [[Video circuits]] - Notes and circuits for video processing<br /> * [[Satellite receiver tuning offsets]] - Note on how to set up a satellite receiver to directly receive L band signals.<br /> * [[Using ex-satellite dishes]] - Notes on how to find the feed point of a dish and designs for feeds to use<br /> <br /> == ATV Equipment manuals and schematics ==<br /> * [[Bob Platts G8OZP]] Circuits and documentation for the Bob Platts range of equipment<br /> * [[Comtech module]] - 23cms and 13cms ATV Tx and Rx circuits and guides<br /> * [[Solent ATV units]] - Tx and Rx circuits and information<br /> * [[Wood &amp; Douglas FM TV equipment]] - Circuits, pcb layouts and information<br /> * [[LMW Electronics]] - Circuits, pcb layouts and information<br /> * [[Fortop]] - Circuits, pcb layouts and information<br /> * [[Glencom]] - VC-510 VHF to L band up converter circuit diagram and modifications<br /> * [[Global communications]] - Hand drawn circuit of tuneable 70 / 140 MHz to L band block up converter<br /> * [[Jaybeam]] - Details of many Jaybeam aerials<br /> <br /> == Ex commercial broadcast equipment manuals ==<br /> * [[NDS System 3000]]<br /> * [[NDS Alteia rx]]<br /> <br /> == Test equipment Information ==<br /> For HP and Agilent equipment see the io group discussion at [https://groups.io/g/HP-Agilent-Keysight-equipment]<br /> <br /> == Other equipment information related to ATV ==</div>

G3gja https://wiki.batc.org.uk/index.php?title=BATC_Wiki&diff=12136 2026-02-20T14:45:49Z

<p>G3gja: /* Operating */</p> <hr /> <div>'''Welcome to the British Amateur Television Club Wiki''' - the place to find information on all Amateur Television related equipment and projects. For details on how to join the BATC, the member's shop and CQ-TV archive and download visit the BATC website https://batc.org.uk/<br /> <br /> This is your site, developed by the BATC for use by the worldwide ATV community - any information which you feel is of use to others can be put on the Wiki but editing accounts are only available to trusted members. Please get in touch with any member of the BATC Committee if you have something of interest to post. Please do not request an account before contacting a member of the BATC Committee; requests without pre-approval are ignored.<br /> <br /> * New to Amateur TV - Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> * For details on the Portsdown DATV transmit and receive system go to [[The Portsdown DATV transceiver system|the Portsdown pages]]<br /> <br /> * For information on the MiniTiouner USB DATV receiver go to [[MiniTioune|MiniTiouner]]<br /> <br /> * For the DATV equipment capability list go to [[DATV equipment capability|https://wiki.batc.org.uk/DATV_equipment_capability]]<br /> <br /> <br /> == Contents ==<br /> * [[Registering]] on the BATC wiki<br /> <br /> == New to Amateur TV? ==<br /> * Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> ==BATC Information and services==<br /> * [[Joining the BATC]]<br /> <br /> * [[Renewing your membership]]<br /> <br /> * The [[BATC Privacy statement and data protection policy]]<br /> <br /> * The [[BATC forum]]<br /> <br /> * The [[BATC shop]]<br /> <br /> * The [[The_new_streamer|BATC streamer]]<br /> <br /> * The [[BATC archive]] Collection of photos and documents from BATC's past<br /> <br /> * The [[new BATC website|BATC website]]<br /> <br /> == BATC projects ==<br /> * [[The Portsdown Transmitter]] - the BATC's Raspberry Pi-based DATV Transmitter<br /> * [[MiniTioune]] - the DATV DVB-S / S2 receiver project<br /> * [[Ryde Receiver]] - Dedicated DATV set top box project<br /> * [[Knucker]] - Variable bandwidth DVB-T project<br /> * [[Advanced receiver hardware]] - Details of the BATC advanced receiver hardware.<br /> * [[WinterHill Receiver Project]] - Multi-channel DVB-S / S2 project<br /> * [[BATC Video Source]] - The Raspberry Pi-based composite video source described in CQ-TV 270<br /> * [[BATC HDMI Source]] - The Raspberry Pi-based HDMI video source to be described in CQ-TV 280<br /> * [[Digilite]] - The original home build DATV construction project<br /> * [[Repeater Controller]] - The BATC ATV Repeater Controller using a Raspberry Pi 4<br /> * [[ARISS Digital Communication System]]<br /> * [[PicoTuner]] - A USB tuner for DATV using the RpiPico as the USB interface<br /> <br /> == CQ-TV Magazine ==<br /> * [[Index of articles]]<br /> * [[Archive edition|Archive editions]] download<br /> * [[BATC_Software_Library]] for project downloads<br /> <br /> ==BATC Event Streaming Equipment==<br /> * [[Equipment Description]]<br /> <br /> == BATC Conventions ==<br /> <br /> Presentations from previous conventions can be found on this page [[BATC Conventions]]<br /> <br /> ==National and International Events==<br /> <br /> * [[ HAM RADIO 2018 ]] ATV Presentations from HAM RADIO 2018 at Friedrichhsafen.<br /> <br /> * [[ HAM RADIO 2019 ]] ATV Presentations from HAM RADIO 2019 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2022 ]] ATV Presentations from HAM RADIO 2022 at Friedrichshafen.<br /> <br /> * [[ RSGB Convention 2022 ]] ATV Presentation at the 2022 RSGB Convention 2022<br /> <br /> * [[ HAM RADIO 2023 ]] ATV Presentations from HAM RADIO 2023 at Friedrichshafen.<br /> <br /> * [[ EMFcamp 2024 ]] BATC / AMSAT-UK / UKuG demonstration village at EMFcamp 2024.<br /> <br /> * [[ HAM RADIO 2024 ]] ATV Presentations from HAM RADIO 2024 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2025 ]] ATV Presentations from HAM RADIO 2025 at Friedrichshafen.<br /> <br /> ==HAMTV on the ISS==<br /> [[HAMTV from the ISS]]<br /> <br /> == Getting on the air with ATV ==<br /> ===The ATV bands===<br /> * [[29 MHz]]<br /> * [[51 MHz]]<br /> * [[71 MHz]]<br /> * [[146 MHz RB-TV]]<br /> * [[70cms Analogue TV]]<br /> * [[70cm DATV]]<br /> * [[23cms ATV]]<br /> * [[13cms]]<br /> * [[3.4 GHz DATV]]<br /> * [[5.6 GHz]]<br /> * [[10 GHz]]<br /> * [[:Media:ATV on 5.6 10 and 24 Ghz.pdf|April 2018 Presentation to MMRT about ATV on 5.6 10 and 24 GHz]]<br /> <br /> ===The different ATV modes===<br /> * [[Reduced bandwidth TV]] (RB-TV)<br /> * [[The Effect of FEC]]<br /> <br /> ===Equipment Options===<br /> * [[DATV transmitting Equipment]]<br /> <br /> ==Advanced encoding / input options==<br /> <br /> Details of advanced transmission configurations, primarily for H265,and video production software.<br /> <br /> * [[Feeding Video to Portsdown from vMix|Vmix output in to Portsdown IPTS input]]<br /> * [[OBS - Open Broadcast Studio|OBS output in to Portsdown IPTS input]]<br /> * [[Using GTX10xx Graphics card encoder with OBS]]<br /> * [[Custom_DATV_Firmware_for_the_Pluto|Using the Pluto for DATV]]<br /> * [[Jetson_Nano|Using the Jetson Nano with Portsdown]]<br /> <br /> == Operating ==<br /> * [[DATV equipment capability]] - Wiki page documenting the capabilities of common DATV transmit and receive equipment.<br /> * [[ATV standards]] - a list of standards used by ATV operators including FM bandwidths, DATV PIDs, symbol rates and FEC<br /> * [[EMF Compliance]] - information about EMF compliance for ATV and Microwave Operation<br /> * [[Directory of portable sites]] suitable for ATV and microwave operation<br /> * [https://www.google.com/maps/d/u/0/edit?mid=1VeLnRRbLwloDTL2i9-HE2sxqL0c&amp;ll=52.95536632179757%2C-0.49709419999999227&amp;z=7 Google map] showing possible portable operating sites<br /> * [[Mapping tools]] including finding the QRA locator of a site, UK postcode to Lat and Long conversion and a topographic overlay for Google maps<br /> * [[Propagation tools]]<br /> * [[UK ATV DX Records]] - a list of Known DX Records for the UK<br /> * [[2026 Activity Weekends]]<br /> * [[Christmas 2025 Repeater Contest &amp; Activity Ladder|Christmas 2025 repeater Contest &amp; Activity Ladder]]<br /> * [[2026 Activity Ladders]]<br /> * [[IARU ATV contest]] - How to enter the annual international TV contest<br /> * [[IARU ATV Contest 2025 International Results]] - International Results for the June 2025 IARU Contest<br /> <br /> ==ATV repeaters==<br /> * [[ATV Repeater Map]]<br /> * [[UK ATV repeaters]]<br /> * [[USA ATV repeaters]]<br /> * [[Australian TV repeaters]]<br /> <br /> * [[Technical topics for ATV repeater builders]]<br /> <br /> ==Es'hail-2==<br /> * [[Es'hail-2 Basic Information|Getting started, LNBs and aligning a dish]]<br /> <br /> * [[Es'hail-2 Ground Station|Es'hail-2 BATC WebSDR &amp; DATV Spectrum Monitor]]<br /> <br /> * [[Es'hail-2 DATV Bandplan]]<br /> <br /> * [[Es'hail-2_LNBs_and_Antennaes|Es'hail-2_LNBs]]<br /> <br /> * [[Transmitting_Oscar_100_DATV_signals|Es'hail-2 Transmitters]]<br /> <br /> * [[Es'hail-2 Antennaes]]<br /> <br /> * [[Es'hail-2 conference transmissions]]<br /> <br /> <br /> ==ATV projects==<br /> * [[Adalm Pluto]] - Collection of information on using the Adalm Pluto for DATV<br /> * [[The MacGuffin Project]] - Collection of tools used to create an automated multi-band ATV system <br /> * [[Receiver upconverters]] - Details of upconverters to receive 146 and 437 MHz on STB and MiniTioune<br /> * [[Jetson Nano]] - Third generation computer-based DATV Transmitter<br /> * [[DTX1 TS]] - interface board to take in TS streams to the DTX1<br /> * [[RpiDATV]] - software for the Rpi<br /> * [[RBTVMOD]] - variable rate RB-TV mdulator for the Rpi<br /> * [[DATVExpress]] - SDR hardware based DATV transmitter covering 70 - 2450 MHz<br /> * [[PE43703 2025]] - PE43703 variable attenuator project 2025 version<br /> * [[PE4302]] - PE4302 variable attenuator project<br /> * [[ADF435x PIC]] - PIC controllers for Chinese ADF4350/4351 boards<br /> * [[DigiTwist]] - an experimental 2 axis satellite tracker<br /> * [[G4WIM PA controller]] - an advanced PA controller design by G4WIM published in CQ-TV 265<br /> * [[WinterHill Receiver Project]]<br /> * [[Tilt-O-Matic]] Pan and tilt head for surveyor tripods<br /> * [[Gerber Files]] Index of Gerber (PCB) files used by BATC and Members' Projects<br /> <br /> == Deutschsprachiges Wiki ==<br /> <br /> * Portsdown DATV Projekt - Deutschsprachiges Wiki<br /> * Minitioune(r) - Deutschsprachiges Wiki<br /> <br /> == Useful Circuits and notes ==<br /> * [[Antenna changeover relays]] - Notes on suitable antenna change over relays for ATV use.<br /> * [[Filters]] - Collection of links and designs for that most critical but over looked component!<br /> * [[Pre-amps]] - Notes, suppliers and circuits of pre-amplifiers suitable for ATV<br /> * [[Power amplifiers]] - Notes, suppliers and circuits of power amplifiers suitable for ATV<br /> * [[Video circuits]] - Notes and circuits for video processing<br /> * [[Satellite receiver tuning offsets]] - Note on how to set up a satellite receiver to directly receive L band signals.<br /> * [[Using ex-satellite dishes]] - Notes on how to find the feed point of a dish and designs for feeds to use<br /> <br /> == ATV Equipment manuals and schematics ==<br /> * [[Bob Platts G8OZP]] Circuits and documentation for the Bob Platts range of equipment<br /> * [[Comtech module]] - 23cms and 13cms ATV Tx and Rx circuits and guides<br /> * [[Solent ATV units]] - Tx and Rx circuits and information<br /> * [[Wood &amp; Douglas FM TV equipment]] - Circuits, pcb layouts and information<br /> * [[LMW Electronics]] - Circuits, pcb layouts and information<br /> * [[Fortop]] - Circuits, pcb layouts and information<br /> * [[Glencom]] - VC-510 VHF to L band up converter circuit diagram and modifications<br /> * [[Global communications]] - Hand drawn circuit of tuneable 70 / 140 MHz to L band block up converter<br /> * [[Jaybeam]] - Details of many Jaybeam aerials<br /> <br /> == Ex commercial broadcast equipment manuals ==<br /> * [[NDS System 3000]]<br /> * [[NDS Alteia rx]]<br /> <br /> == Test equipment Information ==<br /> For HP and Agilent equipment see the io group discussion at [https://groups.io/g/HP-Agilent-Keysight-equipment]<br /> <br /> == Other equipment information related to ATV ==</div>

G3gja https://wiki.batc.org.uk/index.php?title=BATC_Wiki&diff=12135 2026-02-20T14:44:16Z

<p>G3gja: /* Operating */</p> <hr /> <div>'''Welcome to the British Amateur Television Club Wiki''' - the place to find information on all Amateur Television related equipment and projects. For details on how to join the BATC, the member's shop and CQ-TV archive and download visit the BATC website https://batc.org.uk/<br /> <br /> This is your site, developed by the BATC for use by the worldwide ATV community - any information which you feel is of use to others can be put on the Wiki but editing accounts are only available to trusted members. Please get in touch with any member of the BATC Committee if you have something of interest to post. Please do not request an account before contacting a member of the BATC Committee; requests without pre-approval are ignored.<br /> <br /> * New to Amateur TV - Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> * For details on the Portsdown DATV transmit and receive system go to [[The Portsdown DATV transceiver system|the Portsdown pages]]<br /> <br /> * For information on the MiniTiouner USB DATV receiver go to [[MiniTioune|MiniTiouner]]<br /> <br /> * For the DATV equipment capability list go to [[DATV equipment capability|https://wiki.batc.org.uk/DATV_equipment_capability]]<br /> <br /> <br /> == Contents ==<br /> * [[Registering]] on the BATC wiki<br /> <br /> == New to Amateur TV? ==<br /> * Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> ==BATC Information and services==<br /> * [[Joining the BATC]]<br /> <br /> * [[Renewing your membership]]<br /> <br /> * The [[BATC Privacy statement and data protection policy]]<br /> <br /> * The [[BATC forum]]<br /> <br /> * The [[BATC shop]]<br /> <br /> * The [[The_new_streamer|BATC streamer]]<br /> <br /> * The [[BATC archive]] Collection of photos and documents from BATC's past<br /> <br /> * The [[new BATC website|BATC website]]<br /> <br /> == BATC projects ==<br /> * [[The Portsdown Transmitter]] - the BATC's Raspberry Pi-based DATV Transmitter<br /> * [[MiniTioune]] - the DATV DVB-S / S2 receiver project<br /> * [[Ryde Receiver]] - Dedicated DATV set top box project<br /> * [[Knucker]] - Variable bandwidth DVB-T project<br /> * [[Advanced receiver hardware]] - Details of the BATC advanced receiver hardware.<br /> * [[WinterHill Receiver Project]] - Multi-channel DVB-S / S2 project<br /> * [[BATC Video Source]] - The Raspberry Pi-based composite video source described in CQ-TV 270<br /> * [[BATC HDMI Source]] - The Raspberry Pi-based HDMI video source to be described in CQ-TV 280<br /> * [[Digilite]] - The original home build DATV construction project<br /> * [[Repeater Controller]] - The BATC ATV Repeater Controller using a Raspberry Pi 4<br /> * [[ARISS Digital Communication System]]<br /> * [[PicoTuner]] - A USB tuner for DATV using the RpiPico as the USB interface<br /> <br /> == CQ-TV Magazine ==<br /> * [[Index of articles]]<br /> * [[Archive edition|Archive editions]] download<br /> * [[BATC_Software_Library]] for project downloads<br /> <br /> ==BATC Event Streaming Equipment==<br /> * [[Equipment Description]]<br /> <br /> == BATC Conventions ==<br /> <br /> Presentations from previous conventions can be found on this page [[BATC Conventions]]<br /> <br /> ==National and International Events==<br /> <br /> * [[ HAM RADIO 2018 ]] ATV Presentations from HAM RADIO 2018 at Friedrichhsafen.<br /> <br /> * [[ HAM RADIO 2019 ]] ATV Presentations from HAM RADIO 2019 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2022 ]] ATV Presentations from HAM RADIO 2022 at Friedrichshafen.<br /> <br /> * [[ RSGB Convention 2022 ]] ATV Presentation at the 2022 RSGB Convention 2022<br /> <br /> * [[ HAM RADIO 2023 ]] ATV Presentations from HAM RADIO 2023 at Friedrichshafen.<br /> <br /> * [[ EMFcamp 2024 ]] BATC / AMSAT-UK / UKuG demonstration village at EMFcamp 2024.<br /> <br /> * [[ HAM RADIO 2024 ]] ATV Presentations from HAM RADIO 2024 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2025 ]] ATV Presentations from HAM RADIO 2025 at Friedrichshafen.<br /> <br /> ==HAMTV on the ISS==<br /> [[HAMTV from the ISS]]<br /> <br /> == Getting on the air with ATV ==<br /> ===The ATV bands===<br /> * [[29 MHz]]<br /> * [[51 MHz]]<br /> * [[71 MHz]]<br /> * [[146 MHz RB-TV]]<br /> * [[70cms Analogue TV]]<br /> * [[70cm DATV]]<br /> * [[23cms ATV]]<br /> * [[13cms]]<br /> * [[3.4 GHz DATV]]<br /> * [[5.6 GHz]]<br /> * [[10 GHz]]<br /> * [[:Media:ATV on 5.6 10 and 24 Ghz.pdf|April 2018 Presentation to MMRT about ATV on 5.6 10 and 24 GHz]]<br /> <br /> ===The different ATV modes===<br /> * [[Reduced bandwidth TV]] (RB-TV)<br /> * [[The Effect of FEC]]<br /> <br /> ===Equipment Options===<br /> * [[DATV transmitting Equipment]]<br /> <br /> ==Advanced encoding / input options==<br /> <br /> Details of advanced transmission configurations, primarily for H265,and video production software.<br /> <br /> * [[Feeding Video to Portsdown from vMix|Vmix output in to Portsdown IPTS input]]<br /> * [[OBS - Open Broadcast Studio|OBS output in to Portsdown IPTS input]]<br /> * [[Using GTX10xx Graphics card encoder with OBS]]<br /> * [[Custom_DATV_Firmware_for_the_Pluto|Using the Pluto for DATV]]<br /> * [[Jetson_Nano|Using the Jetson Nano with Portsdown]]<br /> <br /> == Operating ==<br /> * [[DATV equipment capability]] - Wiki page documenting the capabilities of common DATV transmit and receive equipment.<br /> * [[ATV standards]] - a list of standards used by ATV operators including FM bandwidths, DATV PIDs, symbol rates and FEC<br /> * [[EMF Compliance]] - information about EMF compliance for ATV and Microwave Operation<br /> * [[Directory of portable sites]] suitable for ATV and microwave operation<br /> * [https://www.google.com/maps/d/u/0/edit?mid=1VeLnRRbLwloDTL2i9-HE2sxqL0c&amp;ll=52.95536632179757%2C-0.49709419999999227&amp;z=7 Google map] showing possible portable operating sites<br /> * [[Mapping tools]] including finding the QRA locator of a site, UK postcode to Lat and Long conversion and a topographic overlay for Google maps<br /> * [[Propagation tools]]<br /> * [[UK ATV DX Records]] - a list of Known DX Records for the UK<br /> * [[2026 Activity Weekends]]<br /> * [[Christmas 2025 Repeater Contest &amp; Activity Ladder|Christmas 2025 repeater Contest &amp; Activity Ladder]]<br /> * [[2026 Activity Ladders]]<br /> * [[IARU ATV contest]] - How to enter the annual international TV contest<br /> * [[IARU Region 1 ATV Contest 2025 International Results]] - International Results for the June 2025 IARU Contest<br /> <br /> ==ATV repeaters==<br /> * [[ATV Repeater Map]]<br /> * [[UK ATV repeaters]]<br /> * [[USA ATV repeaters]]<br /> * [[Australian TV repeaters]]<br /> <br /> * [[Technical topics for ATV repeater builders]]<br /> <br /> ==Es'hail-2==<br /> * [[Es'hail-2 Basic Information|Getting started, LNBs and aligning a dish]]<br /> <br /> * [[Es'hail-2 Ground Station|Es'hail-2 BATC WebSDR &amp; DATV Spectrum Monitor]]<br /> <br /> * [[Es'hail-2 DATV Bandplan]]<br /> <br /> * [[Es'hail-2_LNBs_and_Antennaes|Es'hail-2_LNBs]]<br /> <br /> * [[Transmitting_Oscar_100_DATV_signals|Es'hail-2 Transmitters]]<br /> <br /> * [[Es'hail-2 Antennaes]]<br /> <br /> * [[Es'hail-2 conference transmissions]]<br /> <br /> <br /> ==ATV projects==<br /> * [[Adalm Pluto]] - Collection of information on using the Adalm Pluto for DATV<br /> * [[The MacGuffin Project]] - Collection of tools used to create an automated multi-band ATV system <br /> * [[Receiver upconverters]] - Details of upconverters to receive 146 and 437 MHz on STB and MiniTioune<br /> * [[Jetson Nano]] - Third generation computer-based DATV Transmitter<br /> * [[DTX1 TS]] - interface board to take in TS streams to the DTX1<br /> * [[RpiDATV]] - software for the Rpi<br /> * [[RBTVMOD]] - variable rate RB-TV mdulator for the Rpi<br /> * [[DATVExpress]] - SDR hardware based DATV transmitter covering 70 - 2450 MHz<br /> * [[PE43703 2025]] - PE43703 variable attenuator project 2025 version<br /> * [[PE4302]] - PE4302 variable attenuator project<br /> * [[ADF435x PIC]] - PIC controllers for Chinese ADF4350/4351 boards<br /> * [[DigiTwist]] - an experimental 2 axis satellite tracker<br /> * [[G4WIM PA controller]] - an advanced PA controller design by G4WIM published in CQ-TV 265<br /> * [[WinterHill Receiver Project]]<br /> * [[Tilt-O-Matic]] Pan and tilt head for surveyor tripods<br /> * [[Gerber Files]] Index of Gerber (PCB) files used by BATC and Members' Projects<br /> <br /> == Deutschsprachiges Wiki ==<br /> <br /> * Portsdown DATV Projekt - Deutschsprachiges Wiki<br /> * Minitioune(r) - Deutschsprachiges Wiki<br /> <br /> == Useful Circuits and notes ==<br /> * [[Antenna changeover relays]] - Notes on suitable antenna change over relays for ATV use.<br /> * [[Filters]] - Collection of links and designs for that most critical but over looked component!<br /> * [[Pre-amps]] - Notes, suppliers and circuits of pre-amplifiers suitable for ATV<br /> * [[Power amplifiers]] - Notes, suppliers and circuits of power amplifiers suitable for ATV<br /> * [[Video circuits]] - Notes and circuits for video processing<br /> * [[Satellite receiver tuning offsets]] - Note on how to set up a satellite receiver to directly receive L band signals.<br /> * [[Using ex-satellite dishes]] - Notes on how to find the feed point of a dish and designs for feeds to use<br /> <br /> == ATV Equipment manuals and schematics ==<br /> * [[Bob Platts G8OZP]] Circuits and documentation for the Bob Platts range of equipment<br /> * [[Comtech module]] - 23cms and 13cms ATV Tx and Rx circuits and guides<br /> * [[Solent ATV units]] - Tx and Rx circuits and information<br /> * [[Wood &amp; Douglas FM TV equipment]] - Circuits, pcb layouts and information<br /> * [[LMW Electronics]] - Circuits, pcb layouts and information<br /> * [[Fortop]] - Circuits, pcb layouts and information<br /> * [[Glencom]] - VC-510 VHF to L band up converter circuit diagram and modifications<br /> * [[Global communications]] - Hand drawn circuit of tuneable 70 / 140 MHz to L band block up converter<br /> * [[Jaybeam]] - Details of many Jaybeam aerials<br /> <br /> == Ex commercial broadcast equipment manuals ==<br /> * [[NDS System 3000]]<br /> * [[NDS Alteia rx]]<br /> <br /> == Test equipment Information ==<br /> For HP and Agilent equipment see the io group discussion at [https://groups.io/g/HP-Agilent-Keysight-equipment]<br /> <br /> == Other equipment information related to ATV ==</div>

