Difference between revisions of "2018 - 2023 CQ-TV 261 to CQ-TV 280"

Latest revision as of 11:49, 31 October 2021

Copies of CQ-TV more than 2 years old are free to download at https://batc.org.uk/cq-tv/cq-tv-archive/

Article	Page
One Year of Operation for the Goonhilly WebSDRs for QO-100	8
Neat Housing for the Portsdown 7-Inch Screen with Pi Camera	9
ATV repeater PI6ATS	10
Electronic push button on-off switch for the Portsdown	12
DATV Activity in North Northamptonshire	13
CQ-TV, the BATC and you, our members	14
A new controller for VK2RTS	15
Don Saunders, G0WFT - silent key	18
DATV repeater receiver with active video switch	19
BBC MCR21’s Sound Mixer Desk and audio systems	21
Remote Repeater and Station Monitoring with Modbus (Part 1)	23
Video production with a smartphone part two	27
Revived Terrestrial Activity	28
Portsdown Newsletter	29
A 10 Watt Linear Amplifier for 70cms DATV or narrowband modes	30
A compact 12 volt Beam Antenna rotator	31
Turning Back the Pages - CQ-TV 78	32

Article	Page
A New Repeater Transmission Standard for the 2020s	9
BATC report to the RSGB Spectrum Forum	12
ADALM-PLUTO DATV TX – “How To”	14
A 30 watt driver amplifier for 2.4 GHz	19
Out portable for the BATC November Activity weekend	21
5.6 GHz TV Receiver	22
Using the Jetson Nano with the LongMynd software	25
GB3ET Repeater	27
Video Fundamentals 20 - Outside Broadcast Vans	28
Portsdown Newsletter	30
25 MHz reference, biasT and diplexer for QO-100	31
The Secret Life of a TV Repeater	33
Jamboree on the Air and QO-100	35
CAT 19 South - a short report	36
Turning Back the Pages	37
DATV at the SDR Makerspace Conference	39

Article	Page
The BATC bursary scheme	7
IARU Region 1 ATV Contest 2019 Results	8
OBS and the Portsdown	10
Using Mitsubishi MOSFET power modules with PE1RKI kits	13
Telling the Story of MCR21	16
Video Fundamentals 19	18
The Jetson NanoBox	20
LNB power supply with current limit for MiniTiouner	22
A 250 Watt amplifier for Es’Hail-2 DATV	23
Portsdown Newsletter	26
The RSGB filming a new promotional video	27
The LimeNET Micro – a Single-board DATV Transmitter	28
Spectrum Matters	29
The LongMynd Receiver on the Portsdown	30
The LongMynd Receiver	32
The G4WIM PA controller	34
Turning Back the Pages - a 70 year special!	39
ATV at Chalon-sur-Saone fayre	43

Article	Page
BATC stand, Blackpool 2018 & 2019	8
BATC Members’ Shop Update	9
MCR21 Project Launch	12
23 cm QRM	13
Protecting Your LimeSDR Mini	14
Portsdown Made Simple	15
How to use K7FRY’s 10 Character Locator Website	16
Dual channel output for the BATC version 2 MiniTiouner PCB	17
KITTENS 19 & KITTENS 19 Activity Day	19
Goonhilly Spectrum Monitor and WebSDR Maintenance Visit	21
Video Fundamentals 18	22
BATC at the Kempton Park Rally	23
A very cheap easy to make Sync detector for analogue video	24
Well, I tried… 5.8GHz ATV	25
Video Production - with a smartphone! Part 1.	26
Turning Back the Pages - CQ-TV 76	28
MCR21 Recording its History	31
BATC at the Newbury Rally 2019	31

Article	Page
OSCAR- 100 has arrived!	9
Receiving QO-100	10
Transmitting Systems for QO-100 on Es’hail-2	12
G8LES Spectrian Amplifier mods for 2.3-2.4GHz	15
Portsdown Newsletter	17
Bias and reference injection board	19
Easy Hole Plating at Home	21
New DATV record on 76 GHz	24
Bristol Mini-CAT	24
MCR21 Progress	25
The old and new models of the Octagon Twin LNB	26
Route du Rhum	26
Cheap Ebay Bias Tee	27
Experiments with baseband digital video	28
A New Audio Mixer for GB3KM	32
BATC Website Incident	33
Video Fundamentals 17	34
3D Printed horn antennas - Part 2	35
Simple dual band dish feed for Es’hail-2 (POTY)	37
Turning Back the Pages - CQ-TV 75	41

Article	Page
BATC report to the RSGB Spectrum Forum	11
BATC response to WRC Agenda Item 1.1	12
The story behind Es’hail-2	13
Portsdown Support for the LimeSDR	15
Sydney Amateur Television goes 5.6 GHz	18
We were there at the launch of Es’Hail-2!	20
A 23cm Power Amplifier For Digital ATV	22
Portsdown Newsletter	25
I bought a 3-D printer	27
DVB-S DATV signal power measurement	29
Low band DATV	30
DATV on 24cms	31
Measuring Power on 5.6 GHz & a New Receiver	33
Baliu RB-TV in Catalonia	35
DATV over optical - Part 2: interfacing the two	36
Video Fundamentals 16 - Aspect Ratio re-visited	40
Turning Back the Pages - CQ-TV 74	41

Article	Page
Touchscreen control of the DATV Express – part 2	9
CAT18 award