G3gja https://wiki.batc.org.uk/index.php?title=IARU_ATV_contest_2025_International_Results&diff=12134 2026-02-20T14:43:36Z

<p>G3gja: Created page with &quot;The 2025 IARU International ATV Contest final results can be downloaded from here: File:IARU_Region_1_ATV_Contest_2025_Final_Results.pdf&quot;</p> <hr /> <div>The 2025 IARU International ATV Contest final results can be downloaded from here: [[File:IARU_Region_1_ATV_Contest_2025_Final_Results.pdf]]</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:IARU_Region_1_ATV_Contest_2025_Final_Results.pdf&diff=12133 2026-02-20T14:37:46Z

<p>G3gja: File uploaded with MsUpload</p> <hr /> <div>File uploaded with MsUpload</div>

G3gja https://wiki.batc.org.uk/index.php?title=BATC_Wiki&diff=12132 2026-02-20T14:34:31Z

<p>G3gja: /* Operating */</p> <hr /> <div>'''Welcome to the British Amateur Television Club Wiki''' - the place to find information on all Amateur Television related equipment and projects. For details on how to join the BATC, the member's shop and CQ-TV archive and download visit the BATC website https://batc.org.uk/<br /> <br /> This is your site, developed by the BATC for use by the worldwide ATV community - any information which you feel is of use to others can be put on the Wiki but editing accounts are only available to trusted members. Please get in touch with any member of the BATC Committee if you have something of interest to post. Please do not request an account before contacting a member of the BATC Committee; requests without pre-approval are ignored.<br /> <br /> * New to Amateur TV - Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> * For details on the Portsdown DATV transmit and receive system go to [[The Portsdown DATV transceiver system|the Portsdown pages]]<br /> <br /> * For information on the MiniTiouner USB DATV receiver go to [[MiniTioune|MiniTiouner]]<br /> <br /> * For the DATV equipment capability list go to [[DATV equipment capability|https://wiki.batc.org.uk/DATV_equipment_capability]]<br /> <br /> <br /> == Contents ==<br /> * [[Registering]] on the BATC wiki<br /> <br /> == New to Amateur TV? ==<br /> * Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> ==BATC Information and services==<br /> * [[Joining the BATC]]<br /> <br /> * [[Renewing your membership]]<br /> <br /> * The [[BATC Privacy statement and data protection policy]]<br /> <br /> * The [[BATC forum]]<br /> <br /> * The [[BATC shop]]<br /> <br /> * The [[The_new_streamer|BATC streamer]]<br /> <br /> * The [[BATC archive]] Collection of photos and documents from BATC's past<br /> <br /> * The [[new BATC website|BATC website]]<br /> <br /> == BATC projects ==<br /> * [[The Portsdown Transmitter]] - the BATC's Raspberry Pi-based DATV Transmitter<br /> * [[MiniTioune]] - the DATV DVB-S / S2 receiver project<br /> * [[Ryde Receiver]] - Dedicated DATV set top box project<br /> * [[Knucker]] - Variable bandwidth DVB-T project<br /> * [[Advanced receiver hardware]] - Details of the BATC advanced receiver hardware.<br /> * [[WinterHill Receiver Project]] - Multi-channel DVB-S / S2 project<br /> * [[BATC Video Source]] - The Raspberry Pi-based composite video source described in CQ-TV 270<br /> * [[BATC HDMI Source]] - The Raspberry Pi-based HDMI video source to be described in CQ-TV 280<br /> * [[Digilite]] - The original home build DATV construction project<br /> * [[Repeater Controller]] - The BATC ATV Repeater Controller using a Raspberry Pi 4<br /> * [[ARISS Digital Communication System]]<br /> * [[PicoTuner]] - A USB tuner for DATV using the RpiPico as the USB interface<br /> <br /> == CQ-TV Magazine ==<br /> * [[Index of articles]]<br /> * [[Archive edition|Archive editions]] download<br /> * [[BATC_Software_Library]] for project downloads<br /> <br /> ==BATC Event Streaming Equipment==<br /> * [[Equipment Description]]<br /> <br /> == BATC Conventions ==<br /> <br /> Presentations from previous conventions can be found on this page [[BATC Conventions]]<br /> <br /> ==National and International Events==<br /> <br /> * [[ HAM RADIO 2018 ]] ATV Presentations from HAM RADIO 2018 at Friedrichhsafen.<br /> <br /> * [[ HAM RADIO 2019 ]] ATV Presentations from HAM RADIO 2019 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2022 ]] ATV Presentations from HAM RADIO 2022 at Friedrichshafen.<br /> <br /> * [[ RSGB Convention 2022 ]] ATV Presentation at the 2022 RSGB Convention 2022<br /> <br /> * [[ HAM RADIO 2023 ]] ATV Presentations from HAM RADIO 2023 at Friedrichshafen.<br /> <br /> * [[ EMFcamp 2024 ]] BATC / AMSAT-UK / UKuG demonstration village at EMFcamp 2024.<br /> <br /> * [[ HAM RADIO 2024 ]] ATV Presentations from HAM RADIO 2024 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2025 ]] ATV Presentations from HAM RADIO 2025 at Friedrichshafen.<br /> <br /> ==HAMTV on the ISS==<br /> [[HAMTV from the ISS]]<br /> <br /> == Getting on the air with ATV ==<br /> ===The ATV bands===<br /> * [[29 MHz]]<br /> * [[51 MHz]]<br /> * [[71 MHz]]<br /> * [[146 MHz RB-TV]]<br /> * [[70cms Analogue TV]]<br /> * [[70cm DATV]]<br /> * [[23cms ATV]]<br /> * [[13cms]]<br /> * [[3.4 GHz DATV]]<br /> * [[5.6 GHz]]<br /> * [[10 GHz]]<br /> * [[:Media:ATV on 5.6 10 and 24 Ghz.pdf|April 2018 Presentation to MMRT about ATV on 5.6 10 and 24 GHz]]<br /> <br /> ===The different ATV modes===<br /> * [[Reduced bandwidth TV]] (RB-TV)<br /> * [[The Effect of FEC]]<br /> <br /> ===Equipment Options===<br /> * [[DATV transmitting Equipment]]<br /> <br /> ==Advanced encoding / input options==<br /> <br /> Details of advanced transmission configurations, primarily for H265,and video production software.<br /> <br /> * [[Feeding Video to Portsdown from vMix|Vmix output in to Portsdown IPTS input]]<br /> * [[OBS - Open Broadcast Studio|OBS output in to Portsdown IPTS input]]<br /> * [[Using GTX10xx Graphics card encoder with OBS]]<br /> * [[Custom_DATV_Firmware_for_the_Pluto|Using the Pluto for DATV]]<br /> * [[Jetson_Nano|Using the Jetson Nano with Portsdown]]<br /> <br /> == Operating ==<br /> * [[DATV equipment capability]] - Wiki page documenting the capabilities of common DATV transmit and receive equipment.<br /> * [[ATV standards]] - a list of standards used by ATV operators including FM bandwidths, DATV PIDs, symbol rates and FEC<br /> * [[EMF Compliance]] - information about EMF compliance for ATV and Microwave Operation<br /> * [[Directory of portable sites]] suitable for ATV and microwave operation<br /> * [https://www.google.com/maps/d/u/0/edit?mid=1VeLnRRbLwloDTL2i9-HE2sxqL0c&amp;ll=52.95536632179757%2C-0.49709419999999227&amp;z=7 Google map] showing possible portable operating sites<br /> * [[Mapping tools]] including finding the QRA locator of a site, UK postcode to Lat and Long conversion and a topographic overlay for Google maps<br /> * [[Propagation tools]]<br /> * [[UK ATV DX Records]] - a list of Known DX Records for the UK<br /> * [[2026 Activity Weekends]]<br /> * [[Christmas 2025 Repeater Contest &amp; Activity Ladder|Christmas 2025 repeater Contest &amp; Activity Ladder]]<br /> * [[2026 Activity Ladders]]<br /> * [[IARU ATV contest]] - How to enter the annual international TV contest<br /> * [[IARU ATV contest 2025 International Results]] - International Results for the June 2025 IARU Contest<br /> <br /> ==ATV repeaters==<br /> * [[ATV Repeater Map]]<br /> * [[UK ATV repeaters]]<br /> * [[USA ATV repeaters]]<br /> * [[Australian TV repeaters]]<br /> <br /> * [[Technical topics for ATV repeater builders]]<br /> <br /> ==Es'hail-2==<br /> * [[Es'hail-2 Basic Information|Getting started, LNBs and aligning a dish]]<br /> <br /> * [[Es'hail-2 Ground Station|Es'hail-2 BATC WebSDR &amp; DATV Spectrum Monitor]]<br /> <br /> * [[Es'hail-2 DATV Bandplan]]<br /> <br /> * [[Es'hail-2_LNBs_and_Antennaes|Es'hail-2_LNBs]]<br /> <br /> * [[Transmitting_Oscar_100_DATV_signals|Es'hail-2 Transmitters]]<br /> <br /> * [[Es'hail-2 Antennaes]]<br /> <br /> * [[Es'hail-2 conference transmissions]]<br /> <br /> <br /> ==ATV projects==<br /> * [[Adalm Pluto]] - Collection of information on using the Adalm Pluto for DATV<br /> * [[The MacGuffin Project]] - Collection of tools used to create an automated multi-band ATV system <br /> * [[Receiver upconverters]] - Details of upconverters to receive 146 and 437 MHz on STB and MiniTioune<br /> * [[Jetson Nano]] - Third generation computer-based DATV Transmitter<br /> * [[DTX1 TS]] - interface board to take in TS streams to the DTX1<br /> * [[RpiDATV]] - software for the Rpi<br /> * [[RBTVMOD]] - variable rate RB-TV mdulator for the Rpi<br /> * [[DATVExpress]] - SDR hardware based DATV transmitter covering 70 - 2450 MHz<br /> * [[PE43703 2025]] - PE43703 variable attenuator project 2025 version<br /> * [[PE4302]] - PE4302 variable attenuator project<br /> * [[ADF435x PIC]] - PIC controllers for Chinese ADF4350/4351 boards<br /> * [[DigiTwist]] - an experimental 2 axis satellite tracker<br /> * [[G4WIM PA controller]] - an advanced PA controller design by G4WIM published in CQ-TV 265<br /> * [[WinterHill Receiver Project]]<br /> * [[Tilt-O-Matic]] Pan and tilt head for surveyor tripods<br /> * [[Gerber Files]] Index of Gerber (PCB) files used by BATC and Members' Projects<br /> <br /> == Deutschsprachiges Wiki ==<br /> <br /> * Portsdown DATV Projekt - Deutschsprachiges Wiki<br /> * Minitioune(r) - Deutschsprachiges Wiki<br /> <br /> == Useful Circuits and notes ==<br /> * [[Antenna changeover relays]] - Notes on suitable antenna change over relays for ATV use.<br /> * [[Filters]] - Collection of links and designs for that most critical but over looked component!<br /> * [[Pre-amps]] - Notes, suppliers and circuits of pre-amplifiers suitable for ATV<br /> * [[Power amplifiers]] - Notes, suppliers and circuits of power amplifiers suitable for ATV<br /> * [[Video circuits]] - Notes and circuits for video processing<br /> * [[Satellite receiver tuning offsets]] - Note on how to set up a satellite receiver to directly receive L band signals.<br /> * [[Using ex-satellite dishes]] - Notes on how to find the feed point of a dish and designs for feeds to use<br /> <br /> == ATV Equipment manuals and schematics ==<br /> * [[Bob Platts G8OZP]] Circuits and documentation for the Bob Platts range of equipment<br /> * [[Comtech module]] - 23cms and 13cms ATV Tx and Rx circuits and guides<br /> * [[Solent ATV units]] - Tx and Rx circuits and information<br /> * [[Wood &amp; Douglas FM TV equipment]] - Circuits, pcb layouts and information<br /> * [[LMW Electronics]] - Circuits, pcb layouts and information<br /> * [[Fortop]] - Circuits, pcb layouts and information<br /> * [[Glencom]] - VC-510 VHF to L band up converter circuit diagram and modifications<br /> * [[Global communications]] - Hand drawn circuit of tuneable 70 / 140 MHz to L band block up converter<br /> * [[Jaybeam]] - Details of many Jaybeam aerials<br /> <br /> == Ex commercial broadcast equipment manuals ==<br /> * [[NDS System 3000]]<br /> * [[NDS Alteia rx]]<br /> <br /> == Test equipment Information ==<br /> For HP and Agilent equipment see the io group discussion at [https://groups.io/g/HP-Agilent-Keysight-equipment]<br /> <br /> == Other equipment information related to ATV ==</div>

G3gja https://wiki.batc.org.uk/index.php?title=IARU_ATV_contest&diff=12131 2026-02-20T14:27:50Z

<p>G3gja: </p> <hr /> <div>The most important on-air event of the year is the annual IARU ATV Contest which takes place over the second weekend of June each year.<br /> <br /> ==Update for 2026==<br /> <br /> The IARU Region 1 ATV Contest will go ahead on the weekend of 13 June 2026 from 1200UTC to 14 June 2026 1800UTC. In the UK there will be a 3 sections, one for single location stations, one for roving (multiple location) stations and a UK Only 2M stations.<br /> <br /> Please use the entry spreadsheet here: [https://www.iaru-r1.org/wp-content/uploads/2024/05/ATV-contest-log-IARU-V6-2024-5-16.xls Entry Spreadsheet]<br /> <br /> The normal rules can be found at [https://www.iaru-r1.org/wp-content/uploads/2024/05/Rules-IARU-R1-ATV-Contest.pdf IARU ATV Contest Rules]. <br /> <br /> Entries should be submitted to your National Coordinator (Clive G3GJA in the UK at contests@batc.tv). Rob, PE1ITR will accept entries direct on the e-mail address atv@iaru-r1.org if you are unable to contact your national coordinator.<br /> <br /> Please pass this on to any prospective participants – just for 2 days, we need to get people off of QO-100 and onto the other bands!<br /> <br /> ==Introduction==<br /> <br /> This is an international contest and ATV operators in all countries in IARU region 1 enter and a table of results is produced showing a league table of entries based on bands used and number of entries from each country.<br /> <br /> [[File:2018 IARU ATV Map.png|419px]]<br /> <br /> ===Who can enter?===<br /> <br /> Everyone! You can enter from your home station, from a portable location or a club station - and you don't have to be a BATC member to enter.<br /> <br /> You can get on air for an hour on Sunday morning or go out camping on the local hill top for the whole weekend!<br /> <br /> The rules allow for “roving” stations, so there is no reason why you should not operate from home on one day, and go out portable on another, or even use multiple portable sites. Just remember to use new 4-digit codes from each location '''and to ask for new codes''' from any station that you have worked before.<br /> <br /> ===What Bands are in Use?===<br /> <br /> The IARU region 1 ATV Contest includes all harmonised amateur bands above 400 MHz. For 2022, there is an additional section for 50 MHz entries. <br /> <br /> Note: Only the UK has the 71 and 146MHz bands and so are not included in the IARU ATV contest.<br /> <br /> ===What do I send and how is the contact confirmed?===<br /> <br /> The basic aim is to send a 4 digit code and have it successfully received - you'll find that most receiving stations add the 4 numbers to together and tell you the sum as confirmation that they received them.<br /> <br /> The numbers in the 4 digit code should not be the same or consecutive: 4752 is OK, but 2345 or 2222 are not and you need to send a different set of numbers on each band you transmit on.<br /> <br /> The numbers can be scribbled on a piece of paper, loaded in to a .jpg and played out as video or computer generated. The Portsdown system can automatically generate a different set of numbers for each band, but you need to set the numbers before the Contest. The default Portsdown numbers are not valid for contest use; full details of how to set them are here: [[Portsdown Contest Numbers]].<br /> <br /> ===Signal reports===<br /> <br /> Contest reports use the P scale for reporting ATV signal readability: The P report is followed by a sequential 3 digit serial number for the contact. For example for your first contact on 23 cm you might send the report P4001, and for the second contact P5002. <br /> <br /> Start the serial number from 001 for each band; if you are unsuccessful in receiving pictures, you should send back a report such as P0003. This ensures that your attempt at a contact appears in the log.<br /> <br /> [[File:p reports.JPG|400px]]<br /> <br /> Note that if you receive numbers from another station, he must be at least P2. You won't get any points for P1 reports!<br /> <br /> ===How do I know other people are on the air?===<br /> <br /> The easiest way to co-ordinate and set up contacts is by calling / listening on 144.750MHz FM.<br /> <br /> Most stations will also submit proposed activity plans on the BATC forum - the 2018 plans are here: https://forum.batc.org.uk/viewtopic.php?f=75&amp;t=5427<br /> <br /> DXSpot.TV https://dxspot.batc.org.uk/ was set up to co-ordinate ATV contacts and have a real time chat room where you can message other ATV operators directly - we suggest you register for an account before the contest.<br /> <br /> You can access the DXSpot.TV chat room over low bandwidth (2G?) links using this address: https://dxspot.batc.org.uk/chat/<br /> <br /> ===Time of contest===<br /> <br /> The contest rules refer to times in UTC: this is Universal Coordinated Time (the abbreviation comes from the French translation which is internationally accepted). Many of us will know this as Greenwich Mean Time (GMT), which is the clock time in the UK during the winter, but one hour behind in the Summer when we use British Summer Time (BST). This is why the International Contest starts at 1pm and finishes at 7pm for us. UTC should be used for the contest log.<br /> <br /> ===Submitting an entry===<br /> <br /> While the important thing is that you get &quot;on the air&quot; at sometime over the weekend, it would be great if you also took the time to submit an entry, even if it is only for a single 5km QSO across town using the 5665MHz drone equipment you just got working! That way we can show to Ofcom and other users that there is real activity on the ATV bands and also so the UK can have highest number of entries in the contest!<br /> <br /> You should submit an entry on the official Excel Spreadsheet which you can download from here [[:File:ATV-contest-log-callsign-20220611.xls]]<br /> <br /> Note that you must &quot;Enable Macros&quot; to allow all the calculations in the spreadsheet to work.<br /> <br /> Once you have completed the entries please email them to contests@batc.tv.<br /> <br /> ===Contact scoring===<br /> <br /> When you submit an entry your contact will be awarded a score based on these rules:<br /> <br /> A two-way exchange of the four-digit code group by vision together with the exchange of the other information shall score double the number of points per km shown in this table:<br /> <br /> [[File:Scoring multipliers.JPG|400px]]<br /> <br /> One way contacts score the number of points per km shown.<br /> <br /> Note that for scoring purposes, all valid contacts shall be deemed to have taken place over a distance of at least 5 kilometres, even if the two stations in contact have the same or adjacent IARU locators.<br /> <br /> Reports of P1 do not allow for exchange of numbers - so make sure that all point-scoring contacts are at least P2!<br /> <br /> ==Previous year's results==<br /> <br /> The number of stations entering the contest across Region 1 is as follows:<br /> <br /> 2014 = 33<br /> <br /> 2015 = 42<br /> <br /> 2016 = 52<br /> <br /> 2017 = 95<br /> <br /> 2018 = 100<br /> <br /> 2019 = 55<br /> <br /> 2020 = 92<br /> <br /> 2021 = 85<br /> <br /> ===2021 contest results===<br /> <br /> Noel G8GTZ had the highest overall score in IARU Region 1.<br /> <br /> ===2020 contest results===<br /> <br /> Francesco IK3HHG had the highest score, while Noel G8GTZ was the highest placed UK entry.<br /> <br /> ===2019 contest results===<br /> <br /> Noel G8GTZ was the top UK station and also band winner on 24GHz along with G4FRE.<br /> <br /> Full results can be found here https://www.iaru-r1.org/wp-content/uploads/2019/09/IARU-Region-1-ATV-Contest-2019-Results.pdf<br /> <br /> BATC also ran a 71 and 146MHz contest alongside the main event - results can be found here: https://forum.batc.org.uk/viewtopic.php?f=75&amp;t=6206<br /> <br /> ===2018 contest results===<br /> <br /> UK stations won both the 24GHz and 76 GHz sections and Rob M0DTS was the highest placed UK station.<br /> <br /> The international 2018 IARU ATV contest results can be found [[IARU_ATV_contest_2018_International_Results|here]].<br /> <br /> A full list of the UK results can be found [[IARU_ATV_contest_2018_Results|here]].<br /> <br /> ===2017 contest results===<br /> <br /> The 2017 contest results are available here https://vhf-uhf.veron.nl/wp-content/uploads/2015/08/IARU-ATV-results-2017.pdf<br /> <br /> Congratulations to Rob M0DTS for the top UK entry and to Terry G1LPS for winning the overall 9cm section for the third year in succession!<br /> <br /> <br /> ===Certificates===<br /> <br /> All entrants will receive a Certificate stating their overall position in the IARU Contest. Band winners for the IARU bands will receive a certiificate from the IARU; Band winners in the BATC Contest (71 and 146 MHz) will receive a certificate from the BATC.<br /> <br /> ===More information===<br /> <br /> The latest Rules for the International ATV Contest can be downloaded here [[Media:2018_ATV_Contest_Rules.pdf]](.pdf). <br /> <br /> The Contest Manager can be contacted on mailto:contests@batc.tv</div>

G3gja https://wiki.batc.org.uk/index.php?title=IARU_ATV_contest&diff=12130 2026-02-20T14:27:29Z

<p>G3gja: </p> <hr /> <div>The most important on-air event of the year is the annual IARU ATV Contest which takes place over the second weekend of June each year.<br /> <br /> ==Update for 2025==<br /> <br /> The IARU Region 1 ATV Contest will go ahead on the weekend of 13 June 2026 from 1200UTC to 14 June 2026 1800UTC. In the UK there will be a 3 sections, one for single location stations, one for roving (multiple location) stations and a UK Only 2M stations.<br /> <br /> Please use the entry spreadsheet here: [https://www.iaru-r1.org/wp-content/uploads/2024/05/ATV-contest-log-IARU-V6-2024-5-16.xls Entry Spreadsheet]<br /> <br /> The normal rules can be found at [https://www.iaru-r1.org/wp-content/uploads/2024/05/Rules-IARU-R1-ATV-Contest.pdf IARU ATV Contest Rules]. <br /> <br /> Entries should be submitted to your National Coordinator (Clive G3GJA in the UK at contests@batc.tv). Rob, PE1ITR will accept entries direct on the e-mail address atv@iaru-r1.org if you are unable to contact your national coordinator.<br /> <br /> Please pass this on to any prospective participants – just for 2 days, we need to get people off of QO-100 and onto the other bands!<br /> <br /> ==Introduction==<br /> <br /> This is an international contest and ATV operators in all countries in IARU region 1 enter and a table of results is produced showing a league table of entries based on bands used and number of entries from each country.<br /> <br /> [[File:2018 IARU ATV Map.png|419px]]<br /> <br /> ===Who can enter?===<br /> <br /> Everyone! You can enter from your home station, from a portable location or a club station - and you don't have to be a BATC member to enter.<br /> <br /> You can get on air for an hour on Sunday morning or go out camping on the local hill top for the whole weekend!<br /> <br /> The rules allow for “roving” stations, so there is no reason why you should not operate from home on one day, and go out portable on another, or even use multiple portable sites. Just remember to use new 4-digit codes from each location '''and to ask for new codes''' from any station that you have worked before.<br /> <br /> ===What Bands are in Use?===<br /> <br /> The IARU region 1 ATV Contest includes all harmonised amateur bands above 400 MHz. For 2022, there is an additional section for 50 MHz entries. <br /> <br /> Note: Only the UK has the 71 and 146MHz bands and so are not included in the IARU ATV contest.<br /> <br /> ===What do I send and how is the contact confirmed?===<br /> <br /> The basic aim is to send a 4 digit code and have it successfully received - you'll find that most receiving stations add the 4 numbers to together and tell you the sum as confirmation that they received them.<br /> <br /> The numbers in the 4 digit code should not be the same or consecutive: 4752 is OK, but 2345 or 2222 are not and you need to send a different set of numbers on each band you transmit on.<br /> <br /> The numbers can be scribbled on a piece of paper, loaded in to a .jpg and played out as video or computer generated. The Portsdown system can automatically generate a different set of numbers for each band, but you need to set the numbers before the Contest. The default Portsdown numbers are not valid for contest use; full details of how to set them are here: [[Portsdown Contest Numbers]].<br /> <br /> ===Signal reports===<br /> <br /> Contest reports use the P scale for reporting ATV signal readability: The P report is followed by a sequential 3 digit serial number for the contact. For example for your first contact on 23 cm you might send the report P4001, and for the second contact P5002. <br /> <br /> Start the serial number from 001 for each band; if you are unsuccessful in receiving pictures, you should send back a report such as P0003. This ensures that your attempt at a contact appears in the log.<br /> <br /> [[File:p reports.JPG|400px]]<br /> <br /> Note that if you receive numbers from another station, he must be at least P2. You won't get any points for P1 reports!<br /> <br /> ===How do I know other people are on the air?===<br /> <br /> The easiest way to co-ordinate and set up contacts is by calling / listening on 144.750MHz FM.<br /> <br /> Most stations will also submit proposed activity plans on the BATC forum - the 2018 plans are here: https://forum.batc.org.uk/viewtopic.php?f=75&amp;t=5427<br /> <br /> DXSpot.TV https://dxspot.batc.org.uk/ was set up to co-ordinate ATV contacts and have a real time chat room where you can message other ATV operators directly - we suggest you register for an account before the contest.<br /> <br /> You can access the DXSpot.TV chat room over low bandwidth (2G?) links using this address: https://dxspot.batc.org.uk/chat/<br /> <br /> ===Time of contest===<br /> <br /> The contest rules refer to times in UTC: this is Universal Coordinated Time (the abbreviation comes from the French translation which is internationally accepted). Many of us will know this as Greenwich Mean Time (GMT), which is the clock time in the UK during the winter, but one hour behind in the Summer when we use British Summer Time (BST). This is why the International Contest starts at 1pm and finishes at 7pm for us. UTC should be used for the contest log.<br /> <br /> ===Submitting an entry===<br /> <br /> While the important thing is that you get &quot;on the air&quot; at sometime over the weekend, it would be great if you also took the time to submit an entry, even if it is only for a single 5km QSO across town using the 5665MHz drone equipment you just got working! That way we can show to Ofcom and other users that there is real activity on the ATV bands and also so the UK can have highest number of entries in the contest!<br /> <br /> You should submit an entry on the official Excel Spreadsheet which you can download from here [[:File:ATV-contest-log-callsign-20220611.xls]]<br /> <br /> Note that you must &quot;Enable Macros&quot; to allow all the calculations in the spreadsheet to work.<br /> <br /> Once you have completed the entries please email them to contests@batc.tv.<br /> <br /> ===Contact scoring===<br /> <br /> When you submit an entry your contact will be awarded a score based on these rules:<br /> <br /> A two-way exchange of the four-digit code group by vision together with the exchange of the other information shall score double the number of points per km shown in this table:<br /> <br /> [[File:Scoring multipliers.JPG|400px]]<br /> <br /> One way contacts score the number of points per km shown.<br /> <br /> Note that for scoring purposes, all valid contacts shall be deemed to have taken place over a distance of at least 5 kilometres, even if the two stations in contact have the same or adjacent IARU locators.<br /> <br /> Reports of P1 do not allow for exchange of numbers - so make sure that all point-scoring contacts are at least P2!<br /> <br /> ==Previous year's results==<br /> <br /> The number of stations entering the contest across Region 1 is as follows:<br /> <br /> 2014 = 33<br /> <br /> 2015 = 42<br /> <br /> 2016 = 52<br /> <br /> 2017 = 95<br /> <br /> 2018 = 100<br /> <br /> 2019 = 55<br /> <br /> 2020 = 92<br /> <br /> 2021 = 85<br /> <br /> ===2021 contest results===<br /> <br /> Noel G8GTZ had the highest overall score in IARU Region 1.<br /> <br /> ===2020 contest results===<br /> <br /> Francesco IK3HHG had the highest score, while Noel G8GTZ was the highest placed UK entry.<br /> <br /> ===2019 contest results===<br /> <br /> Noel G8GTZ was the top UK station and also band winner on 24GHz along with G4FRE.<br /> <br /> Full results can be found here https://www.iaru-r1.org/wp-content/uploads/2019/09/IARU-Region-1-ATV-Contest-2019-Results.pdf<br /> <br /> BATC also ran a 71 and 146MHz contest alongside the main event - results can be found here: https://forum.batc.org.uk/viewtopic.php?f=75&amp;t=6206<br /> <br /> ===2018 contest results===<br /> <br /> UK stations won both the 24GHz and 76 GHz sections and Rob M0DTS was the highest placed UK station.<br /> <br /> The international 2018 IARU ATV contest results can be found [[IARU_ATV_contest_2018_International_Results|here]].<br /> <br /> A full list of the UK results can be found [[IARU_ATV_contest_2018_Results|here]].<br /> <br /> ===2017 contest results===<br /> <br /> The 2017 contest results are available here https://vhf-uhf.veron.nl/wp-content/uploads/2015/08/IARU-ATV-results-2017.pdf<br /> <br /> Congratulations to Rob M0DTS for the top UK entry and to Terry G1LPS for winning the overall 9cm section for the third year in succession!<br /> <br /> <br /> ===Certificates===<br /> <br /> All entrants will receive a Certificate stating their overall position in the IARU Contest. Band winners for the IARU bands will receive a certiificate from the IARU; Band winners in the BATC Contest (71 and 146 MHz) will receive a certificate from the BATC.<br /> <br /> ===More information===<br /> <br /> The latest Rules for the International ATV Contest can be downloaded here [[Media:2018_ATV_Contest_Rules.pdf]](.pdf). <br /> <br /> The Contest Manager can be contacted on mailto:contests@batc.tv</div>

G3gja https://wiki.batc.org.uk/index.php?title=2026_Activity_Ladders&diff=12129 2026-02-20T14:21:35Z

<p>G3gja: </p> <hr /> <div>1. Introduction. The main object of the Activity Ladders is to promote ATV activity on 5.6GHz, 70cm and 2m. Anyone interested in ATV, whether they are members of the British Amateur Television Club or not, are welcome to take part.<br /> <br /> 2. Eligibility. BATC Contests are open to all licensed radio amateurs who are equipped to transmit pictures by analogue or digital Fast Scan. There is no receive only section.<br /> <br /> 3. Dates and Times. The competition will run from 0000hrs UTC on 1st January 2026 to 2359hrs UTC on the 31st December 2026.<br /> <br /> 4. Location. Operating locations must be within the terms of your licence. If operating away from your main station, please get the permission of the landowner. Any (legal) location may be used, but contacts between two licensees operating from unchanged locations may only be claimed a maximum of twice per week. For example, if you have a daily sked, you may claim for it twice per week. It is essential that you adhere to any local and national COVID virus movement and assembly restrictions in force.<br /> <br /> 5. Frequencies and Modes. This Ladder is restricted to the 6cm, 70cm and 2m bands, using either FM ATV or digital ATV modes appropriate for the band in use. Contacts using Narrow band voice (SSB), CW and data modes are not valid for the activity ladder.<br /> <br /> 6. Power. Output power must not exceed that set out in the terms of your licence.<br /> <br /> 7. Exchange. Both a CALL SIGN and a FOUR-FIGURE code number must be conveyed and received by another station. Reception of the transmitted signal can only be via the RF link. Reception via a streamer is not permitted.<br /> <br /> Confirmation of reception is required by transmitting the sum of the code numbers (not the actual transmitted number) on the talk-back channel. Stations are encouraged to use amateur radio for talkback, but use of mobile phones or internet is permitted.<br /> <br /> Please note that the contest number should be four random chosen digits. The digits shall neither be the same (e.g. 2222) nor consecutive (e.g. 4567 or 5432).<br /> <br /> 8. On-line logging. Use the appropriate Activity Ladder page on the BATC website here: https://batc.org.uk/6cm-ladder or https://batc.org.uk/70cm-ladder and fill in the boxes for each contact as appropriate. The website will calculate the points awarded for the contact and add them to your total. You can add contacts made since the 1st January 2026 retrospectively. Entries will only be accepted via the on-line Activity Ladder web page.<br /> <br /> 9. Disputes. The decision of the contest manager and/or the BATC Committee is final.<br /> <br /> 10. Spirit of the Contest. Don’t leave your video transmission on any longer than necessary and don't hog the ATV calling channel 144.75 MHz; move off to another channel once the contact is established. Contests mean activity and good fun; join in and, even if you only work one or two stations, please use the Ladder to record your activity.<br /> <br /> 11. Declaration of Interest. Although acting as contest manager, I reserve the right to take part.<br /> <br /> 12. Contact Address. Queries can be submitted to: C. Reynolds, 49 Westborough Way, Anlaby Common, East Riding of Yorkshire HU4 7SW. Email: contests@batc.tv<br /> <br /> Clive Reynolds G3GJA / G8EQZ BATC Contest Manager 20 February 2026</div>

G3gja https://wiki.batc.org.uk/index.php?title=BATC_Wiki&diff=12128 2026-02-20T14:21:01Z

<p>G3gja: </p> <hr /> <div>'''Welcome to the British Amateur Television Club Wiki''' - the place to find information on all Amateur Television related equipment and projects. For details on how to join the BATC, the member's shop and CQ-TV archive and download visit the BATC website https://batc.org.uk/<br /> <br /> This is your site, developed by the BATC for use by the worldwide ATV community - any information which you feel is of use to others can be put on the Wiki but editing accounts are only available to trusted members. Please get in touch with any member of the BATC Committee if you have something of interest to post. Please do not request an account before contacting a member of the BATC Committee; requests without pre-approval are ignored.<br /> <br /> * New to Amateur TV - Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> * For details on the Portsdown DATV transmit and receive system go to [[The Portsdown DATV transceiver system|the Portsdown pages]]<br /> <br /> * For information on the MiniTiouner USB DATV receiver go to [[MiniTioune|MiniTiouner]]<br /> <br /> * For the DATV equipment capability list go to [[DATV equipment capability|https://wiki.batc.org.uk/DATV_equipment_capability]]<br /> <br /> <br /> == Contents ==<br /> * [[Registering]] on the BATC wiki<br /> <br /> == New to Amateur TV? ==<br /> * Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> ==BATC Information and services==<br /> * [[Joining the BATC]]<br /> <br /> * [[Renewing your membership]]<br /> <br /> * The [[BATC Privacy statement and data protection policy]]<br /> <br /> * The [[BATC forum]]<br /> <br /> * The [[BATC shop]]<br /> <br /> * The [[The_new_streamer|BATC streamer]]<br /> <br /> * The [[BATC archive]] Collection of photos and documents from BATC's past<br /> <br /> * The [[new BATC website|BATC website]]<br /> <br /> == BATC projects ==<br /> * [[The Portsdown Transmitter]] - the BATC's Raspberry Pi-based DATV Transmitter<br /> * [[MiniTioune]] - the DATV DVB-S / S2 receiver project<br /> * [[Ryde Receiver]] - Dedicated DATV set top box project<br /> * [[Knucker]] - Variable bandwidth DVB-T project<br /> * [[Advanced receiver hardware]] - Details of the BATC advanced receiver hardware.<br /> * [[WinterHill Receiver Project]] - Multi-channel DVB-S / S2 project<br /> * [[BATC Video Source]] - The Raspberry Pi-based composite video source described in CQ-TV 270<br /> * [[BATC HDMI Source]] - The Raspberry Pi-based HDMI video source to be described in CQ-TV 280<br /> * [[Digilite]] - The original home build DATV construction project<br /> * [[Repeater Controller]] - The BATC ATV Repeater Controller using a Raspberry Pi 4<br /> * [[ARISS Digital Communication System]]<br /> * [[PicoTuner]] - A USB tuner for DATV using the RpiPico as the USB interface<br /> <br /> == CQ-TV Magazine ==<br /> * [[Index of articles]]<br /> * [[Archive edition|Archive editions]] download<br /> * [[BATC_Software_Library]] for project downloads<br /> <br /> ==BATC Event Streaming Equipment==<br /> * [[Equipment Description]]<br /> <br /> == BATC Conventions ==<br /> <br /> Presentations from previous conventions can be found on this page [[BATC Conventions]]<br /> <br /> ==National and International Events==<br /> <br /> * [[ HAM RADIO 2018 ]] ATV Presentations from HAM RADIO 2018 at Friedrichhsafen.<br /> <br /> * [[ HAM RADIO 2019 ]] ATV Presentations from HAM RADIO 2019 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2022 ]] ATV Presentations from HAM RADIO 2022 at Friedrichshafen.<br /> <br /> * [[ RSGB Convention 2022 ]] ATV Presentation at the 2022 RSGB Convention 2022<br /> <br /> * [[ HAM RADIO 2023 ]] ATV Presentations from HAM RADIO 2023 at Friedrichshafen.<br /> <br /> * [[ EMFcamp 2024 ]] BATC / AMSAT-UK / UKuG demonstration village at EMFcamp 2024.<br /> <br /> * [[ HAM RADIO 2024 ]] ATV Presentations from HAM RADIO 2024 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2025 ]] ATV Presentations from HAM RADIO 2025 at Friedrichshafen.<br /> <br /> ==HAMTV on the ISS==<br /> [[HAMTV from the ISS]]<br /> <br /> == Getting on the air with ATV ==<br /> ===The ATV bands===<br /> * [[29 MHz]]<br /> * [[51 MHz]]<br /> * [[71 MHz]]<br /> * [[146 MHz RB-TV]]<br /> * [[70cms Analogue TV]]<br /> * [[70cm DATV]]<br /> * [[23cms ATV]]<br /> * [[13cms]]<br /> * [[3.4 GHz DATV]]<br /> * [[5.6 GHz]]<br /> * [[10 GHz]]<br /> * [[:Media:ATV on 5.6 10 and 24 Ghz.pdf|April 2018 Presentation to MMRT about ATV on 5.6 10 and 24 GHz]]<br /> <br /> ===The different ATV modes===<br /> * [[Reduced bandwidth TV]] (RB-TV)<br /> * [[The Effect of FEC]]<br /> <br /> ===Equipment Options===<br /> * [[DATV transmitting Equipment]]<br /> <br /> ==Advanced encoding / input options==<br /> <br /> Details of advanced transmission configurations, primarily for H265,and video production software.<br /> <br /> * [[Feeding Video to Portsdown from vMix|Vmix output in to Portsdown IPTS input]]<br /> * [[OBS - Open Broadcast Studio|OBS output in to Portsdown IPTS input]]<br /> * [[Using GTX10xx Graphics card encoder with OBS]]<br /> * [[Custom_DATV_Firmware_for_the_Pluto|Using the Pluto for DATV]]<br /> * [[Jetson_Nano|Using the Jetson Nano with Portsdown]]<br /> <br /> == Operating ==<br /> * [[DATV equipment capability]] - Wiki page documenting the capabilities of common DATV transmit and receive equipment.<br /> * [[ATV standards]] - a list of standards used by ATV operators including FM bandwidths, DATV PIDs, symbol rates and FEC<br /> * [[EMF Compliance]] - information about EMF compliance for ATV and Microwave Operation<br /> * [[Directory of portable sites]] suitable for ATV and microwave operation<br /> * [https://www.google.com/maps/d/u/0/edit?mid=1VeLnRRbLwloDTL2i9-HE2sxqL0c&amp;ll=52.95536632179757%2C-0.49709419999999227&amp;z=7 Google map] showing possible portable operating sites<br /> * [[Mapping tools]] including finding the QRA locator of a site, UK postcode to Lat and Long conversion and a topographic overlay for Google maps<br /> * [[Propagation tools]]<br /> * [[UK ATV DX Records]] - a list of Known DX Records for the UK<br /> * [[2026 Activity Weekends]]<br /> * [[Christmas 2025 Repeater Contest &amp; Activity Ladder|Christmas 2025 repeater Contest &amp; Activity Ladder]]<br /> * [[2026 Activity Ladders]]<br /> * [[IARU ATV contest]] - How to enter the annual international TV contest<br /> * [[IARU ATV contest 2023 International Results]] - International Results for the June 2023 IARU Contest<br /> * [[IARU ATV contest 2022 International Results]] - International Results for the June 2022 IARU Contest<br /> * [[IARU ATV contest 2021 International Results]] - International Results for the June 2021 IARU Contest<br /> * [[IARU ATV contest 2020 International Results]] - International Results for the June 2020 IARU Contest<br /> * [[IARU ATV contest 2019 International Results]] - International Results for the June 2019 IARU Contest<br /> * [[IARU ATV contest 2018 Results]] - UK Results for the June 2018 IARU and BATC Contests<br /> * [[IARU ATV contest 2018 International Results]] - International Results for the June 2018 IARU Contest<br /> * [[September 2019 BATC Low Band Contest]]<br /> <br /> ==ATV repeaters==<br /> * [[ATV Repeater Map]]<br /> * [[UK ATV repeaters]]<br /> * [[USA ATV repeaters]]<br /> * [[Australian TV repeaters]]<br /> <br /> * [[Technical topics for ATV repeater builders]]<br /> <br /> ==Es'hail-2==<br /> * [[Es'hail-2 Basic Information|Getting started, LNBs and aligning a dish]]<br /> <br /> * [[Es'hail-2 Ground Station|Es'hail-2 BATC WebSDR &amp; DATV Spectrum Monitor]]<br /> <br /> * [[Es'hail-2 DATV Bandplan]]<br /> <br /> * [[Es'hail-2_LNBs_and_Antennaes|Es'hail-2_LNBs]]<br /> <br /> * [[Transmitting_Oscar_100_DATV_signals|Es'hail-2 Transmitters]]<br /> <br /> * [[Es'hail-2 Antennaes]]<br /> <br /> * [[Es'hail-2 conference transmissions]]<br /> <br /> <br /> ==ATV projects==<br /> * [[Adalm Pluto]] - Collection of information on using the Adalm Pluto for DATV<br /> * [[The MacGuffin Project]] - Collection of tools used to create an automated multi-band ATV system <br /> * [[Receiver upconverters]] - Details of upconverters to receive 146 and 437 MHz on STB and MiniTioune<br /> * [[Jetson Nano]] - Third generation computer-based DATV Transmitter<br /> * [[DTX1 TS]] - interface board to take in TS streams to the DTX1<br /> * [[RpiDATV]] - software for the Rpi<br /> * [[RBTVMOD]] - variable rate RB-TV mdulator for the Rpi<br /> * [[DATVExpress]] - SDR hardware based DATV transmitter covering 70 - 2450 MHz<br /> * [[PE43703 2025]] - PE43703 variable attenuator project 2025 version<br /> * [[PE4302]] - PE4302 variable attenuator project<br /> * [[ADF435x PIC]] - PIC controllers for Chinese ADF4350/4351 boards<br /> * [[DigiTwist]] - an experimental 2 axis satellite tracker<br /> * [[G4WIM PA controller]] - an advanced PA controller design by G4WIM published in CQ-TV 265<br /> * [[WinterHill Receiver Project]]<br /> * [[Tilt-O-Matic]] Pan and tilt head for surveyor tripods<br /> * [[Gerber Files]] Index of Gerber (PCB) files used by BATC and Members' Projects<br /> <br /> == Deutschsprachiges Wiki ==<br /> <br /> * Portsdown DATV Projekt - Deutschsprachiges Wiki<br /> * Minitioune(r) - Deutschsprachiges Wiki<br /> <br /> == Useful Circuits and notes ==<br /> * [[Antenna changeover relays]] - Notes on suitable antenna change over relays for ATV use.<br /> * [[Filters]] - Collection of links and designs for that most critical but over looked component!<br /> * [[Pre-amps]] - Notes, suppliers and circuits of pre-amplifiers suitable for ATV<br /> * [[Power amplifiers]] - Notes, suppliers and circuits of power amplifiers suitable for ATV<br /> * [[Video circuits]] - Notes and circuits for video processing<br /> * [[Satellite receiver tuning offsets]] - Note on how to set up a satellite receiver to directly receive L band signals.<br /> * [[Using ex-satellite dishes]] - Notes on how to find the feed point of a dish and designs for feeds to use<br /> <br /> == ATV Equipment manuals and schematics ==<br /> * [[Bob Platts G8OZP]] Circuits and documentation for the Bob Platts range of equipment<br /> * [[Comtech module]] - 23cms and 13cms ATV Tx and Rx circuits and guides<br /> * [[Solent ATV units]] - Tx and Rx circuits and information<br /> * [[Wood &amp; Douglas FM TV equipment]] - Circuits, pcb layouts and information<br /> * [[LMW Electronics]] - Circuits, pcb layouts and information<br /> * [[Fortop]] - Circuits, pcb layouts and information<br /> * [[Glencom]] - VC-510 VHF to L band up converter circuit diagram and modifications<br /> * [[Global communications]] - Hand drawn circuit of tuneable 70 / 140 MHz to L band block up converter<br /> * [[Jaybeam]] - Details of many Jaybeam aerials<br /> <br /> == Ex commercial broadcast equipment manuals ==<br /> * [[NDS System 3000]]<br /> * [[NDS Alteia rx]]<br /> <br /> == Test equipment Information ==<br /> For HP and Agilent equipment see the io group discussion at [https://groups.io/g/HP-Agilent-Keysight-equipment]<br /> <br /> == Other equipment information related to ATV ==</div>

G3gja https://wiki.batc.org.uk/index.php?title=2026_Activity_Ladders&diff=12127 2026-02-20T14:20:11Z

<p>G3gja: Created page with &quot;1. Introduction. The main object of the Activity Ladders is to promote ATV activity on 5.6GHz, 70cm and 2m. Anyone interested in ATV, whether they are members of the British A...&quot;</p> <hr /> <div>1. Introduction. The main object of the Activity Ladders is to promote ATV activity on 5.6GHz, 70cm and 2m. Anyone interested in ATV, whether they are members of the British Amateur Television Club or not, are welcome to take part.<br /> <br /> 2. Eligibility. BATC Contests are open to all licensed radio amateurs who are equipped to transmit pictures by analogue or digital Fast Scan. There is no receive only section.<br /> <br /> 3. Dates and Times. The competition will run from 0000hrs UTC on 1st January 2025 to 2359hrs UTC on the 31st December 2025.<br /> <br /> 4. Location. Operating locations must be within the terms of your licence. If operating away from your main station, please get the permission of the landowner. Any (legal) location may be used, but contacts between two licensees operating from unchanged locations may only be claimed a maximum of twice per week. For example, if you have a daily sked, you may claim for it twice per week. It is essential that you adhere to any local and national COVID virus movement and assembly restrictions in force.<br /> <br /> 5. Frequencies and Modes. This Ladder is restricted to the 6cm, 70cm and 2m bands, using either FM ATV or digital ATV modes appropriate for the band in use. Contacts using Narrow band voice (SSB), CW and data modes are not valid for the activity ladder.<br /> <br /> 6. Power. Output power must not exceed that set out in the terms of your licence.<br /> <br /> 7. Exchange. Both a CALL SIGN and a FOUR-FIGURE code number must be conveyed and received by another station. Reception of the transmitted signal can only be via the RF link. Reception via a streamer is not permitted.<br /> <br /> Confirmation of reception is required by transmitting the sum of the code numbers (not the actual transmitted number) on the talk-back channel. Stations are encouraged to use amateur radio for talkback, but use of mobile phones or internet is permitted.<br /> <br /> Please note that the contest number should be four random chosen digits. The digits shall neither be the same (e.g. 2222) nor consecutive (e.g. 4567 or 5432).<br /> <br /> 8. On-line logging. Use the appropriate Activity Ladder page on the BATC website here: https://batc.org.uk/6cm-ladder or https://batc.org.uk/70cm-ladder and fill in the boxes for each contact as appropriate. The website will calculate the points awarded for the contact and add them to your total. You can add contacts made since the 1st January 2026 retrospectively. Entries will only be accepted via the on-line Activity Ladder web page.<br /> <br /> 9. Disputes. The decision of the contest manager and/or the BATC Committee is final.<br /> <br /> 10. Spirit of the Contest. Don’t leave your video transmission on any longer than necessary and don't hog the ATV calling channel 144.75 MHz; move off to another channel once the contact is established. Contests mean activity and good fun; join in and, even if you only work one or two stations, please use the Ladder to record your activity.<br /> <br /> 11. Declaration of Interest. Although acting as contest manager, I reserve the right to take part.<br /> <br /> 12. Contact Address. Queries can be submitted to: C. Reynolds, 49 Westborough Way, Anlaby Common, East Riding of Yorkshire HU4 7SW. Email: contests@batc.tv<br /> <br /> Clive Reynolds G3GJA / G8EQZ BATC Contest Manager 20 February 2026</div>

G3gja https://wiki.batc.org.uk/index.php?title=2025_Activity_Ladders&diff=12126 2026-02-20T14:18:48Z

<p>G3gja: </p> <hr /> <div>1. Introduction. The main object of the Activity Ladders is to promote ATV activity on 5.6GHz, 70cm and 2m. Anyone interested in ATV, whether they are members of the British Amateur Television Club or not, are welcome to take part.<br /> <br /> 2. Eligibility. BATC Contests are open to all licensed radio amateurs who are equipped to transmit pictures by analogue or digital Fast Scan. There is no receive only section.<br /> <br /> 3. Dates and Times. The competition will run from 0000hrs UTC on 1st January 2025 to 2359hrs UTC on the 31st December 2025.<br /> <br /> 4. Location. Operating locations must be within the terms of your licence. If operating away from your main station, please get the permission of the landowner. Any (legal) location may be used, but contacts between two licensees operating from unchanged locations may only be claimed a maximum of twice per week. For example, if you have a daily sked, you may claim for it twice per week. It is essential that you adhere to any local and national COVID virus movement and assembly restrictions in force.<br /> <br /> 5. Frequencies and Modes. This Ladder is restricted to the 6cm, 70cm and 2m bands, using either FM ATV or digital ATV modes appropriate for the band in use. Contacts using Narrow band voice (SSB), CW and data modes are not valid for the activity ladder.<br /> <br /> 6. Power. Output power must not exceed that set out in the terms of your licence.<br /> <br /> 7. Exchange. Both a CALL SIGN and a FOUR-FIGURE code number must be conveyed and received by another station. Reception of the transmitted signal can only be via the RF link. Reception via a streamer is not permitted.<br /> <br /> Confirmation of reception is required by transmitting the sum of the code numbers (not the actual transmitted number) on the talk-back channel. Stations are encouraged to use amateur radio for talkback, but use of mobile phones or internet is permitted.<br /> <br /> Please note that the contest number should be four random chosen digits. The digits shall neither be the same (e.g. 2222) nor consecutive (e.g. 4567 or 5432).<br /> <br /> 8. On-line logging. Use the appropriate Activity Ladder page on the BATC website here: https://batc.org.uk/6cm-ladder or https://batc.org.uk/70cm-ladder and fill in the boxes for each contact as appropriate. The website will calculate the points awarded for the contact and add them to your total. You can add contacts made since the 1st January 2026 retrospectively. Entries will only be accepted via the on-line Activity Ladder web page.<br /> <br /> 9. Disputes. The decision of the contest manager and/or the BATC Committee is final.<br /> <br /> 10. Spirit of the Contest. Don’t leave your video transmission on any longer than necessary and don't hog the ATV calling channel 144.75 MHz; move off to another channel once the contact is established. Contests mean activity and good fun; join in and, even if you only work one or two stations, please use the Ladder to record your activity.<br /> <br /> 11. Declaration of Interest. Although acting as contest manager, I reserve the right to take part.<br /> <br /> 12. Contact Address. Queries can be submitted to: C. Reynolds, 49 Westborough Way, Anlaby Common, East Riding of Yorkshire HU4 7SW. Email: contests@batc.tv<br /> <br /> Clive Reynolds G3GJA / G8EQZ BATC Contest Manager 20 February 2026</div>

G3gja https://wiki.batc.org.uk/index.php?title=BATC_Wiki&diff=12125 2026-02-20T14:15:59Z

<p>G3gja: /* Operating */</p> <hr /> <div>'''Welcome to the British Amateur Television Club Wiki''' - the place to find information on all Amateur Television related equipment and projects. For details on how to join the BATC, the member's shop and CQ-TV archive and download visit the BATC website https://batc.org.uk/<br /> <br /> This is your site, developed by the BATC for use by the worldwide ATV community - any information which you feel is of use to others can be put on the Wiki but editing accounts are only available to trusted members. Please get in touch with any member of the BATC Committee if you have something of interest to post. Please do not request an account before contacting a member of the BATC Committee; requests without pre-approval are ignored.<br /> <br /> * New to Amateur TV - Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> * For details on the Portsdown DATV transmit and receive system go to [[The Portsdown DATV transceiver system|the Portsdown pages]]<br /> <br /> * For information on the MiniTiouner USB DATV receiver go to [[MiniTioune|MiniTiouner]]<br /> <br /> * For the DATV equipment capability list go to [[DATV equipment capability|https://wiki.batc.org.uk/DATV_equipment_capability]]<br /> <br /> <br /> == Contents ==<br /> * [[Registering]] on the BATC wiki<br /> <br /> == New to Amateur TV? ==<br /> * Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> ==BATC Information and services==<br /> * [[Joining the BATC]]<br /> <br /> * [[Renewing your membership]]<br /> <br /> * The [[BATC Privacy statement and data protection policy]]<br /> <br /> * The [[BATC forum]]<br /> <br /> * The [[BATC shop]]<br /> <br /> * The [[The_new_streamer|BATC streamer]]<br /> <br /> * The [[BATC archive]] Collection of photos and documents from BATC's past<br /> <br /> * The [[new BATC website|BATC website]]<br /> <br /> == BATC projects ==<br /> * [[The Portsdown Transmitter]] - the BATC's Raspberry Pi-based DATV Transmitter<br /> * [[MiniTioune]] - the DATV DVB-S / S2 receiver project<br /> * [[Ryde Receiver]] - Dedicated DATV set top box project<br /> * [[Knucker]] - Variable bandwidth DVB-T project<br /> * [[Advanced receiver hardware]] - Details of the BATC advanced receiver hardware.<br /> * [[WinterHill Receiver Project]] - Multi-channel DVB-S / S2 project<br /> * [[BATC Video Source]] - The Raspberry Pi-based composite video source described in CQ-TV 270<br /> * [[BATC HDMI Source]] - The Raspberry Pi-based HDMI video source to be described in CQ-TV 280<br /> * [[Digilite]] - The original home build DATV construction project<br /> * [[Repeater Controller]] - The BATC ATV Repeater Controller using a Raspberry Pi 4<br /> * [[ARISS Digital Communication System]]<br /> * [[PicoTuner]] - A USB tuner for DATV using the RpiPico as the USB interface<br /> <br /> == CQ-TV Magazine ==<br /> * [[Index of articles]]<br /> * [[Archive edition|Archive editions]] download<br /> * [[BATC_Software_Library]] for project downloads<br /> <br /> ==BATC Event Streaming Equipment==<br /> * [[Equipment Description]]<br /> <br /> == BATC Conventions ==<br /> <br /> Presentations from previous conventions can be found on this page [[BATC Conventions]]<br /> <br /> ==National and International Events==<br /> <br /> * [[ HAM RADIO 2018 ]] ATV Presentations from HAM RADIO 2018 at Friedrichhsafen.<br /> <br /> * [[ HAM RADIO 2019 ]] ATV Presentations from HAM RADIO 2019 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2022 ]] ATV Presentations from HAM RADIO 2022 at Friedrichshafen.<br /> <br /> * [[ RSGB Convention 2022 ]] ATV Presentation at the 2022 RSGB Convention 2022<br /> <br /> * [[ HAM RADIO 2023 ]] ATV Presentations from HAM RADIO 2023 at Friedrichshafen.<br /> <br /> * [[ EMFcamp 2024 ]] BATC / AMSAT-UK / UKuG demonstration village at EMFcamp 2024.<br /> <br /> * [[ HAM RADIO 2024 ]] ATV Presentations from HAM RADIO 2024 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2025 ]] ATV Presentations from HAM RADIO 2025 at Friedrichshafen.<br /> <br /> ==HAMTV on the ISS==<br /> [[HAMTV from the ISS]]<br /> <br /> == Getting on the air with ATV ==<br /> ===The ATV bands===<br /> * [[29 MHz]]<br /> * [[51 MHz]]<br /> * [[71 MHz]]<br /> * [[146 MHz RB-TV]]<br /> * [[70cms Analogue TV]]<br /> * [[70cm DATV]]<br /> * [[23cms ATV]]<br /> * [[13cms]]<br /> * [[3.4 GHz DATV]]<br /> * [[5.6 GHz]]<br /> * [[10 GHz]]<br /> * [[:Media:ATV on 5.6 10 and 24 Ghz.pdf|April 2018 Presentation to MMRT about ATV on 5.6 10 and 24 GHz]]<br /> <br /> ===The different ATV modes===<br /> * [[Reduced bandwidth TV]] (RB-TV)<br /> * [[The Effect of FEC]]<br /> <br /> ===Equipment Options===<br /> * [[DATV transmitting Equipment]]<br /> <br /> ==Advanced encoding / input options==<br /> <br /> Details of advanced transmission configurations, primarily for H265,and video production software.<br /> <br /> * [[Feeding Video to Portsdown from vMix|Vmix output in to Portsdown IPTS input]]<br /> * [[OBS - Open Broadcast Studio|OBS output in to Portsdown IPTS input]]<br /> * [[Using GTX10xx Graphics card encoder with OBS]]<br /> * [[Custom_DATV_Firmware_for_the_Pluto|Using the Pluto for DATV]]<br /> * [[Jetson_Nano|Using the Jetson Nano with Portsdown]]<br /> <br /> == Operating ==<br /> * [[DATV equipment capability]] - Wiki page documenting the capabilities of common DATV transmit and receive equipment.<br /> * [[ATV standards]] - a list of standards used by ATV operators including FM bandwidths, DATV PIDs, symbol rates and FEC<br /> * [[EMF Compliance]] - information about EMF compliance for ATV and Microwave Operation<br /> * [[Directory of portable sites]] suitable for ATV and microwave operation<br /> * [https://www.google.com/maps/d/u/0/edit?mid=1VeLnRRbLwloDTL2i9-HE2sxqL0c&amp;ll=52.95536632179757%2C-0.49709419999999227&amp;z=7 Google map] showing possible portable operating sites<br /> * [[Mapping tools]] including finding the QRA locator of a site, UK postcode to Lat and Long conversion and a topographic overlay for Google maps<br /> * [[Propagation tools]]<br /> * [[UK ATV DX Records]] - a list of Known DX Records for the UK<br /> * [[2026 Activity Weekends]]<br /> * [[Christmas 2025 Repeater Contest &amp; Activity Ladder|Christmas 2025 repeater Contest &amp; Activity Ladder]]<br /> * [[2025 Activity Ladders]]<br /> * [[IARU ATV contest]] - How to enter the annual international TV contest<br /> * [[IARU ATV contest 2023 International Results]] - International Results for the June 2023 IARU Contest<br /> * [[IARU ATV contest 2022 International Results]] - International Results for the June 2022 IARU Contest<br /> * [[IARU ATV contest 2021 International Results]] - International Results for the June 2021 IARU Contest<br /> * [[IARU ATV contest 2020 International Results]] - International Results for the June 2020 IARU Contest<br /> * [[IARU ATV contest 2019 International Results]] - International Results for the June 2019 IARU Contest<br /> * [[IARU ATV contest 2018 Results]] - UK Results for the June 2018 IARU and BATC Contests<br /> * [[IARU ATV contest 2018 International Results]] - International Results for the June 2018 IARU Contest<br /> * [[September 2019 BATC Low Band Contest]]<br /> <br /> ==ATV repeaters==<br /> * [[ATV Repeater Map]]<br /> * [[UK ATV repeaters]]<br /> * [[USA ATV repeaters]]<br /> * [[Australian TV repeaters]]<br /> <br /> * [[Technical topics for ATV repeater builders]]<br /> <br /> ==Es'hail-2==<br /> * [[Es'hail-2 Basic Information|Getting started, LNBs and aligning a dish]]<br /> <br /> * [[Es'hail-2 Ground Station|Es'hail-2 BATC WebSDR &amp; DATV Spectrum Monitor]]<br /> <br /> * [[Es'hail-2 DATV Bandplan]]<br /> <br /> * [[Es'hail-2_LNBs_and_Antennaes|Es'hail-2_LNBs]]<br /> <br /> * [[Transmitting_Oscar_100_DATV_signals|Es'hail-2 Transmitters]]<br /> <br /> * [[Es'hail-2 Antennaes]]<br /> <br /> * [[Es'hail-2 conference transmissions]]<br /> <br /> <br /> ==ATV projects==<br /> * [[Adalm Pluto]] - Collection of information on using the Adalm Pluto for DATV<br /> * [[The MacGuffin Project]] - Collection of tools used to create an automated multi-band ATV system <br /> * [[Receiver upconverters]] - Details of upconverters to receive 146 and 437 MHz on STB and MiniTioune<br /> * [[Jetson Nano]] - Third generation computer-based DATV Transmitter<br /> * [[DTX1 TS]] - interface board to take in TS streams to the DTX1<br /> * [[RpiDATV]] - software for the Rpi<br /> * [[RBTVMOD]] - variable rate RB-TV mdulator for the Rpi<br /> * [[DATVExpress]] - SDR hardware based DATV transmitter covering 70 - 2450 MHz<br /> * [[PE43703 2025]] - PE43703 variable attenuator project 2025 version<br /> * [[PE4302]] - PE4302 variable attenuator project<br /> * [[ADF435x PIC]] - PIC controllers for Chinese ADF4350/4351 boards<br /> * [[DigiTwist]] - an experimental 2 axis satellite tracker<br /> * [[G4WIM PA controller]] - an advanced PA controller design by G4WIM published in CQ-TV 265<br /> * [[WinterHill Receiver Project]]<br /> * [[Tilt-O-Matic]] Pan and tilt head for surveyor tripods<br /> * [[Gerber Files]] Index of Gerber (PCB) files used by BATC and Members' Projects<br /> <br /> == Deutschsprachiges Wiki ==<br /> <br /> * Portsdown DATV Projekt - Deutschsprachiges Wiki<br /> * Minitioune(r) - Deutschsprachiges Wiki<br /> <br /> == Useful Circuits and notes ==<br /> * [[Antenna changeover relays]] - Notes on suitable antenna change over relays for ATV use.<br /> * [[Filters]] - Collection of links and designs for that most critical but over looked component!<br /> * [[Pre-amps]] - Notes, suppliers and circuits of pre-amplifiers suitable for ATV<br /> * [[Power amplifiers]] - Notes, suppliers and circuits of power amplifiers suitable for ATV<br /> * [[Video circuits]] - Notes and circuits for video processing<br /> * [[Satellite receiver tuning offsets]] - Note on how to set up a satellite receiver to directly receive L band signals.<br /> * [[Using ex-satellite dishes]] - Notes on how to find the feed point of a dish and designs for feeds to use<br /> <br /> == ATV Equipment manuals and schematics ==<br /> * [[Bob Platts G8OZP]] Circuits and documentation for the Bob Platts range of equipment<br /> * [[Comtech module]] - 23cms and 13cms ATV Tx and Rx circuits and guides<br /> * [[Solent ATV units]] - Tx and Rx circuits and information<br /> * [[Wood &amp; Douglas FM TV equipment]] - Circuits, pcb layouts and information<br /> * [[LMW Electronics]] - Circuits, pcb layouts and information<br /> * [[Fortop]] - Circuits, pcb layouts and information<br /> * [[Glencom]] - VC-510 VHF to L band up converter circuit diagram and modifications<br /> * [[Global communications]] - Hand drawn circuit of tuneable 70 / 140 MHz to L band block up converter<br /> * [[Jaybeam]] - Details of many Jaybeam aerials<br /> <br /> == Ex commercial broadcast equipment manuals ==<br /> * [[NDS System 3000]]<br /> * [[NDS Alteia rx]]<br /> <br /> == Test equipment Information ==<br /> For HP and Agilent equipment see the io group discussion at [https://groups.io/g/HP-Agilent-Keysight-equipment]<br /> <br /> == Other equipment information related to ATV ==</div>

G3gja https://wiki.batc.org.uk/index.php?title=2026_Activity_Weekends&diff=12124 2026-02-20T14:15:08Z

<p>G3gja: </p> <hr /> <div>I have again aligned the Activity Weekend dates with the Dutch ATV Contest events. Including the IARU, there are 10 events next year, one less than 2025. The increased spacing during the colder months will take the pressure of turning out every four weeks away from portable stations and hopefully increase participation. The warmer months are closer spaced for a better chance of catching some Tropo. The August dates have been chosen to avoid BATC events, but they have not been determined yet.<br /> <br /> All BATC Activity Weekends include 23cm in addition to the bands listed below and run for the full 48 hours GMT or BST as appropriate. Veron Contests run from 12:00 UTC Saturday to 18:00 UTC Sunday. Veron ATV Contests include DATV, whereas DATV Contests are exclusively digital.<br /> <br /> Published 20/02/2026<br /> <br /> Clive G3GJA, BATC Contest Manager<br /> <br /> [[File:2026awc.png|center|BATC Activity &amp; Contest Calendar 2026]]</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:2026awc.png&diff=12123 2026-02-20T14:13:16Z

<p>G3gja: </p> <hr /> <div>2026 Activity Weekend Calendar</div>

G3gja https://wiki.batc.org.uk/index.php?title=2026_Activity_Weekends&diff=12122 2026-02-20T14:06:12Z

<p>G3gja: Created page with &quot;I have again aligned the Activity Weekend dates with the Dutch ATV Contest events. Including the IARU, there are 11 events next year, two less than 2024. The increased spacing...&quot;</p> <hr /> <div>I have again aligned the Activity Weekend dates with the Dutch ATV Contest events. Including the IARU, there are 11 events next year, two less than 2024. The increased spacing during the colder months will take the pressure of turning out every four weeks away from portable stations and hopefully increase participation. The warmer months are closer spaced for a better chance of catching some Tropo. The August dates have been chosen to avoid BATC events, but they have not been determined yet.<br /> <br /> All BATC Activity Weekends include 23cm in addition to the bands listed below and run for the full 48 hours GMT or BST as appropriate. Veron Contests run from 12:00 UTC Saturday to 18:00 UTC Sunday. Veron ATV Contests include DATV, whereas DATV Contests are exclusively digital.<br /> <br /> Published 20/02/2026<br /> <br /> Clive G3GJA, BATC Contest Manager</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:Activity_weekends.jpg&diff=12121 2026-02-20T14:05:22Z

<p>G3gja: G3gja uploaded a new version of File:Activity weekends.jpg</p> <hr /> <div>2026 Activity Weekends</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:Activity_weekends.jpg&diff=12120 2026-02-20T14:00:50Z

<p>G3gja: </p> <hr /> <div>2026 Activity Weekends</div>

G3gja https://wiki.batc.org.uk/index.php?title=ATV_Repeater_Map&diff=12114 2026-01-27T23:01:09Z

<p>G3gja: </p> <hr /> <div>Thomas DL5BCA has created a website [http://atv-repeatermap.com ATV-RepeaterMap.com] to make it easier for ATV enthusiasts to find information about ATV repeaters.<br /> <br /> [[File:01.jpg|ATV-RepeaterMap.com]]<br /> <br /> <br /> The tools in the top left of the screen control zoom level, full screen mode and filtering by country. The area displayed can be changed by dragging the mouse across the screen with the left button held down.<br /> <br /> <br /> Clicking on a repeater pin opens up an information window, such as this one for GB3EY:<br /> <br /> <br /> [[File:02.jpg|Information Panel]]<br /> <br /> <br /> Although primarily a German language website, some of the important functions have been labelled in both German and English. At the time of writing there are 52 German and one UK repeater listed. Hopefully, more UK repeater keepers will post their repeater's details.<br /> <br /> <br /> The website has a form [https://atv-repeatermap.com/?page_id=2 Kontakt]for repeater keepers to enter the details of their unit such as QTH locator, WSG84 co-ordinates, input and output frequencies, modes supported and any other useful information that might help a potential user of the repeater.<br /> <br /> <br /> [[File:03.jpg|Contact form]]<br /> <br /> <br /> The form can be used for new registrations, edits, deletions and messages.<br /> <br /> <br /> Contact Thomas DL5BCA via email to '''dl5bca @ darc.de''' for more information (remove the extra spaces in the address).</div>

G3gja https://wiki.batc.org.uk/index.php?title=ATV_Repeater_Map&diff=12113 2026-01-27T23:00:48Z

<p>G3gja: </p> <hr /> <div>Thomas DL5BCA has created a website [http://atv-repeatermap.com ATV-RepeaterMap.com] to make it easier for ATV enthusiasts to find information about ATV repeaters.<br /> <br /> [[File:01.jpg|ATV-RepeaterMap.com]]<br /> <br /> <br /> The tools in the top left of the screen control zoom level, full screen mode and filtering by country. The area displayed can be changed by dragging the mouse across the screen with the left button held down.<br /> <br /> <br /> Clicking on a repeater pin opens up an information window, such as this one for GB3EY:<br /> <br /> <br /> [[File:02.jpg|Information Panel]]<br /> <br /> <br /> Although primarily a German language website, some of the important functions have been labelled in both German and English. At the time of writing there are 52 German and one UK repeater listed. Hopefully, more UK repeater keepers will post their repeater's details.<br /> <br /> <br /> The website has a form [https://atv-repeatermap.com/?page_id=2 Kontakt]for repeater keepers to enter the details of their unit such as QTH locator, WSG84 co-ordinates, input and output frequencies, modes supported and any other useful information that might help a potential user of the repeater.<br /> <br /> <br /> [[File:03.jpg|Contact form]]<br /> <br /> <br /> The form can be used for new registrations, edits, deletions and messages.<br /> <br /> Contact Thomas DL5BCA via email to '''dl5bca @ darc.de''' for more information (remove the extra spaces in the address).</div>

G3gja https://wiki.batc.org.uk/index.php?title=ATV_Repeater_Map&diff=12112 2026-01-27T23:00:18Z

<p>G3gja: </p> <hr /> <div>Thomas DL5BCA has created a website [http://atv-repeatermap.com ATV-RepeaterMap.com] to make it easier for ATV enthusiasts to find information about ATV repeaters.<br /> <br /> [[File:01.jpg|ATV-RepeaterMap.com]]<br /> <br /> <br /> The tools in the top left of the screen control zoom level, full screen mode and filtering by country. The area displayed can be changed by dragging the mouse across the screen with the left button held down.<br /> <br /> Clicking on a repeater pin opens up an information window, such as this one for GB3EY:<br /> <br /> <br /> [[File:02.jpg|Information Panel]]<br /> <br /> <br /> Although primarily a German language website, some of the important functions have been labelled in both German and English. At the time of writing there are 52 German and one UK repeater listed. Hopefully, more UK repeater keepers will post their repeater's details.<br /> <br /> <br /> The website has a form [https://atv-repeatermap.com/?page_id=2 Kontakt]for repeater keepers to enter the details of their unit such as QTH locator, WSG84 co-ordinates, input and output frequencies, modes supported and any other useful information that might help a potential user of the repeater.<br /> <br /> <br /> [[File:03.jpg|Contact form]]<br /> <br /> <br /> The form can be used for new registrations, edits, deletions and messages.<br /> <br /> Contact Thomas DL5BCA via email to '''dl5bca @ darc.de''' for more information (remove the extra spaces in the address).</div>

G3gja https://wiki.batc.org.uk/index.php?title=ATV_Repeater_Map&diff=12111 2026-01-27T22:52:42Z

<p>G3gja: </p> <hr /> <div>Thomas DL5BCA has created a website [http://atv-repeatermap.com ATV-RepeaterMap.com] to make it easier for ATV enthusiasts to find information about ATV repeaters.<br /> <br /> [[File:01.jpg|ATV-RepeaterMap.com]]<br /> <br /> <br /> Clicking on a repeater pin opens up an information window, such as this one for GB3EY:<br /> <br /> <br /> [[File:02.jpg|Information Panel]]<br /> <br /> <br /> Although primarily a German language website, some of the important functions have been labelled in both German and English. At the time of writing there are 52 German and one UK repeater listed. Hopefully, more UK repeater keepers will post their repeater's details.<br /> <br /> <br /> The website has a form [https://atv-repeatermap.com/?page_id=2 Kontakt]for repeater keepers to enter the details of their unit such as QTH locator, WSG84 co-ordinates, input and output frequencies, modes supported and any other useful information that might help a potential user of the repeater.<br /> <br /> <br /> [[File:03.jpg|Contact form]]<br /> <br /> <br /> The form can be used for new registrations, edits, deletions and messages.<br /> <br /> Contact Thomas DL5BCA via email to dl5bca @ darc.de for more information (remove the extra spaces in the address).</div>

G3gja https://wiki.batc.org.uk/index.php?title=ATV_Repeater_Map&diff=12110 2026-01-27T22:40:23Z

<p>G3gja: </p> <hr /> <div>Thomas DL5BCA has created a website [http://atv-repeatermap.com ATV-RepeaterMap.com] to make it easier for ATV enthusiasts to find information about ATV repeaters.<br /> <br /> [[File:01.jpg|ATV-RepeaterMap.com]]<br /> <br /> <br /> Clicking on a repeater pin opens up an information window, such as this one for GB3EY:<br /> <br /> <br /> [[File:02.jpg|Information Panel]]<br /> <br /> Although primarily a German language website, some of the important functions have been labelled in both German and English. At the time of writing there are 52 German and one UK repeater listed. Hopefully, more UK repeater keepers will post their repeater's details.<br /> <br /> The website has a form [https://atv-repeatermap.com/?page_id=2 Kontakt]for repeater keepers to enter the details of their unit such as QTH locator, WSG84 co-ordinates, input and output frequencies, modes supported and any other useful information that might help a potential user of the repeater.<br /> <br /> <br /> [[File:03.jpg|Contact form]]<br /> <br /> The form can be used for new registrations, edits, deletions and messages.</div>

G3gja https://wiki.batc.org.uk/index.php?title=ATV_Repeater_Map&diff=12109 2026-01-27T22:33:51Z

<p>G3gja: </p> <hr /> <div>Thomas DL5BCA has created a website [http://atv-repeatermap.com ATV-RepeaterMap.com] to make it easier for ATV enthusiasts to find information about ATV repeaters.<br /> <br /> [[File:01.jpg|ATV-RepeaterMap.com]]<br /> <br /> <br /> Clicking on a repeater pin opens up an information window, such as this one for GB3EY:<br /> <br /> <br /> [[File:02.jpg|Information Panel]]<br /> <br /> <br /> The website has a form [https://atv-repeatermap.com/?page_id=2 Kontakt]for repeater keepers to enter the details of their unit such as QTH locator, WSG84 co-ordinates, input and output frequencies, modes supported and any other useful information that might help a potential user of the repeater.<br /> <br /> <br /> [[File:03.jpg|thumb|Contact form]]</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:03.jpg&diff=12108 2026-01-27T22:33:28Z

<p>G3gja: </p> <hr /> <div>Contact form</div>

G3gja https://wiki.batc.org.uk/index.php?title=ATV_Repeater_Map&diff=12107 2026-01-27T22:25:13Z

<p>G3gja: Created page with &quot;Thomas DL5BCA has created a website [http://atv-repeatermap.com ATV-RepeaterMap.com] to make it easier for ATV enthusiasts to find information about ATV repeaters. File:01....&quot;</p> <hr /> <div>Thomas DL5BCA has created a website [http://atv-repeatermap.com ATV-RepeaterMap.com] to make it easier for ATV enthusiasts to find information about ATV repeaters.<br /> <br /> [[File:01.jpg|ATV-RepeaterMap.com]]<br /> <br /> <br /> Clicking on a repeater pin opens up an information windows, such as this one for GB3EY:<br /> <br /> <br /> [[File:02.jpg|Information Panel]]<br /> <br /> <br /> The website has a form [https://atv-repeatermap.com/?page_id=2 Kontakt]for repeater keepers to enter the details of their unit such as QTH locator, WSG84 co-ordinates, input and output frequencies, modes supported and any other useful information that might help a potential user of the repeater.</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:02.jpg&diff=12106 2026-01-27T22:23:49Z

<p>G3gja: </p> <hr /> <div>Information panel</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:01.jpg&diff=12105 2026-01-27T22:09:50Z

<p>G3gja: </p> <hr /> <div>Start page of ATV-RepeaterMap</div>

G3gja https://wiki.batc.org.uk/index.php?title=BATC_Wiki&diff=12104 2026-01-27T21:57:55Z

<p>G3gja: </p> <hr /> <div>'''Welcome to the British Amateur Television Club Wiki''' - the place to find information on all Amateur Television related equipment and projects. For details on how to join the BATC, the member's shop and CQ-TV archive and download visit the BATC website https://batc.org.uk/<br /> <br /> This is your site, developed by the BATC for use by the worldwide ATV community - any information which you feel is of use to others can be put on the Wiki but editing accounts are only available to trusted members. Please get in touch with any member of the BATC Committee if you have something of interest to post.<br /> <br /> * New to Amateur TV - Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> * For details on the Portsdown DATV transmit and receive system go to [[The Portsdown DATV transceiver system|the Portsdown pages]]<br /> <br /> * For information on the MiniTiouner USB DATV receiver go to [[MiniTioune|MiniTiouner]]<br /> <br /> * For the DATV equipment capability list go to [[DATV equipment capability|https://wiki.batc.org.uk/DATV_equipment_capability]]<br /> <br /> <br /> == Contents ==<br /> * [[Registering]] on the BATC wiki<br /> <br /> == New to Amateur TV? ==<br /> * Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> ==BATC Information and services==<br /> * [[Joining the BATC]]<br /> <br /> * [[Renewing your membership]]<br /> <br /> * The [[BATC Privacy statement and data protection policy]]<br /> <br /> * The [[BATC forum]]<br /> <br /> * The [[BATC shop]]<br /> <br /> * The [[The_new_streamer|BATC streamer]]<br /> <br /> * The [[BATC archive]] Collection of photos and documents from BATC's past<br /> <br /> * The [[new BATC website|BATC website]]<br /> <br /> == BATC projects ==<br /> * [[The Portsdown Transmitter]] - the BATC's Raspberry Pi-based DATV Transmitter<br /> * [[MiniTioune]] - the DATV DVB-S / S2 receiver project<br /> * [[Ryde Receiver]] - Dedicated DATV set top box project<br /> * [[Knucker]] - Variable bandwidth DVB-T project<br /> * [[Advanced receiver hardware]] - Details of the BATC advanced receiver hardware.<br /> * [[WinterHill Receiver Project]] - Multi-channel DVB-S / S2 project<br /> * [[BATC Video Source]] - The Raspberry Pi-based composite video source described in CQ-TV 270<br /> * [[BATC HDMI Source]] - The Raspberry Pi-based HDMI video source to be described in CQ-TV 280<br /> * [[Digilite]] - The original home build DATV construction project<br /> * [[Repeater Controller]] - The BATC ATV Repeater Controller using a Raspberry Pi 4<br /> * [[ARISS Digital Communication System]]<br /> * [[PicoTuner]] - A USB tuner for DATV using the RpiPico as the USB interface<br /> <br /> == CQ-TV Magazine ==<br /> * [[Index of articles]]<br /> * [[Archive edition|Archive editions]] download<br /> * [[BATC_Software_Library]] for project downloads<br /> <br /> ==BATC Event Streaming Equipment==<br /> * [[Equipment Description]]<br /> <br /> == BATC Conventions ==<br /> <br /> Presentations from previous conventions can be found on this page [[BATC Conventions]]<br /> <br /> ==National and International Events==<br /> <br /> * [[ HAM RADIO 2018 ]] ATV Presentations from HAM RADIO 2018 at Friedrichhsafen.<br /> <br /> * [[ HAM RADIO 2019 ]] ATV Presentations from HAM RADIO 2019 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2022 ]] ATV Presentations from HAM RADIO 2022 at Friedrichshafen.<br /> <br /> * [[ RSGB Convention 2022 ]] ATV Presentation at the 2022 RSGB Convention 2022<br /> <br /> * [[ HAM RADIO 2023 ]] ATV Presentations from HAM RADIO 2023 at Friedrichshafen.<br /> <br /> * [[ EMFcamp 2024 ]] BATC / AMSAT-UK / UKuG demonstration village at EMFcamp 2024.<br /> <br /> * [[ HAM RADIO 2024 ]] ATV Presentations from HAM RADIO 2024 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2025 ]] ATV Presentations from HAM RADIO 2025 at Friedrichshafen.<br /> <br /> ==HAMTV on the ISS==<br /> [[HAMTV from the ISS]]<br /> <br /> == Getting on the air with ATV ==<br /> ===The ATV bands===<br /> * [[29 MHz]]<br /> * [[51 MHz]]<br /> * [[71 MHz]]<br /> * [[146 MHz RB-TV]]<br /> * [[70cms Analogue TV]]<br /> * [[70cm DATV]]<br /> * [[23cms ATV]]<br /> * [[13cms]]<br /> * [[3.4 GHz DATV]]<br /> * [[5.6 GHz]]<br /> * [[10 GHz]]<br /> * [[:Media:ATV on 5.6 10 and 24 Ghz.pdf|April 2018 Presentation to MMRT about ATV on 5.6 10 and 24 GHz]]<br /> <br /> ===The different ATV modes===<br /> * [[Reduced bandwidth TV]] (RB-TV)<br /> * [[The Effect of FEC]]<br /> <br /> ===Equipment Options===<br /> * [[DATV transmitting Equipment]]<br /> <br /> ==Advanced encoding / input options==<br /> <br /> Details of advanced transmission configurations, primarily for H265,and video production software.<br /> <br /> * [[Feeding Video to Portsdown from vMix|Vmix output in to Portsdown IPTS input]]<br /> * [[OBS - Open Broadcast Studio|OBS output in to Portsdown IPTS input]]<br /> * [[Using GTX10xx Graphics card encoder with OBS]]<br /> * [[Custom_DATV_Firmware_for_the_Pluto|Using the Pluto for DATV]]<br /> * [[Jetson_Nano|Using the Jetson Nano with Portsdown]]<br /> <br /> == Operating ==<br /> * [[DATV equipment capability]] - Wiki page documenting the capabilities of common DATV transmit and receive equipment.<br /> * [[ATV standards]] - a list of standards used by ATV operators including FM bandwidths, DATV PIDs, symbol rates and FEC<br /> * [[EMF Compliance]] - information about EMF compliance for ATV and Microwave Operation<br /> * [[Directory of portable sites]] suitable for ATV and microwave operation<br /> * [https://www.google.com/maps/d/u/0/edit?mid=1VeLnRRbLwloDTL2i9-HE2sxqL0c&amp;ll=52.95536632179757%2C-0.49709419999999227&amp;z=7 Google map] showing possible portable operating sites<br /> * [[Mapping tools]] including finding the QRA locator of a site, UK postcode to Lat and Long conversion and a topographic overlay for Google maps<br /> * [[Propagation tools]]<br /> * [[UK ATV DX Records]] - a list of Known DX Records for the UK<br /> * [[2025 Activity Weekends]]<br /> * [[Christmas 2025 Repeater Contest &amp; Activity Ladder|Christmas 2025 repeater Contest &amp; Activity Ladder]]<br /> * [[2025 Activity Ladders]]<br /> * [[IARU ATV contest]] - How to enter the annual international TV contest<br /> * [[IARU ATV contest 2023 International Results]] - International Results for the June 2023 IARU Contest<br /> * [[IARU ATV contest 2022 International Results]] - International Results for the June 2022 IARU Contest<br /> * [[IARU ATV contest 2021 International Results]] - International Results for the June 2021 IARU Contest<br /> * [[IARU ATV contest 2020 International Results]] - International Results for the June 2020 IARU Contest<br /> * [[IARU ATV contest 2019 International Results]] - International Results for the June 2019 IARU Contest<br /> * [[IARU ATV contest 2018 Results]] - UK Results for the June 2018 IARU and BATC Contests<br /> * [[IARU ATV contest 2018 International Results]] - International Results for the June 2018 IARU Contest<br /> * [[September 2019 BATC Low Band Contest]]<br /> <br /> ==ATV repeaters==<br /> * [[ATV Repeater Map]]<br /> * [[UK ATV repeaters]]<br /> * [[USA ATV repeaters]]<br /> * [[Australian TV repeaters]]<br /> <br /> * [[Technical topics for ATV repeater builders]]<br /> <br /> ==Es'hail-2==<br /> * [[Es'hail-2 Basic Information|Getting started, LNBs and aligning a dish]]<br /> <br /> * [[Es'hail-2 Ground Station|Es'hail-2 BATC WebSDR &amp; DATV Spectrum Monitor]]<br /> <br /> * [[Es'hail-2 DATV Bandplan]]<br /> <br /> * [[Es'hail-2_LNBs_and_Antennaes|Es'hail-2_LNBs]]<br /> <br /> * [[Transmitting_Oscar_100_DATV_signals|Es'hail-2 Transmitters]]<br /> <br /> * [[Es'hail-2 Antennaes]]<br /> <br /> * [[Es'hail-2 conference transmissions]]<br /> <br /> <br /> ==ATV projects==<br /> * [[Adalm Pluto]] - Collection of information on using the Adalm Pluto for DATV<br /> * [[The MacGuffin Project]] - Collection of tools used to create an automated multi-band ATV system <br /> * [[Receiver upconverters]] - Details of upconverters to receive 146 and 437 MHz on STB and MiniTioune<br /> * [[Jetson Nano]] - Third generation computer-based DATV Transmitter<br /> * [[DTX1 TS]] - interface board to take in TS streams to the DTX1<br /> * [[RpiDATV]] - software for the Rpi<br /> * [[RBTVMOD]] - variable rate RB-TV mdulator for the Rpi<br /> * [[DATVExpress]] - SDR hardware based DATV transmitter covering 70 - 2450 MHz<br /> * [[PE43703 2025]] - PE43703 variable attenuator project 2025 version<br /> * [[PE4302]] - PE4302 variable attenuator project<br /> * [[ADF435x PIC]] - PIC controllers for Chinese ADF4350/4351 boards<br /> * [[DigiTwist]] - an experimental 2 axis satellite tracker<br /> * [[G4WIM PA controller]] - an advanced PA controller design by G4WIM published in CQ-TV 265<br /> * [[WinterHill Receiver Project]]<br /> * [[Tilt-O-Matic]] Pan and tilt head for surveyor tripods<br /> * [[Gerber Files]] Index of Gerber (PCB) files used by BATC and Members' Projects<br /> <br /> == Deutschsprachiges Wiki ==<br /> <br /> * Portsdown DATV Projekt - Deutschsprachiges Wiki<br /> * Minitioune(r) - Deutschsprachiges Wiki<br /> <br /> == Useful Circuits and notes ==<br /> * [[Antenna changeover relays]] - Notes on suitable antenna change over relays for ATV use.<br /> * [[Filters]] - Collection of links and designs for that most critical but over looked component!<br /> * [[Pre-amps]] - Notes, suppliers and circuits of pre-amplifiers suitable for ATV<br /> * [[Power amplifiers]] - Notes, suppliers and circuits of power amplifiers suitable for ATV<br /> * [[Video circuits]] - Notes and circuits for video processing<br /> * [[Satellite receiver tuning offsets]] - Note on how to set up a satellite receiver to directly receive L band signals.<br /> * [[Using ex-satellite dishes]] - Notes on how to find the feed point of a dish and designs for feeds to use<br /> <br /> == ATV Equipment manuals and schematics ==<br /> * [[Bob Platts G8OZP]] Circuits and documentation for the Bob Platts range of equipment<br /> * [[Comtech module]] - 23cms and 13cms ATV Tx and Rx circuits and guides<br /> * [[Solent ATV units]] - Tx and Rx circuits and information<br /> * [[Wood &amp; Douglas FM TV equipment]] - Circuits, pcb layouts and information<br /> * [[LMW Electronics]] - Circuits, pcb layouts and information<br /> * [[Fortop]] - Circuits, pcb layouts and information<br /> * [[Glencom]] - VC-510 VHF to L band up converter circuit diagram and modifications<br /> * [[Global communications]] - Hand drawn circuit of tuneable 70 / 140 MHz to L band block up converter<br /> * [[Jaybeam]] - Details of many Jaybeam aerials<br /> <br /> == Ex commercial broadcast equipment manuals ==<br /> * [[NDS System 3000]]<br /> * [[NDS Alteia rx]]<br /> <br /> == Test equipment Information ==<br /> For HP and Agilent equipment see the io group discussion at [https://groups.io/g/HP-Agilent-Keysight-equipment]<br /> <br /> == Other equipment information related to ATV ==</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:Christmas_2025_BATC_REPEATER_ACTIVITY_CONTEST_and_ACTIVITY_CHALLENGE_RULES.pdf&diff=12097 2025-12-26T13:31:01Z

<p>G3gja: G3gja uploaded a new version of File:Christmas 2025 BATC REPEATER ACTIVITY CONTEST and ACTIVITY CHALLENGE RULES.pdf</p> <hr /> <div>File uploaded with MsUpload</div>

G3gja https://wiki.batc.org.uk/index.php?title=Christmas_2025_Repeater_Contest_%26_Activity_Ladder&diff=12096 2025-12-26T11:47:48Z

<p>G3gja: </p> <hr /> <div>The Christmas Repeater Contest 2025 will run from the 24th December 2025 through to the 2nd January 2025 inclusive. The aim is to increase ATV repeater use. On offer is a £100 prize and a BATC Trophy for the repeater with the most contacts recorded.<br /> <br /> The Christmas Activity ladder runs concurrently with the the Repeater Contest. Use the Repeater Contest contacts and any non-repeater contacts you make to add points to your score. There are no cash prizes for the winner of the Christmas Activity Ladder Challenge, but the first placed station will receive a personalised BATC Trophy and the second placed station will receive a certificate. Your name and callsign will appear in CQ-TV with attached bragging rights, kudos etc.! Many repeater groups have been affected by the current economic conditions and increased electricity prices, so here’s a chance to help your local ATV repeater and stir up some activity at the same time.<br /> <br /> The on-line entry and ladder system as used for last year's Contest on the BATC website will be used. The Ladder has fields for you to enter the points claimed and the repeater's callsign.<br /> <br /> The rules are available in PDF form here: [[:File:Christmas 2025 BATC REPEATER ACTIVITY CONTEST and ACTIVITY CHALLENGE RULES.pdf]] <br /> <br /> Christmas 2025 BATC REPEATER ACTIVITY CONTEST and ACTIVITY CHALLENGE RULES<br /> <br /> 1. Introduction. The main object of an Amateur Television Contest is to promote ATV activity. Anyone interested in ATV, whether they are members of the British Amateur Television Club or not, are welcome to take part.<br /> <br /> 2. Eligibility. BATC Contests are open to all licensed radio amateurs who are equipped to transmit pictures by analogue or digital Fast Scan.<br /> <br /> 3. Dates and Times. The contest will run from 0000hrs GMT on the 24th December 2025 to 2359hrs GMT on the 2nd January 2026.<br /> <br /> 4. Location. The operating location must be within the terms of your licence. If operating away from your main station, please get the permission of the landowner. It is essential that you adhere to any local and national COVID restrictions in force.<br /> <br /> 5. Frequencies. Within the allocated segments of the 70cm, 23cm, 13cm, 9cm, 6cm, 3cm and 1.5cm bands for FSTV. The NoV bands of 71MHz and 146.5MHz are also eligible. Operation must be via repeaters to be valid for the Repeater Contest.<br /> <br /> 6. Power. Output power must not exceed that set out in the terms of your licence.<br /> <br /> 7. Exchange. Both a CALL SIGN and a FOUR-FIGURE code number (not consecutive &amp; four different digits) must be conveyed via video and received via the repeater by another station. Reception of the repeater can either be via the RF output or the repeater's streaming channel. The same exchange should be used for direct contacts for points to be valid in the Challenge.<br /> <br /> Confirmation of reception is by transmitting back the sum of the code numbers (not the actual transmitted number) on the repeater or on the talk-back channel. Confirmation via the streaming chat channel or other non-radio means is allowed as is confirmation by another voice repeater (analogue or digital).<br /> <br /> Please note that all four digits in the contest number should be different and not consecutive. The numbers must be different for each band, e.g. these numbers are OK: 2741, 4820, etc, these are not:- 1111, 1138, 1381, 1234 etc. Reports should be sent using a 1-5 video quality report and a serial number, starting at 001 for each band.<br /> <br /> 8. Use of Internet streaming: a valid contact requires one station of a QSO to be using RF by either transmitting into the the repeater or receiving the repeater's RF output. Only the station originating the numbers can claim points, but in the case of a stream input to a repeater, only the distance travelled by RF can be claimed for points. To do this, the streaming-in station must change their QTH locator to that of the repeater on the scoreboard for that contact only. Stream to stream contacts are not permitted..<br /> <br /> 9. Scoring. The following multipliers should be used: 71MHz &amp; 146MHz @ 5 points per km, 70cm @ 3 points per km, 23cm @ 2 points per km. Contacts on higher bands @ 5 points per km.<br /> <br /> For the Christmas Repeater Activity Contest, you can claim points for repeating contacts on each day of the contest.<br /> <br /> A single callsign can be worked via a repeater from up to two locations with unique QTH Locators, on the same day, band and with the same callsigns. For example, you can work into the repeater from home and then you can go out portable to another location and the points earned /P can be claimed for working the same stations on the same bands earlier in the day from the home station. You may not claim points for multiple contacts with the same station via the same repeater on the same day on different bands for any one unique location. RF or Internet links between two repeaters do not count for additional points.<br /> <br /> For the Challenge, on any day you may work the same station on different bands and claim points for each contact from any location with a unique QTH Locator.<br /> <br /> 10. Distance Calculations. All distances are calculated by the online entry program. For scoring purposes, all valid contacts shall be deemed to have taken place over a distance of at least 5 km, even if the two stations or the repeater in the contact have the same or adjacent locators. Scoring is be based on the distance between the centres of location squares, not map distance. Full 6-character length QTH locators must be used.<br /> <br /> 11. On-line logging. Use the Activity Ladder page on the BATC website here: https://batc.org.uk/contests/xmas-ladder and fill in the boxes to register your entry. On completion you will receive an email containing two unique links for each ladder. Clicking the links will take you your personal entry website where you can enter the details for each contact as appropriate.<br /> <br /> 12. Receive only section. Send an e-mail to the Contest Manager with log sheet attached giving your Call sign / BRS No. and name and address, Band, Date/Time, Call sign of station seen, Repeater Callsign, Repeater Locator, Locator of other station, Code number received, km from your station to repeater, km from repeater to distant station and points claimed.<br /> <br /> 13. Disputes. The decision of the contest manager and/or the BATC Committee is final.<br /> <br /> 14. Spirit of the Contest. Don’t leave your video transmission on any longer than necessary. Let other stations use the repeater / frequency as well. Contests mean activity and good fun, join in and, even if you only work one or two stations, please use the Ladder to record your activity.<br /> <br /> 15. Declaration of Interest. Although acting as contest manager, I reserve the right to take part.<br /> <br /> 16. Submission of entries. Transmitting section entries will only be accepted via the on-line Activity Ladder web page. No paper or spreadsheet logs will be accepted except for the Receive section.<br /> <br /> 17. Contact Address. Queries can be submitted to: C. Reynolds, 49 Westborough Way, Anlaby Common, East Riding of Yorkshire HU4 7SW. Email: contests@batc.tv<br /> <br /> Clive Reynolds G3GJA / G8EQZ BATC Contest Manager 6 December 2025</div>

G3gja https://wiki.batc.org.uk/index.php?title=BATC_Wiki&diff=12057 2025-12-06T13:04:27Z

<p>G3gja: /* Operating */</p> <hr /> <div>'''Welcome to the British Amateur Television Club Wiki''' - the place to find information on all Amateur Television related equipment and projects. For details on how to join the BATC, the member's shop and CQ-TV archive and download visit the BATC website https://batc.org.uk/<br /> <br /> This is your site, developed by the BATC for use by the worldwide ATV community - any information which you feel is of use to others can be put on the Wiki but editing accounts are only available to trusted members. Please get in touch with any member of the BATC Committee if you have something of interest to post.<br /> <br /> * New to Amateur TV - Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> * For details on the Portsdown DATV transmit and receive system go to [[The Portsdown DATV transceiver system|the Portsdown pages]]<br /> <br /> * For information on the MiniTiouner USB DATV receiver go to [[MiniTioune|MiniTiouner]]<br /> <br /> * For the DATV equipment capability list go to [[DATV equipment capability|https://wiki.batc.org.uk/DATV_equipment_capability]]<br /> <br /> <br /> == Contents ==<br /> * [[Registering]] on the BATC wiki<br /> <br /> == New to Amateur TV? ==<br /> * Get the basics on our [[Getting Started|Getting Started page]]<br /> <br /> ==BATC Information and services==<br /> * [[Joining the BATC]]<br /> <br /> * [[Renewing your membership]]<br /> <br /> * The [[BATC Privacy statement and data protection policy]]<br /> <br /> * The [[BATC forum]]<br /> <br /> * The [[BATC shop]]<br /> <br /> * The [[The_new_streamer|BATC streamer]]<br /> <br /> * The [[BATC archive]] Collection of photos and documents from BATC's past<br /> <br /> * The [[new BATC website|BATC website]]<br /> <br /> == BATC projects ==<br /> * [[The Portsdown Transmitter]] - the BATC's Raspberry Pi-based DATV Transmitter<br /> * [[MiniTioune]] - the DATV DVB-S / S2 receiver project<br /> * [[Ryde Receiver]] - Dedicated DATV set top box project<br /> * [[Knucker]] - Variable bandwidth DVB-T project<br /> * [[Advanced receiver hardware]] - Details of the BATC advanced receiver hardware.<br /> * [[WinterHill Receiver Project]] - Multi-channel DVB-S / S2 project<br /> * [[BATC Video Source]] - The Raspberry Pi-based composite video source described in CQ-TV 270<br /> * [[BATC HDMI Source]] - The Raspberry Pi-based HDMI video source to be described in CQ-TV 280<br /> * [[Digilite]] - The original home build DATV construction project<br /> * [[Repeater Controller]] - The BATC ATV Repeater Controller using a Raspberry Pi 4<br /> * [[ARISS Digital Communication System]]<br /> * [[PicoTuner]] - A USB tuner for DATV using the RpiPico as the USB interface<br /> <br /> == CQ-TV Magazine ==<br /> * [[Index of articles]]<br /> * [[Archive edition|Archive editions]] download<br /> * [[BATC_Software_Library]] for project downloads<br /> <br /> ==BATC Event Streaming Equipment==<br /> * [[Equipment Description]]<br /> <br /> == BATC Conventions ==<br /> <br /> Presentations from previous conventions can be found on this page [[BATC Conventions]]<br /> <br /> ==National and International Events==<br /> <br /> * [[ HAM RADIO 2018 ]] ATV Presentations from HAM RADIO 2018 at Friedrichhsafen.<br /> <br /> * [[ HAM RADIO 2019 ]] ATV Presentations from HAM RADIO 2019 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2022 ]] ATV Presentations from HAM RADIO 2022 at Friedrichshafen.<br /> <br /> * [[ RSGB Convention 2022 ]] ATV Presentation at the 2022 RSGB Convention 2022<br /> <br /> * [[ HAM RADIO 2023 ]] ATV Presentations from HAM RADIO 2023 at Friedrichshafen.<br /> <br /> * [[ EMFcamp 2024 ]] BATC / AMSAT-UK / UKuG demonstration village at EMFcamp 2024.<br /> <br /> * [[ HAM RADIO 2024 ]] ATV Presentations from HAM RADIO 2024 at Friedrichshafen.<br /> <br /> * [[ HAM RADIO 2025 ]] ATV Presentations from HAM RADIO 2025 at Friedrichshafen.<br /> <br /> ==HAMTV on the ISS==<br /> [[HAMTV from the ISS]]<br /> <br /> == Getting on the air with ATV ==<br /> ===The ATV bands===<br /> * [[29 MHz]]<br /> * [[51 MHz]]<br /> * [[71 MHz]]<br /> * [[146 MHz RB-TV]]<br /> * [[70cms Analogue TV]]<br /> * [[70cm DATV]]<br /> * [[23cms ATV]]<br /> * [[13cms]]<br /> * [[3.4 GHz DATV]]<br /> * [[5.6 GHz]]<br /> * [[10 GHz]]<br /> * [[:Media:ATV on 5.6 10 and 24 Ghz.pdf|April 2018 Presentation to MMRT about ATV on 5.6 10 and 24 GHz]]<br /> <br /> ===The different ATV modes===<br /> * [[Reduced bandwidth TV]] (RB-TV)<br /> * [[The Effect of FEC]]<br /> <br /> ===Equipment Options===<br /> * [[DATV transmitting Equipment]]<br /> <br /> ==Advanced encoding / input options==<br /> <br /> Details of advanced transmission configurations, primarily for H265,and video production software.<br /> <br /> * [[Feeding Video to Portsdown from vMix|Vmix output in to Portsdown IPTS input]]<br /> * [[OBS - Open Broadcast Studio|OBS output in to Portsdown IPTS input]]<br /> * [[Using GTX10xx Graphics card encoder with OBS]]<br /> * [[Custom_DATV_Firmware_for_the_Pluto|Using the Pluto for DATV]]<br /> * [[Jetson_Nano|Using the Jetson Nano with Portsdown]]<br /> <br /> == Operating ==<br /> * [[DATV equipment capability]] - Wiki page documenting the capabilities of common DATV transmit and receive equipment.<br /> * [[ATV standards]] - a list of standards used by ATV operators including FM bandwidths, DATV PIDs, symbol rates and FEC<br /> * [[EMF Compliance]] - information about EMF compliance for ATV and Microwave Operation<br /> * [[Directory of portable sites]] suitable for ATV and microwave operation<br /> * [https://www.google.com/maps/d/u/0/edit?mid=1VeLnRRbLwloDTL2i9-HE2sxqL0c&amp;ll=52.95536632179757%2C-0.49709419999999227&amp;z=7 Google map] showing possible portable operating sites<br /> * [[Mapping tools]] including finding the QRA locator of a site, UK postcode to Lat and Long conversion and a topographic overlay for Google maps<br /> * [[Propagation tools]]<br /> * [[UK ATV DX Records]] - a list of Known DX Records for the UK<br /> * [[2025 Activity Weekends]]<br /> * [[Christmas 2025 Repeater Contest &amp; Activity Ladder|Christmas 2025 repeater Contest &amp; Activity Ladder]]<br /> * [[2025 Activity Ladders]]<br /> * [[IARU ATV contest]] - How to enter the annual international TV contest<br /> * [[IARU ATV contest 2023 International Results]] - International Results for the June 2023 IARU Contest<br /> * [[IARU ATV contest 2022 International Results]] - International Results for the June 2022 IARU Contest<br /> * [[IARU ATV contest 2021 International Results]] - International Results for the June 2021 IARU Contest<br /> * [[IARU ATV contest 2020 International Results]] - International Results for the June 2020 IARU Contest<br /> * [[IARU ATV contest 2019 International Results]] - International Results for the June 2019 IARU Contest<br /> * [[IARU ATV contest 2018 Results]] - UK Results for the June 2018 IARU and BATC Contests<br /> * [[IARU ATV contest 2018 International Results]] - International Results for the June 2018 IARU Contest<br /> * [[September 2019 BATC Low Band Contest]]<br /> <br /> ==ATV repeaters==<br /> * [[UK ATV repeaters]]<br /> * [[USA ATV repeaters]]<br /> * [[Australian TV repeaters]]<br /> <br /> * [[Technical topics for ATV repeater builders]]<br /> <br /> ==Es'hail-2==<br /> * [[Es'hail-2 Basic Information|Getting started, LNBs and aligning a dish]]<br /> <br /> * [[Es'hail-2 Ground Station|Es'hail-2 BATC WebSDR &amp; DATV Spectrum Monitor]]<br /> <br /> * [[Es'hail-2 DATV Bandplan]]<br /> <br /> * [[Es'hail-2_LNBs_and_Antennaes|Es'hail-2_LNBs]]<br /> <br /> * [[Transmitting_Oscar_100_DATV_signals|Es'hail-2 Transmitters]]<br /> <br /> * [[Es'hail-2 Antennaes]]<br /> <br /> * [[Es'hail-2 conference transmissions]]<br /> <br /> <br /> ==ATV projects==<br /> * [[Adalm Pluto]] - Collection of information on using the Adalm Pluto for DATV<br /> * [[The MacGuffin Project]] - Collection of tools used to create an automated multi-band ATV system <br /> * [[Receiver upconverters]] - Details of upconverters to receive 146 and 437 MHz on STB and MiniTioune<br /> * [[Jetson Nano]] - Third generation computer-based DATV Transmitter<br /> * [[DTX1 TS]] - interface board to take in TS streams to the DTX1<br /> * [[RpiDATV]] - software for the Rpi<br /> * [[RBTVMOD]] - variable rate RB-TV mdulator for the Rpi<br /> * [[DATVExpress]] - SDR hardware based DATV transmitter covering 70 - 2450 MHz<br /> * [[PE43703 2025]] - PE43703 variable attenuator project 2025 version<br /> * [[PE4302]] - PE4302 variable attenuator project<br /> * [[ADF435x PIC]] - PIC controllers for Chinese ADF4350/4351 boards<br /> * [[DigiTwist]] - an experimental 2 axis satellite tracker<br /> * [[G4WIM PA controller]] - an advanced PA controller design by G4WIM published in CQ-TV 265<br /> * [[WinterHill Receiver Project]]<br /> * [[Tilt-O-Matic]] Pan and tilt head for surveyor tripods<br /> * [[Gerber Files]] Index of Gerber (PCB) files used by BATC and Members' Projects<br /> <br /> == Deutschsprachiges Wiki ==<br /> <br /> * Portsdown DATV Projekt - Deutschsprachiges Wiki<br /> * Minitioune(r) - Deutschsprachiges Wiki<br /> <br /> == Useful Circuits and notes ==<br /> * [[Antenna changeover relays]] - Notes on suitable antenna change over relays for ATV use.<br /> * [[Filters]] - Collection of links and designs for that most critical but over looked component!<br /> * [[Pre-amps]] - Notes, suppliers and circuits of pre-amplifiers suitable for ATV<br /> * [[Power amplifiers]] - Notes, suppliers and circuits of power amplifiers suitable for ATV<br /> * [[Video circuits]] - Notes and circuits for video processing<br /> * [[Satellite receiver tuning offsets]] - Note on how to set up a satellite receiver to directly receive L band signals.<br /> * [[Using ex-satellite dishes]] - Notes on how to find the feed point of a dish and designs for feeds to use<br /> <br /> == ATV Equipment manuals and schematics ==<br /> * [[Bob Platts G8OZP]] Circuits and documentation for the Bob Platts range of equipment<br /> * [[Comtech module]] - 23cms and 13cms ATV Tx and Rx circuits and guides<br /> * [[Solent ATV units]] - Tx and Rx circuits and information<br /> * [[Wood &amp; Douglas FM TV equipment]] - Circuits, pcb layouts and information<br /> * [[LMW Electronics]] - Circuits, pcb layouts and information<br /> * [[Fortop]] - Circuits, pcb layouts and information<br /> * [[Glencom]] - VC-510 VHF to L band up converter circuit diagram and modifications<br /> * [[Global communications]] - Hand drawn circuit of tuneable 70 / 140 MHz to L band block up converter<br /> * [[Jaybeam]] - Details of many Jaybeam aerials<br /> <br /> == Ex commercial broadcast equipment manuals ==<br /> * [[NDS System 3000]]<br /> * [[NDS Alteia rx]]<br /> <br /> == Test equipment Information ==<br /> For HP and Agilent equipment see the io group discussion at [https://groups.io/g/HP-Agilent-Keysight-equipment]<br /> <br /> == Other equipment information related to ATV ==</div>

G3gja https://wiki.batc.org.uk/index.php?title=Christmas_2025_Repeater_Contest_%26_Activity_Ladder&diff=12056 2025-12-06T12:57:23Z

<p>G3gja: </p> <hr /> <div>The Christmas Repeater Contest 2025 will run from the 24th December 2025 through to the 2nd January 2025 inclusive. The aim is to increase ATV repeater use. On offer is a £100 prize and a BATC Trophy for the repeater with the most contacts recorded.<br /> <br /> The Christmas Activity ladder runs concurrently with the the Repeater Contest. Use the Repeater Contest contacts and any non-repeater contacts you make to add points to your score. There are no cash prizes for the winner of the Christmas Activity Ladder Challenge, but the first placed station will receive a personalised BATC Trophy and the second placed station will receive a certificate. Your name and callsign will appear in CQ-TV with attached bragging rights, kudos etc.! Many repeater groups have been affected by the current economic conditions and increased electricity prices, so here’s a chance to help your local ATV repeater and stir up some activity at the same time.<br /> <br /> The on-line entry and ladder system as used for last year's Contest on the BATC website will be used. The Ladder has fields for you to enter the points claimed and the repeater's callsign.<br /> <br /> The rules are available in PDF form here: [[:File:Christmas 2025 BATC REPEATER ACTIVITY CONTEST and ACTIVITY CHALLENGE RULES.pdf]] <br /> <br /> Christmas 2025 BATC REPEATER ACTIVITY CONTEST and ACTIVITY CHALLENGE RULES<br /> <br /> 1. Introduction. The main object of an Amateur Television Contest is to promote ATV activity. Anyone interested in ATV, whether they are members of the British Amateur Television Club or not, are welcome to take part.<br /> <br /> 2. Eligibility. BATC Contests are open to all licensed radio amateurs who are equipped to transmit pictures by analogue or digital Fast Scan. For this contest there is also a receive only section.<br /> <br /> 3. Dates and Times. The contest will run from 0000hrs GMT on the 24th December 2025 to 2359hrs GMT on the 2nd January 2026.<br /> <br /> 4. Location. The operating location must be within the terms of your licence. If operating away from your main station, please get the permission of the landowner. It is essential that you adhere to any local and national COVID restrictions in force.<br /> <br /> 5. Frequencies. Within the allocated segments of the 70cm, 23cm, 13cm, 9cm, 6cm, 3cm and 1.5cm bands for FSTV. The NoV bands of 71MHz and 146.5MHz are also eligible. Operation must be via repeaters to be valid for the Repeater Contest.<br /> <br /> 6. Power. Output power must not exceed that set out in the terms of your licence.<br /> <br /> 7. Exchange. Both a CALL SIGN and a FOUR-FIGURE code number (not consecutive &amp; four different digits) must be conveyed via video and received via the repeater by another station. Reception of the repeater can either be via the RF output or the repeater's streaming channel. The same exchange should be used for direct contacts for points to be valid in the Challenge.<br /> <br /> Confirmation of reception is by transmitting back the sum of the code numbers (not the actual transmitted number) on the repeater or on the talk-back channel. Confirmation via the streaming chat channel or other non-radio means is allowed as is confirmation by another voice repeater (analogue or digital).<br /> <br /> Please note that all four digits in the contest number should be different and not consecutive. The numbers must be different for each band, e.g. these numbers are OK: 2741, 4820, etc, these are not:- 1111, 1138, 1381, 1234 etc. Reports should be sent using a 1-5 video quality report and a serial number, starting at 001 for each band.<br /> <br /> 8. Use of Internet streaming: a valid contact requires one station of a QSO to be using RF by either transmitting into the the repeater or receiving the repeater's RF output. Only the station using RF to transmit to or receive from the repeater can claim points. Stream to stream contacts are not permitted..<br /> <br /> 9. Scoring. The following multipliers should be used: 71MHz &amp; 146MHz @ 5 points per km, 70cm @ 3 points per km, 23cm @ 2 points per km. Contacts on higher bands @ 5 points per km.<br /> <br /> For the Christmas Repeater Activity Contest, you can claim points for repeating contacts on each day of the contest.<br /> <br /> A single callsign can be worked via a repeater from up to two locations with unique QTH Locators, on the same day, band and with the same callsigns. For example, you can work into the repeater from home and then you can go out portable to another location and the points earned /P can be claimed for working the same stations on the same bands earlier in the day from the home station. You may not claim points for multiple contacts with the same station via the same repeater on the same day on different bands for any one unique location. RF or Internet links between two repeaters do not count for additional points.<br /> <br /> For the Challenge, on any day you may work the same station on different bands and claim points for each contact from any location with a unique QTH Locator.<br /> <br /> 10. Distance Calculations. All distances are calculated by the online entry program. For scoring purposes, all valid contacts shall be deemed to have taken place over a distance of at least 5 km, even if the two stations or the repeater in the contact have the same or adjacent locators. Scoring is be based on the distance between the centres of location squares, not map distance. Full 6-character length QTH locators must be used.<br /> <br /> 11. On-line logging. Use the Activity Ladder page on the BATC website here: https://batc.org.uk/contests/xmas-ladder and fill in the boxes to register your entry. On completion you will receive an email containing two unique links for each ladder. Clicking the links will take you your personal entry website where you can enter the details for each contact as appropriate.<br /> <br /> 12. Receive only section. Send an e-mail to the Contest Manager with log sheet attached giving your Call sign / BRS No. and name and address, Band, Date/Time, Call sign of station seen, Repeater Callsign, Repeater Locator, Locator of other station, Code number received, km from your station to repeater, km from repeater to distant station and points claimed.<br /> <br /> 13. Disputes. The decision of the contest manager and/or the BATC Committee is final.<br /> <br /> 14. Spirit of the Contest. Don’t leave your video transmission on any longer than necessary. Let other stations use the repeater / frequency as well. Contests mean activity and good fun, join in and, even if you only work one or two stations, please use the Ladder to record your activity.<br /> <br /> 15. Declaration of Interest. Although acting as contest manager, I reserve the right to take part.<br /> <br /> 16. Submission of entries. Transmitting section entries will only be accepted via the on-line Activity Ladder web page. No paper or spreadsheet logs will be accepted except for the Receive section.<br /> <br /> 17. Contact Address. Queries can be submitted to: C. Reynolds, 49 Westborough Way, Anlaby Common, East Riding of Yorkshire HU4 7SW. Email: contests@batc.tv<br /> <br /> Clive Reynolds G3GJA / G8EQZ BATC Contest Manager 6 December 2025</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:Christmas_2025_BATC_REPEATER_ACTIVITY_CONTEST_and_ACTIVITY_CHALLENGE_RULES.pdf&diff=12055 2025-12-06T12:57:01Z

<p>G3gja: G3gja uploaded a new version of File:Christmas 2025 BATC REPEATER ACTIVITY CONTEST and ACTIVITY CHALLENGE RULES.pdf</p> <hr /> <div>File uploaded with MsUpload</div>

G3gja https://wiki.batc.org.uk/index.php?title=Christmas_2025_Repeater_Contest_%26_Activity_Ladder&diff=12054 2025-12-06T12:54:50Z

<p>G3gja: </p> <hr /> <div>The Christmas Repeater Contest 2025 will run from the 24th December 2025 through to the 2nd January 2025 inclusive. The aim is to increase ATV repeater use. On offer is a £100 prize and a BATC Trophy for the repeater with the most contacts recorded.<br /> <br /> The Christmas Activity ladder runs concurrently with the the Repeater Contest. Use the Repeater Contest contacts and any non-repeater contacts you make to add points to your score. There are no cash prizes for the winner of the Christmas Activity Ladder Challenge, but the first placed station will receive a personalised BATC Trophy and the second placed station will receive a certificate. Your name and callsign will appear in CQ-TV with attached bragging rights, kudos etc.! Many repeater groups have been affected by the current economic conditions and increased electricity prices, so here’s a chance to help your local ATV repeater and stir up some activity at the same time.<br /> <br /> The on-line entry and ladder system as used for last year's Contest on the BATC website will be used. The Ladder has fields for you to enter the points claimed and the repeater's callsign.<br /> <br /> The rules are available in PDF form here: [[:File:Christmas 2025 BATC REPEATER ACTIVITY CONTEST and ACTIVITY CHALLENGE RULES.pdf]] <br /> <br /> Christmas 2025 BATC REPEATER ACTIVITY CONTEST and ACTIVITY CHALLENGE RULES<br /> <br /> 1. Introduction. The main object of an Amateur Television Contest is to promote ATV activity. Anyone interested in ATV, whether they are members of the British Amateur Television Club or not, are welcome to take part.<br /> <br /> 2. Eligibility. BATC Contests are open to all licensed radio amateurs who are equipped to transmit pictures by analogue or digital Fast Scan. For this contest there is also a receive only section.<br /> <br /> 3. Dates and Times. The contest will run from 0000hrs GMT on the 24th December 2025 to 2359hrs GMT on the 2nd January 2025.<br /> <br /> 4. Location. The operating location must be within the terms of your licence. If operating away from your main station, please get the permission of the landowner. It is essential that you adhere to any local and national COVID restrictions in force.<br /> <br /> 5. Frequencies. Within the allocated segments of the 70cm, 23cm, 13cm, 9cm, 6cm, 3cm and 1.5cm bands for FSTV. The NoV bands of 71MHz and 146.5MHz are also eligible. Operation must be via repeaters to be valid for the Repeater Contest.<br /> <br /> 6. Power. Output power must not exceed that set out in the terms of your licence.<br /> <br /> 7. Exchange. Both a CALL SIGN and a FOUR-FIGURE code number (not consecutive &amp; four different digits) must be conveyed via video and received via the repeater by another station. Reception of the repeater can either be via the RF output or the repeater's streaming channel. The same exchange should be used for direct contacts for points to be valid in the Challenge.<br /> <br /> Confirmation of reception is by transmitting back the sum of the code numbers (not the actual transmitted number) on the repeater or on the talk-back channel. Confirmation via the streaming chat channel or other non-radio means is allowed as is confirmation by another voice repeater (analogue or digital).<br /> <br /> Please note that all four digits in the contest number should be different and not consecutive. The numbers must be different for each band, e.g. these numbers are OK: 2741, 4820, etc, these are not:- 1111, 1138, 1381, 1234 etc. Reports should be sent using a 1-5 video quality report and a serial number, starting at 001 for each band.<br /> <br /> 8. Use of Internet streaming: a valid contact requires one station of a QSO to be using RF by either transmitting into the the repeater or receiving the repeater's RF output. Only the station using RF to transmit to or receive from the repeater can claim points. Stream to stream contacts are not permitted..<br /> <br /> 9. Scoring. The following multipliers should be used: 71MHz &amp; 146MHz @ 5 points per km, 70cm @ 3 points per km, 23cm @ 2 points per km. Contacts on higher bands @ 5 points per km.<br /> <br /> For the Christmas Repeater Activity Contest, you can claim points for repeating contacts on each day of the contest.<br /> <br /> A single callsign can be worked via a repeater from up to two locations with unique QTH Locators, on the same day, band and with the same callsigns. For example, you can work into the repeater from home and then you can go out portable to another location and the points earned /P can be claimed for working the same stations on the same bands earlier in the day from the home station. You may not claim points for multiple contacts with the same station via the same repeater on the same day on different bands for any one unique location. RF or Internet links between two repeaters do not count for additional points.<br /> <br /> For the Challenge, on any day you may work the same station on different bands and claim points for each contact from any location with a unique QTH Locator.<br /> <br /> 10. Distance Calculations. All distances are calculated by the online entry program. For scoring purposes, all valid contacts shall be deemed to have taken place over a distance of at least 5 km, even if the two stations or the repeater in the contact have the same or adjacent locators. Scoring is be based on the distance between the centres of location squares, not map distance. Full 6-character length QTH locators must be used.<br /> <br /> 11. On-line logging. Use the Activity Ladder page on the BATC website here: https://batc.org.uk/contests/xmas-ladder and fill in the boxes to register your entry. On completion you will receive an email containing two unique links for each ladder. Clicking the links will take you your personal entry website where you can enter the details for each contact as appropriate.<br /> <br /> 12. Receive only section. Send an e-mail to the Contest Manager with log sheet attached giving your Call sign / BRS No. and name and address, Band, Date/Time, Call sign of station seen, Repeater Callsign, Repeater Locator, Locator of other station, Code number received, km from your station to repeater, km from repeater to distant station and points claimed.<br /> <br /> 13. Disputes. The decision of the contest manager and/or the BATC Committee is final.<br /> <br /> 14. Spirit of the Contest. Don’t leave your video transmission on any longer than necessary. Let other stations use the repeater / frequency as well. Contests mean activity and good fun, join in and, even if you only work one or two stations, please use the Ladder to record your activity.<br /> <br /> 15. Declaration of Interest. Although acting as contest manager, I reserve the right to take part.<br /> <br /> 16. Submission of entries. Transmitting section entries will only be accepted via the on-line Activity Ladder web page. No paper or spreadsheet logs will be accepted except for the Receive section.<br /> <br /> 17. Contact Address. Queries can be submitted to: C. Reynolds, 49 Westborough Way, Anlaby Common, East Riding of Yorkshire HU4 7SW. Email: contests@batc.tv<br /> <br /> Clive Reynolds G3GJA / G8EQZ BATC Contest Manager 6 December 2025</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:Christmas_2025_BATC_REPEATER_ACTIVITY_CONTEST_and_ACTIVITY_CHALLENGE_RULES.pdf&diff=12053 2025-12-06T12:54:34Z

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G3gja https://wiki.batc.org.uk/index.php?title=Christmas_2025_Repeater_Contest_%26_Activity_Ladder&diff=12052 2025-12-06T12:53:17Z

<p>G3gja: Created page with &quot;The Christmas Repeater Contest 2025 will run from the 24th December 2025 through to the 2nd January 2025 inclusive. The aim is to increase ATV repeater use. On offer is a £10...&quot;</p> <hr /> <div>The Christmas Repeater Contest 2025 will run from the 24th December 2025 through to the 2nd January 2025 inclusive. The aim is to increase ATV repeater use. On offer is a £100 prize and a BATC Trophy for the repeater with the most contacts recorded.<br /> <br /> The Christmas Activity ladder runs concurrently with the the Repeater Contest. Use the Repeater Contest contacts and any non-repeater contacts you make to add points to your score. There are no cash prizes for the winner of the Christmas Activity Ladder Challenge, but the first placed station will receive a personalised BATC Trophy and the second placed station will receive a certificate. Your name and callsign will appear in CQ-TV with attached bragging rights, kudos etc.! Many repeater groups have been affected by the current economic conditions and increased electricity prices, so here’s a chance to help your local ATV repeater and stir up some activity at the same time.<br /> <br /> The on-line entry and ladder system as used for last year's Contest on the BATC website will be used. The Ladder has fields for you to enter the points claimed and the repeater's callsign.<br /> <br /> The rules are available in PDF form here: File:Christmas 2025 BATC REPEATER ACTIVITY CONTEST and ACTIVITY CHALLENGE RULES.pdf<br /> <br /> Christmas 2025 BATC REPEATER ACTIVITY CONTEST and ACTIVITY CHALLENGE RULES<br /> <br /> 1. Introduction. The main object of an Amateur Television Contest is to promote ATV activity. Anyone interested in ATV, whether they are members of the British Amateur Television Club or not, are welcome to take part.<br /> <br /> 2. Eligibility. BATC Contests are open to all licensed radio amateurs who are equipped to transmit pictures by analogue or digital Fast Scan. For this contest there is also a receive only section.<br /> <br /> 3. Dates and Times. The contest will run from 0000hrs GMT on the 24th December 2025 to 2359hrs GMT on the 2nd January 2025.<br /> <br /> 4. Location. The operating location must be within the terms of your licence. If operating away from your main station, please get the permission of the landowner. It is essential that you adhere to any local and national COVID restrictions in force.<br /> <br /> 5. Frequencies. Within the allocated segments of the 70cm, 23cm, 13cm, 9cm, 6cm, 3cm and 1.5cm bands for FSTV. The NoV bands of 71MHz and 146.5MHz are also eligible. Operation must be via repeaters to be valid for the Repeater Contest.<br /> <br /> 6. Power. Output power must not exceed that set out in the terms of your licence.<br /> <br /> 7. Exchange. Both a CALL SIGN and a FOUR-FIGURE code number (not consecutive &amp; four different digits) must be conveyed via video and received via the repeater by another station. Reception of the repeater can either be via the RF output or the repeater's streaming channel. The same exchange should be used for direct contacts for points to be valid in the Challenge.<br /> <br /> Confirmation of reception is by transmitting back the sum of the code numbers (not the actual transmitted number) on the repeater or on the talk-back channel. Confirmation via the streaming chat channel or other non-radio means is allowed as is confirmation by another voice repeater (analogue or digital).<br /> <br /> Please note that all four digits in the contest number should be different and not consecutive. The numbers must be different for each band, e.g. these numbers are OK: 2741, 4820, etc, these are not:- 1111, 1138, 1381, 1234 etc. Reports should be sent using a 1-5 video quality report and a serial number, starting at 001 for each band.<br /> <br /> 8. Use of Internet streaming: a valid contact requires one station of a QSO to be using RF by either transmitting into the the repeater or receiving the repeater's RF output. Only the station using RF to transmit to or receive from the repeater can claim points. Stream to stream contacts are not permitted..<br /> <br /> 9. Scoring. The following multipliers should be used: 71MHz &amp; 146MHz @ 5 points per km, 70cm @ 3 points per km, 23cm @ 2 points per km. Contacts on higher bands @ 5 points per km.<br /> <br /> For the Christmas Repeater Activity Contest, you can claim points for repeating contacts on each day of the contest.<br /> <br /> A single callsign can be worked via a repeater from up to two locations with unique QTH Locators, on the same day, band and with the same callsigns. For example, you can work into the repeater from home and then you can go out portable to another location and the points earned /P can be claimed for working the same stations on the same bands earlier in the day from the home station. You may not claim points for multiple contacts with the same station via the same repeater on the same day on different bands for any one unique location. RF or Internet links between two repeaters do not count for additional points.<br /> <br /> For the Challenge, on any day you may work the same station on different bands and claim points for each contact from any location with a unique QTH Locator.<br /> <br /> 10. Distance Calculations. All distances are calculated by the online entry program. For scoring purposes, all valid contacts shall be deemed to have taken place over a distance of at least 5 km, even if the two stations or the repeater in the contact have the same or adjacent locators. Scoring is be based on the distance between the centres of location squares, not map distance. Full 6-character length QTH locators must be used.<br /> <br /> 11. On-line logging. Use the Activity Ladder page on the BATC website here: https://batc.org.uk/contests/xmas-ladder and fill in the boxes to register your entry. On completion you will receive an email containing two unique links for each ladder. Clicking the links will take you your personal entry website where you can enter the details for each contact as appropriate.<br /> <br /> 12. Receive only section. Send an e-mail to the Contest Manager with log sheet attached giving your Call sign / BRS No. and name and address, Band, Date/Time, Call sign of station seen, Repeater Callsign, Repeater Locator, Locator of other station, Code number received, km from your station to repeater, km from repeater to distant station and points claimed.<br /> <br /> 13. Disputes. The decision of the contest manager and/or the BATC Committee is final.<br /> <br /> 14. Spirit of the Contest. Don’t leave your video transmission on any longer than necessary. Let other stations use the repeater / frequency as well. Contests mean activity and good fun, join in and, even if you only work one or two stations, please use the Ladder to record your activity.<br /> <br /> 15. Declaration of Interest. Although acting as contest manager, I reserve the right to take part.<br /> <br /> 16. Submission of entries. Transmitting section entries will only be accepted via the on-line Activity Ladder web page. No paper or spreadsheet logs will be accepted except for the Receive section.<br /> <br /> 17. Contact Address. Queries can be submitted to: C. Reynolds, 49 Westborough Way, Anlaby Common, East Riding of Yorkshire HU4 7SW. Email: contests@batc.tv<br /> <br /> Clive Reynolds G3GJA / G8EQZ BATC Contest Manager 6 December 2025</div>

G3gja https://wiki.batc.org.uk/index.php?title=Watching_the_streamer_with_VLC&diff=11976 2025-10-23T13:54:42Z

<p>G3gja: </p> <hr /> <div>Since the demise of Flash at the end of 2020 you will find your standard web browser has up to 25 seconds delay on a streamed repeater channel. <br /> <br /> However, a program called Video Lan Client (VLC) enables you to watch a typical repeater stream using Flash with ~ 2 seconds delay.<br /> <br /> ==Easy to use BATC streamer viewer==<br /> <br /> Using VLC can be a bit &quot;techie&quot; and so John G7JTT has written a small program that saves having to manually configure VLC.<br /> <br /> * Download and install VLC https://www.videolan.org/vlc/index.en-GB.html - <br /> <br /> * Download the following file [[:File:BATCStreamViewerv0.2.zip]]<br /> <br /> * Extract it and then run &quot;BATC-StreamerViewer.exe&quot;<br /> <br /> * Select the channel you wish to watch and press OK.<br /> <br /> If you tick the &quot;stay on top&quot; box you can open up your web browser to the same streaming page and then drag the viewer on top of the normal video window. When you use the chat the viewer will remain visible. Don't forget to turn the sound down on the web browser or you will get a 15-second echo!<br /> <br /> [[File:Streamviewr 2.jpg|500px]]<br /> <br /> The picture shows streamviewer imposed on top of a standard web browser page.<br /> <br /> ==Multi channel stream viewer==<br /> <br /> John has also written a multi channel viewer which can be used to view up to 4 streams at once. It can also be used to view the UDP output from MiniTiouner or Ryde.<br /> <br /> It can be downloaded here: [[:File:VLC-Quadv0.3..zip]] Extract the archive into a folder in the root of your C: drive.<br /> <br /> John has released (23/10/2025) another version, v0.4, of the his multi-channel viewer that dispenses with the Minitioune input allowing four BATC streams to be monitored simultaneously. This is particularly useful for monitoring for activity now that many repeaters are streaming their output to the BATC server.<br /> <br /> Download from here: [[:File:Quad.zip]] Extract the archive into a folder in the root of your C: drive, for example '''c:\quad''' <br /> <br /> For both versions of John's viewer the '''BATCStreams.txt''' file needs to contain the callsign of the repeaters you want to display. It's located in the same folder as the executable.<br /> <br /> <br /> [[File:quad viewer.png|500px]]<br /> <br /> ==Manually configuring VLC==<br /> <br /> Follow these instructions:<br /> <br /> Download VLC https://www.videolan.org/vlc/index.en-GB.html - <br /> <br /> Go to &quot;Media&quot; &gt; &quot;open network stream&quot;: or press CTRL-N <br /> <br /> [[File:VLC stream channel.JPG|400px]]<br /> <br /> Enter the following into the network URL box:<br /> <br /> '''rtmp://rtmp.batc.org.uk/live/xxxxx''' - where xxxx is the name of the stream you want to watch.<br /> <br /> Press play.<br /> <br /> ==To create a desktop shortcut in Windows==<br /> <br /> Firstly create a shortcut to VLC on your desktop, then right click on the shortcut and add the path to your favourite channel at the of the line in the &quot;Target&quot; window. <br /> <br /> &quot;C:\Program Files\VideoLAN\VLC64\vlc.exe&quot; rtmp://rtmp.batc.org.uk/live/gb3sq<br /> <br /> by adding -f it will open in full screen <br /> <br /> &quot;C:\Program Files\VideoLAN\VLC64\vlc.exe&quot; -f rtmp://rtmp.batc.org.uk/live/gb3sq<br /> <br /> You can also change the icon to differentiate between streams, here are a few I use<br /> <br /> [[File:Icons.zip|thumb|icon pack]]</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:Quad.zip&diff=11975 2025-10-23T13:44:13Z

<p>G3gja: File uploaded with MsUpload</p> <hr /> <div>File uploaded with MsUpload</div>

G3gja https://wiki.batc.org.uk/index.php?title=IARU_ATV_contest&diff=11780 2025-06-01T10:35:58Z

<p>G3gja: </p> <hr /> <div>The most important on-air event of the year is the annual IARU ATV Contest which takes place over the second weekend of June each year.<br /> <br /> ==Update for 2025==<br /> <br /> The IARU Region 1 ATV Contest will go ahead on the weekend of 14 June 2025 from 1200UTC to 15 June 2025 1800UTC. In the UK there will be a 3 sections, one for single location stations, one for roving (multiple location) stations and a UK Only 2M stations.<br /> <br /> Please use the entry spreadsheet here: [https://www.iaru-r1.org/wp-content/uploads/2024/05/ATV-contest-log-IARU-V6-2024-5-16.xls Entry Spreadsheet]<br /> <br /> The normal rules can be found at [https://www.iaru-r1.org/wp-content/uploads/2024/05/Rules-IARU-R1-ATV-Contest.pdf IARU ATV Contest Rules]. <br /> <br /> Entries should be submitted to your National Coordinator (Clive G3GJA in the UK at contests@batc.tv). Rob, PE1ITR will accept entries direct on the e-mail address atv@iaru-r1.org if you are unable to contact your national coordinator.<br /> <br /> Please pass this on to any prospective participants – just for 2 days, we need to get people off of QO-100 and onto the other bands!<br /> <br /> ==Introduction==<br /> <br /> This is an international contest and ATV operators in all countries in IARU region 1 enter and a table of results is produced showing a league table of entries based on bands used and number of entries from each country.<br /> <br /> [[File:2018 IARU ATV Map.png|419px]]<br /> <br /> ===Who can enter?===<br /> <br /> Everyone! You can enter from your home station, from a portable location or a club station - and you don't have to be a BATC member to enter.<br /> <br /> You can get on air for an hour on Sunday morning or go out camping on the local hill top for the whole weekend!<br /> <br /> The rules allow for “roving” stations, so there is no reason why you should not operate from home on one day, and go out portable on another, or even use multiple portable sites. Just remember to use new 4-digit codes from each location '''and to ask for new codes''' from any station that you have worked before.<br /> <br /> ===What Bands are in Use?===<br /> <br /> The IARU region 1 ATV Contest includes all harmonised amateur bands above 400 MHz. For 2022, there is an additional section for 50 MHz entries. <br /> <br /> Note: Only the UK has the 71 and 146MHz bands and so are not included in the IARU ATV contest.<br /> <br /> ===What do I send and how is the contact confirmed?===<br /> <br /> The basic aim is to send a 4 digit code and have it successfully received - you'll find that most receiving stations add the 4 numbers to together and tell you the sum as confirmation that they received them.<br /> <br /> The numbers in the 4 digit code should not be the same or consecutive: 4752 is OK, but 2345 or 2222 are not and you need to send a different set of numbers on each band you transmit on.<br /> <br /> The numbers can be scribbled on a piece of paper, loaded in to a .jpg and played out as video or computer generated. The Portsdown system can automatically generate a different set of numbers for each band, but you need to set the numbers before the Contest. The default Portsdown numbers are not valid for contest use; full details of how to set them are here: [[Portsdown Contest Numbers]].<br /> <br /> ===Signal reports===<br /> <br /> Contest reports use the P scale for reporting ATV signal readability: The P report is followed by a sequential 3 digit serial number for the contact. For example for your first contact on 23 cm you might send the report P4001, and for the second contact P5002. <br /> <br /> Start the serial number from 001 for each band; if you are unsuccessful in receiving pictures, you should send back a report such as P0003. This ensures that your attempt at a contact appears in the log.<br /> <br /> [[File:p reports.JPG|400px]]<br /> <br /> Note that if you receive numbers from another station, he must be at least P2. You won't get any points for P1 reports!<br /> <br /> ===How do I know other people are on the air?===<br /> <br /> The easiest way to co-ordinate and set up contacts is by calling / listening on 144.750MHz FM.<br /> <br /> Most stations will also submit proposed activity plans on the BATC forum - the 2018 plans are here: https://forum.batc.org.uk/viewtopic.php?f=75&amp;t=5427<br /> <br /> DXSpot.TV https://dxspot.batc.org.uk/ was set up to co-ordinate ATV contacts and have a real time chat room where you can message other ATV operators directly - we suggest you register for an account before the contest.<br /> <br /> You can access the DXSpot.TV chat room over low bandwidth (2G?) links using this address: https://dxspot.batc.org.uk/chat/<br /> <br /> ===Time of contest===<br /> <br /> The contest rules refer to times in UTC: this is Universal Coordinated Time (the abbreviation comes from the French translation which is internationally accepted). Many of us will know this as Greenwich Mean Time (GMT), which is the clock time in the UK during the winter, but one hour behind in the Summer when we use British Summer Time (BST). This is why the International Contest starts at 1pm and finishes at 7pm for us. UTC should be used for the contest log.<br /> <br /> ===Submitting an entry===<br /> <br /> While the important thing is that you get &quot;on the air&quot; at sometime over the weekend, it would be great if you also took the time to submit an entry, even if it is only for a single 5km QSO across town using the 5665MHz drone equipment you just got working! That way we can show to Ofcom and other users that there is real activity on the ATV bands and also so the UK can have highest number of entries in the contest!<br /> <br /> You should submit an entry on the official Excel Spreadsheet which you can download from here [[:File:ATV-contest-log-callsign-20220611.xls]]<br /> <br /> Note that you must &quot;Enable Macros&quot; to allow all the calculations in the spreadsheet to work.<br /> <br /> Once you have completed the entries please email them to contests@batc.tv.<br /> <br /> ===Contact scoring===<br /> <br /> When you submit an entry your contact will be awarded a score based on these rules:<br /> <br /> A two-way exchange of the four-digit code group by vision together with the exchange of the other information shall score double the number of points per km shown in this table:<br /> <br /> [[File:Scoring multipliers.JPG|400px]]<br /> <br /> One way contacts score the number of points per km shown.<br /> <br /> Note that for scoring purposes, all valid contacts shall be deemed to have taken place over a distance of at least 5 kilometres, even if the two stations in contact have the same or adjacent IARU locators.<br /> <br /> Reports of P1 do not allow for exchange of numbers - so make sure that all point-scoring contacts are at least P2!<br /> <br /> ==Previous year's results==<br /> <br /> The number of stations entering the contest across Region 1 is as follows:<br /> <br /> 2014 = 33<br /> <br /> 2015 = 42<br /> <br /> 2016 = 52<br /> <br /> 2017 = 95<br /> <br /> 2018 = 100<br /> <br /> 2019 = 55<br /> <br /> 2020 = 92<br /> <br /> 2021 = 85<br /> <br /> ===2021 contest results===<br /> <br /> Noel G8GTZ had the highest overall score in IARU Region 1.<br /> <br /> ===2020 contest results===<br /> <br /> Francesco IK3HHG had the highest score, while Noel G8GTZ was the highest placed UK entry.<br /> <br /> ===2019 contest results===<br /> <br /> Noel G8GTZ was the top UK station and also band winner on 24GHz along with G4FRE.<br /> <br /> Full results can be found here https://www.iaru-r1.org/wp-content/uploads/2019/09/IARU-Region-1-ATV-Contest-2019-Results.pdf<br /> <br /> BATC also ran a 71 and 146MHz contest alongside the main event - results can be found here: https://forum.batc.org.uk/viewtopic.php?f=75&amp;t=6206<br /> <br /> ===2018 contest results===<br /> <br /> UK stations won both the 24GHz and 76 GHz sections and Rob M0DTS was the highest placed UK station.<br /> <br /> The international 2018 IARU ATV contest results can be found [[IARU_ATV_contest_2018_International_Results|here]].<br /> <br /> A full list of the UK results can be found [[IARU_ATV_contest_2018_Results|here]].<br /> <br /> ===2017 contest results===<br /> <br /> The 2017 contest results are available here https://vhf-uhf.veron.nl/wp-content/uploads/2015/08/IARU-ATV-results-2017.pdf<br /> <br /> Congratulations to Rob M0DTS for the top UK entry and to Terry G1LPS for winning the overall 9cm section for the third year in succession!<br /> <br /> <br /> ===Certificates===<br /> <br /> All entrants will receive a Certificate stating their overall position in the IARU Contest. Band winners for the IARU bands will receive a certiificate from the IARU; Band winners in the BATC Contest (71 and 146 MHz) will receive a certificate from the BATC.<br /> <br /> ===More information===<br /> <br /> The latest Rules for the International ATV Contest can be downloaded here [[Media:2018_ATV_Contest_Rules.pdf]](.pdf). <br /> <br /> The Contest Manager can be contacted on mailto:contests@batc.tv</div>

G3gja https://wiki.batc.org.uk/index.php?title=IARU_ATV_contest&diff=11779 2025-06-01T10:34:11Z

<p>G3gja: </p> <hr /> <div>The most important on-air event of the year is the annual IARU ATV Contest which takes place over the second weekend of June each year.<br /> <br /> ==Update for 2025==<br /> <br /> The IARU Region 1 ATV Contest will go ahead on the weekend of 14/15 June 2025. In the UK there will be a 3 sections, one for single location stations, one for roving (multiple location) stations and a UK Only 2M stations.<br /> <br /> Please use the entry spreadsheet here: [https://www.iaru-r1.org/wp-content/uploads/2024/05/ATV-contest-log-IARU-V6-2024-5-16.xls Entry Spreadsheet]<br /> <br /> The normal rules can be found at [https://www.iaru-r1.org/wp-content/uploads/2024/05/Rules-IARU-R1-ATV-Contest.pdf IARU ATV Contest Rules]. <br /> <br /> Entries should be submitted to your National Coordinator (Clive G3GJA in the UK at contests@batc.tv). Rob, PE1ITR will accept entries direct on the e-mail address atv@iaru-r1.org if you are unable to contact your national coordinator.<br /> <br /> Please pass this on to any prospective participants – just for 2 days, we need to get people off of QO-100 and onto the other bands!<br /> <br /> ==Introduction==<br /> <br /> This is an international contest and ATV operators in all countries in IARU region 1 enter and a table of results is produced showing a league table of entries based on bands used and number of entries from each country.<br /> <br /> [[File:2018 IARU ATV Map.png|419px]]<br /> <br /> ===Who can enter?===<br /> <br /> Everyone! You can enter from your home station, from a portable location or a club station - and you don't have to be a BATC member to enter.<br /> <br /> You can get on air for an hour on Sunday morning or go out camping on the local hill top for the whole weekend!<br /> <br /> The rules allow for “roving” stations, so there is no reason why you should not operate from home on one day, and go out portable on another, or even use multiple portable sites. Just remember to use new 4-digit codes from each location '''and to ask for new codes''' from any station that you have worked before.<br /> <br /> ===What Bands are in Use?===<br /> <br /> The IARU region 1 ATV Contest includes all harmonised amateur bands above 400 MHz. For 2022, there is an additional section for 50 MHz entries. <br /> <br /> Note: Only the UK has the 71 and 146MHz bands and so are not included in the IARU ATV contest.<br /> <br /> ===What do I send and how is the contact confirmed?===<br /> <br /> The basic aim is to send a 4 digit code and have it successfully received - you'll find that most receiving stations add the 4 numbers to together and tell you the sum as confirmation that they received them.<br /> <br /> The numbers in the 4 digit code should not be the same or consecutive: 4752 is OK, but 2345 or 2222 are not and you need to send a different set of numbers on each band you transmit on.<br /> <br /> The numbers can be scribbled on a piece of paper, loaded in to a .jpg and played out as video or computer generated. The Portsdown system can automatically generate a different set of numbers for each band, but you need to set the numbers before the Contest. The default Portsdown numbers are not valid for contest use; full details of how to set them are here: [[Portsdown Contest Numbers]].<br /> <br /> ===Signal reports===<br /> <br /> Contest reports use the P scale for reporting ATV signal readability: The P report is followed by a sequential 3 digit serial number for the contact. For example for your first contact on 23 cm you might send the report P4001, and for the second contact P5002. <br /> <br /> Start the serial number from 001 for each band; if you are unsuccessful in receiving pictures, you should send back a report such as P0003. This ensures that your attempt at a contact appears in the log.<br /> <br /> [[File:p reports.JPG|400px]]<br /> <br /> Note that if you receive numbers from another station, he must be at least P2. You won't get any points for P1 reports!<br /> <br /> ===How do I know other people are on the air?===<br /> <br /> The easiest way to co-ordinate and set up contacts is by calling / listening on 144.750MHz FM.<br /> <br /> Most stations will also submit proposed activity plans on the BATC forum - the 2018 plans are here: https://forum.batc.org.uk/viewtopic.php?f=75&amp;t=5427<br /> <br /> DXSpot.TV https://dxspot.batc.org.uk/ was set up to co-ordinate ATV contacts and have a real time chat room where you can message other ATV operators directly - we suggest you register for an account before the contest.<br /> <br /> You can access the DXSpot.TV chat room over low bandwidth (2G?) links using this address: https://dxspot.batc.org.uk/chat/<br /> <br /> ===Time of contest===<br /> <br /> The contest rules refer to times in UTC: this is Universal Coordinated Time (the abbreviation comes from the French translation which is internationally accepted). Many of us will know this as Greenwich Mean Time (GMT), which is the clock time in the UK during the winter, but one hour behind in the Summer when we use British Summer Time (BST). This is why the International Contest starts at 1pm and finishes at 7pm for us. UTC should be used for the contest log.<br /> <br /> ===Submitting an entry===<br /> <br /> While the important thing is that you get &quot;on the air&quot; at sometime over the weekend, it would be great if you also took the time to submit an entry, even if it is only for a single 5km QSO across town using the 5665MHz drone equipment you just got working! That way we can show to Ofcom and other users that there is real activity on the ATV bands and also so the UK can have highest number of entries in the contest!<br /> <br /> You should submit an entry on the official Excel Spreadsheet which you can download from here [[:File:ATV-contest-log-callsign-20220611.xls]]<br /> <br /> Note that you must &quot;Enable Macros&quot; to allow all the calculations in the spreadsheet to work.<br /> <br /> Once you have completed the entries please email them to contests@batc.tv.<br /> <br /> ===Contact scoring===<br /> <br /> When you submit an entry your contact will be awarded a score based on these rules:<br /> <br /> A two-way exchange of the four-digit code group by vision together with the exchange of the other information shall score double the number of points per km shown in this table:<br /> <br /> [[File:Scoring multipliers.JPG|400px]]<br /> <br /> One way contacts score the number of points per km shown.<br /> <br /> Note that for scoring purposes, all valid contacts shall be deemed to have taken place over a distance of at least 5 kilometres, even if the two stations in contact have the same or adjacent IARU locators.<br /> <br /> Reports of P1 do not allow for exchange of numbers - so make sure that all point-scoring contacts are at least P2!<br /> <br /> ==Previous year's results==<br /> <br /> The number of stations entering the contest across Region 1 is as follows:<br /> <br /> 2014 = 33<br /> <br /> 2015 = 42<br /> <br /> 2016 = 52<br /> <br /> 2017 = 95<br /> <br /> 2018 = 100<br /> <br /> 2019 = 55<br /> <br /> 2020 = 92<br /> <br /> 2021 = 85<br /> <br /> ===2021 contest results===<br /> <br /> Noel G8GTZ had the highest overall score in IARU Region 1.<br /> <br /> ===2020 contest results===<br /> <br /> Francesco IK3HHG had the highest score, while Noel G8GTZ was the highest placed UK entry.<br /> <br /> ===2019 contest results===<br /> <br /> Noel G8GTZ was the top UK station and also band winner on 24GHz along with G4FRE.<br /> <br /> Full results can be found here https://www.iaru-r1.org/wp-content/uploads/2019/09/IARU-Region-1-ATV-Contest-2019-Results.pdf<br /> <br /> BATC also ran a 71 and 146MHz contest alongside the main event - results can be found here: https://forum.batc.org.uk/viewtopic.php?f=75&amp;t=6206<br /> <br /> ===2018 contest results===<br /> <br /> UK stations won both the 24GHz and 76 GHz sections and Rob M0DTS was the highest placed UK station.<br /> <br /> The international 2018 IARU ATV contest results can be found [[IARU_ATV_contest_2018_International_Results|here]].<br /> <br /> A full list of the UK results can be found [[IARU_ATV_contest_2018_Results|here]].<br /> <br /> ===2017 contest results===<br /> <br /> The 2017 contest results are available here https://vhf-uhf.veron.nl/wp-content/uploads/2015/08/IARU-ATV-results-2017.pdf<br /> <br /> Congratulations to Rob M0DTS for the top UK entry and to Terry G1LPS for winning the overall 9cm section for the third year in succession!<br /> <br /> <br /> ===Certificates===<br /> <br /> All entrants will receive a Certificate stating their overall position in the IARU Contest. Band winners for the IARU bands will receive a certiificate from the IARU; Band winners in the BATC Contest (71 and 146 MHz) will receive a certificate from the BATC.<br /> <br /> ===More information===<br /> <br /> The latest Rules for the International ATV Contest can be downloaded here [[Media:2018_ATV_Contest_Rules.pdf]](.pdf). <br /> <br /> The Contest Manager can be contacted on mailto:contests@batc.tv</div>

G3gja https://wiki.batc.org.uk/index.php?title=2025_Activity_Ladders&diff=11778 2025-05-28T10:20:58Z

<p>G3gja: </p> <hr /> <div>1. Introduction. The main object of the Activity Ladders is to promote ATV activity on 5.6GHz, 70cm and 2m. Anyone interested in ATV, whether they are members of the British Amateur Television Club or not, are welcome to take part.<br /> <br /> 2. Eligibility. BATC Contests are open to all licensed radio amateurs who are equipped to transmit pictures by analogue or digital Fast Scan. There is no receive only section.<br /> <br /> 3. Dates and Times. The competition will run from 0000hrs UTC on 1st January 2025 to 2359hrs UTC on the 31st December 2025.<br /> <br /> 4. Location. Operating locations must be within the terms of your licence. If operating away from your main station, please get the permission of the landowner. Any (legal) location may be used, but contacts between two licensees operating from unchanged locations may only be claimed a maximum of twice per week. For example, if you have a daily sked, you may claim for it twice per week. It is essential that you adhere to any local and national COVID virus movement and assembly restrictions in force.<br /> <br /> 5. Frequencies and Modes. This Ladder is restricted to the 6cm, 70cm and 2m bands, using either FM ATV or digital ATV modes appropriate for the band in use. Contacts using Narrow band voice (SSB), CW and data modes are not valid for the activity ladder.<br /> <br /> 6. Power. Output power must not exceed that set out in the terms of your licence.<br /> <br /> 7. Exchange. Both a CALL SIGN and a FOUR-FIGURE code number must be conveyed and received by another station. Reception of the transmitted signal can only be via the RF link. Reception via a streamer is not permitted.<br /> <br /> Confirmation of reception is required by transmitting the sum of the code numbers (not the actual transmitted number) on the talk-back channel. Stations are encouraged to use amateur radio for talkback, but use of mobile phones or internet is permitted.<br /> <br /> Please note that the contest number should be four random chosen digits. The digits shall neither be the same (e.g. 2222) nor consecutive (e.g. 4567 or 5432).<br /> <br /> 8. On-line logging. Use the appropriate Activity Ladder page on the BATC website here: https://batc.org.uk/6cm-ladder or https://batc.org.uk/70cm-ladder and fill in the boxes for each contact as appropriate. The website will calculate the points awarded for the contact and add them to your total. You can add contacts made since the 1st January 2025 retrospectively. Entries will only be accepted via the on-line Activity Ladder web page.<br /> <br /> 9. Disputes. The decision of the contest manager and/or the BATC Committee is final.<br /> <br /> 10. Spirit of the Contest. Don’t leave your video transmission on any longer than necessary and don't hog the ATV calling channel 144.75 MHz; move off to another channel once the contact is established. Contests mean activity and good fun, join in and, even if you only work one or two stations, please use the Ladder to record your activity.<br /> <br /> 11. Declaration of Interest. Although acting as contest manager, I reserve the right to take part.<br /> <br /> 12. Contact Address. Queries can be submitted to: C. Reynolds, 49 Westborough Way, Anlaby Common, East Riding of Yorkshire HU4 7SW. Email: contests@batc.tv<br /> <br /> Clive Reynolds G3GJA / G8EQZ BATC Contest Manager 13 December 2024</div>

G3gja https://wiki.batc.org.uk/index.php?title=GB3YT&diff=11694 2025-01-27T11:27:18Z

<p>G3gja: </p> <hr /> <div>GB3YT is the 23cm digital TV Repeater located in Barnsley, South Yorkshire.<br /> &lt;P&gt;<br /> ===== Details and updates can be found on the repeater's website here: [https://gb3yt.co.uk South Yorkshire ATV Group] =====<br /> '''Input 1''' : 23cm DVB-S input frequency = 1276MHz DVB-S/S2: SR = 1000/333ks : any FEC&lt;P&gt;<br /> '''Input 2''' : 70cm DVB-S input frequency = 437Mhz not currently active: SR = 1000/333ks : any FEC&lt;P&gt;<br /> '''Input 3''' : Analogue input frequency = 1276MHz not currently active (FM) : Audio 6MHz&lt;P&gt;<br /> '''Input 4''' : Analogue input frequency = 5665MHz not currently active (FM : Audio 6.5Mhz&lt;p&gt;<br /> '''Output''' : DVB-S only = 1316MHz : SR = 1000ks&lt;P&gt;<br /> Talkback on 2m = 144.750MHz (CTCSS 118.8Hz)&lt;P&gt;<br /> During QSO, Main audio on Left channel, 2m talkback on Right audio channel.&lt;P&gt;<br /> [http://www.gb3yt.co.uk For latest news at GB3YT Website]&lt;P&gt;<br /> <br /> Please note that from the end of April 2023, GB3YT will be under new ownership.&lt;P&gt;<br /> G8VDP &amp; M1EGI / South Yorkshire ATV group</div>

G3gja https://wiki.batc.org.uk/index.php?title=GB3EY_-_Near_Hull_IO93RS&diff=11693 2025-01-27T11:22:33Z

<p>G3gja: </p> <hr /> <div>'''Now fully digital. Please send reports of reception to clive @ hesh.co.uk''' <br /> <br /> '''Output: 1308MHz, DVB-S2, QPSK, 1000kS/s, H.265, FEC 3/4, stereo audio.'''<br /> <br /> '''Input 1: 1275MHz, DVB-S QPSK or DVB-S2 QPSK or DVB-S2 8PSK, 250, 333, or 500kS/s, H262, H264 or H265, any valid FEC'''<br /> <br /> '''Input 2: Internet Stream. A key to access the stream input is available from clive@hesh.co.uk. You may be asked to supply a copy of the first page of your Ofcom licence. '''<br /> <br /> '''The QTH locator is IO93RS37'''<br /> <br /> '''When idle, the repeater relays the ATV calling channel (144.750MHz no CTCSS) on its sound channel<br /> <br /> '''Note that GB3EY is switched on between 2pm and 11pm every day to save electricity. For more details visit the EYRG website here: [https://eyrg.net East Yorkshire Repeater Group]''' <br /> &lt;br&gt;&lt;br&gt;<br /> [[File:GB3EY Coverage.jpg|frame|center|GB3EY Coverage]]<br /> The site is 155m ASL and the Alford Slot antenna is at 180m ASL with a good take off in most directions. The predicted coverage was created using Radiomobile and assumes 10m mast with a 15dBi antenna at the receiving end&lt;br&gt;<br /> &lt;br&gt;<br /> The repeater transmits 1000kS/s, FEC 3/4, with H.265 encoding on 1308MHz from a single Alford Slot antenna that was installed at 25m AGL fed with 33m of Andrews LDF5-50A. The Alford was made by G3GJA and uses a coaxial 4:1 balun formed from RG402 semi-rigid. This was found to be much easier to construct and test than the usual slotted sides coax balun approach. A work party at the EYRG site checking the P80 tower with 5m extension. A further 3m extension has been added for the Alford Slot&lt;br&gt;&lt;br&gt;<br /> The transmitter, comprising of a ALDALM Pluto SDR and two modules funded by G4YTV, were made by Bert PE1RKI. They provide 11.5 watts of RF power at the output the duplexer. The duplex filter, a two pole transmit leg inter-digital filter and a five pole inter-digital receive filter were sourced from ID Electronik Gmbh in Germany. The filters allow GB3EY to use a single antenna without any desense and at the same time apply in excess of 100dB of attenuation to the Claxby Radar on 1254.5MHz just 20.5MHz from the input frequency. The radar runs 400MW EIRP and is only 25 miles from the repeater and puts -10dBm into the repeater.&lt;br&gt;&lt;br&gt;<br /> [[File:tower.jpg|500px]]&lt;br&gt;<br /> Working on the luffed antennas&lt;br&gt;&lt;br&gt;<br /> <br /> The BATC Repeater Controller software running on a Raspberry Pi replaced the logic from the FM analogue repeater in January 2024 when the repeater was converted from digital&gt;analogue&gt;digital to digital signal paths only. It takes incoming video from a BATC Ryde receiver and Khune 132A2 pre-amp via seamless quad HDMI switches that select the source to be relayed. It is then passed to a LinkPi ENC1 v2 encoder that produces two IP streams; one at is sent to the BATC Streamer and the other is sent via Ethernet to the Pluto SDR. The BATC Streamer feed can be seen here: http://batc.org.uk/live/gb3ey. The Internet is linked to the repeater site by a 5GHz WLAN link over a 10km path that gives over 80Mbps downstream / upstream.<br /> &lt;br&gt;&lt;br&gt;<br /> [[File:M0SKM.jpg|500px]],&lt;br&gt;<br /> M0SKM nr Dunstable as seen through GB3EY at 209km<br /> &lt;br&gt;&lt;br&gt;<br /> <br /> The repeater links parts of Yorkshire with ATV that can't be worked direct on 2m, so extensive use is made of GB3NY on 430.8375MHz (CTCSS tone A, 67Hz) for talkback. GB3NY is located 2.8km north of GB3EY and has a similar coverage area.&lt;br&gt;<br /> The repeater also has a 144.750MHz audio input that is active when the repeater is idle and showing slides.&lt;br&gt;&lt;br&gt;<br /> <br /> The site is exclusively used by the East Yorkshire Repeater Group and is a former Pye Telecoms location. It also hosts GB3HS a 2m dual mode repeater, GB7HU a 70cm D-Star repeater, an ADS-B receiver feeding ADS-B Exchange, Radar24 and 1090mhz.uk plus a Netmore LoRaWAN unit.&lt;br&gt;&lt;br&gt;<br /> <br /> [[File:GB3EY installation.jpg|500px]] &lt;br&gt;GB3EY on 24/01/2024&lt;br&gt;<br /> &lt;br&gt;<br /> A new NoV was issued for GB3EY in August 2018 allowing the move to the East Yorkshire Repeater Group's site at Cave Wold Radio Station near South Cave in East Yorkshire. Test transmissions were run from a temporary mast and transmitter from August to October 2019 until the main tower was renovated and extended. EY relayed its first digital pictures on the 22nd November 2020 and all digital operation commenced on the 24 January 2024. The move has proved to be a vast improvement over the old site on the North Sea coast at Aldbrough.<br /> <br /> We hope to resurrect GB3XY the 10GHz ATV repeater, that was operational from the same site, as a DATV repeater linked to GB3EY. An antenna, duplexer, power amplifier, 3cm transverter kit and an encoder have been acquired for the project. It's hoped to repair EY's old Ryde to use as a receiver for XY.</div>

G3gja https://wiki.batc.org.uk/index.php?title=GB3EY_-_Near_Hull_IO93RS&diff=11692 2025-01-27T11:17:01Z

<p>G3gja: </p> <hr /> <div>'''Now fully digital. Please send reports of reception to clive @ hesh.co.uk''' <br /> <br /> '''Output: 1308MHz, DVB-S2, QPSK, 1000kS/s, H.265, FEC 3/4, stereo audio.'''<br /> <br /> '''Input 1: 1275MHz, DVB-S QPSK or DVB-S2 QPSK or DVB-S2 8PSK, 250, 333, or 500kS/s, H262, H264 or H265, any valid FEC'''<br /> <br /> '''Input 2: Internet Stream. A key to access the stream input is available from clive@hesh.co.uk. You may be asked to supply a copy of the first page of your Ofcom licence. '''<br /> <br /> '''The QTH locator is IO93RS37'''<br /> <br /> '''When idle, the repeater relays the ATV calling channel (144.750MHz no CTCSS) on its sound channel<br /> <br /> '''Note that GB3EY is switched on between 2pm and 11pm every day to save electricity.''' <br /> &lt;br&gt;&lt;br&gt;<br /> [[File:GB3EY Coverage.jpg|frame|center|GB3EY Coverage]]<br /> The site is 155m ASL and the Alford Slot antenna is at 180m ASL with a good take off in most directions. The predicted coverage was created using Radiomobile and assumes 10m mast with a 15dBi antenna at the receiving end&lt;br&gt;<br /> &lt;br&gt;<br /> The repeater transmits 1000kS/s, FEC 3/4, with H.265 encoding on 1308MHz from a single Alford Slot antenna that was installed at 25m AGL fed with 33m of Andrews LDF5-50A. The Alford was made by G3GJA and uses a coaxial 4:1 balun formed from RG402 semi-rigid. This was found to be much easier to construct and test than the usual slotted sides coax balun approach. A work party at the EYRG site checking the P80 tower with 5m extension. A further 3m extension has been added for the Alford Slot&lt;br&gt;&lt;br&gt;<br /> The transmitter, comprising of a ALDALM Pluto SDR and two modules funded by G4YTV, were made by Bert PE1RKI. They provide 11.5 watts of RF power at the output the duplexer. The duplex filter, a two pole transmit leg inter-digital filter and a five pole inter-digital receive filter were sourced from ID Electronik Gmbh in Germany. The filters allow GB3EY to use a single antenna without any desense and at the same time apply in excess of 100dB of attenuation to the Claxby Radar on 1254.5MHz just 20.5MHz from the input frequency. The radar runs 400MW EIRP and is only 25 miles from the repeater and puts -10dBm into the repeater.&lt;br&gt;&lt;br&gt;<br /> [[File:tower.jpg|500px]]&lt;br&gt;<br /> Working on the luffed antennas&lt;br&gt;&lt;br&gt;<br /> <br /> The BATC Repeater Controller software running on a Raspberry Pi replaced the logic from the FM analogue repeater in January 2024 when the repeater was converted from digital&gt;analogue&gt;digital to digital signal paths only. It takes incoming video from a BATC Ryde receiver and Khune 132A2 pre-amp via seamless quad HDMI switches that select the source to be relayed. It is then passed to a LinkPi ENC1 v2 encoder that produces two IP streams; one at is sent to the BATC Streamer and the other is sent via Ethernet to the Pluto SDR. The BATC Streamer feed can be seen here: http://batc.org.uk/live/gb3ey. The Internet is linked to the repeater site by a 5GHz WLAN link over a 10km path that gives over 80Mbps downstream / upstream.<br /> &lt;br&gt;&lt;br&gt;<br /> [[File:M0SKM.jpg|500px]],&lt;br&gt;<br /> M0SKM nr Dunstable as seen through GB3EY at 209km<br /> &lt;br&gt;&lt;br&gt;<br /> <br /> The repeater links parts of Yorkshire with ATV that can't be worked direct on 2m, so extensive use is made of GB3NY on 430.8375MHz (CTCSS tone A, 67Hz) for talkback. GB3NY is located 2.8km north of GB3EY and has a similar coverage area.&lt;br&gt;<br /> The repeater also has a 144.750MHz audio input that is active when the repeater is idle and showing slides.&lt;br&gt;&lt;br&gt;<br /> <br /> The site is exclusively used by the East Yorkshire Repeater Group and is a former Pye Telecoms location. It also hosts GB3HS a 2m dual mode repeater, GB7HU a 70cm D-Star repeater, an ADS-B receiver feeding ADS-B Exchange, Radar24 and 1090mhz.uk plus a Netmore LoRaWAN unit.&lt;br&gt;&lt;br&gt;<br /> <br /> [[File:GB3EY installation.jpg|500px]] &lt;br&gt;GB3EY on 24/01/2024&lt;br&gt;<br /> &lt;br&gt;<br /> A new NoV was issued for GB3EY in August 2018 allowing the move to the East Yorkshire Repeater Group's site at Cave Wold Radio Station near South Cave in East Yorkshire. Test transmissions were run from a temporary mast and transmitter from August to October 2019 until the main tower was renovated and extended. EY relayed its first digital pictures on the 22nd November 2020 and all digital operation commenced on the 24 January 2024. The move has proved to be a vast improvement over the old site on the North Sea coast at Aldbrough.<br /> <br /> We hope to resurrect GB3XY the 10GHz ATV repeater, that was operational from the same site, as a DATV repeater linked to GB3EY. An antenna, duplexer, power amplifier, 3cm transverter kit and an encoder have been acquired for the project. It's hoped to repair EY's old Ryde to use as a receiver for XY.</div>

G3gja https://wiki.batc.org.uk/index.php?title=GB3EY&diff=11691 2025-01-27T11:07:13Z

<p>G3gja: </p> <hr /> <div>'''GB3EY now operational:''' EY repeated its first digital pictures on the 22nd November 2020. Please send reports of reception to clive AT hesh.co.uk<br /> <br /> '''Output: 1308MHz, DVB-S2, QPSK, 1000kS/s, H.265, FEC 3/4'''<br /> <br /> '''Input: 1275MHz, DVB-S QPSK or DVB-S2 QPSK or DVB-S2 8PSK, 250, 333 or 500kS/s, H262 or H264 or H265, any valid FEC, stereo audio.'''<br /> <br /> '''Note that GB3EY is switched on between 2pm and 11pm every day to save electricity.''' <br /> <br /> Full details of the repeater can be found at the east Yorkshire Repeater Group's web pages: [https://eyrg.net East Yorkshire Repeater Group]</div>

G3gja https://wiki.batc.org.uk/index.php?title=GB3EY&diff=11688 2025-01-14T01:36:30Z

<p>G3gja: </p> <hr /> <div>'''GB3EY now operational:''' EY repeated its first digital pictures on the 22nd November 2020. Please send reports of reception to clive AT hesh.co.uk<br /> <br /> '''Output: 1308MHz, DVB-S2, QPSK, 1000kS/s, H.265, FEC 3/4'''<br /> <br /> '''Input: 1275MHz, DVB-S QPSK or DVB-S2 QPSK or DVB-S2 8PSK, 333 or 1000kS/s, H262 or H264 or H265, any valid FEC, stereo audio.'''<br /> <br /> '''Note that GB3EY is switched off between 11pm and 2pm every day to save electricity.''' <br /> <br /> Full details of the repeater can be found at the east Yorkshire Repeater Group's web pages: [https://eyrg.net East Yorkshire Repeater Group]</div>

G3gja https://wiki.batc.org.uk/index.php?title=File:Home.jpg&diff=11687 2025-01-14T01:35:04Z

<p>G3gja: </p> <hr /> <div></div>

G3gja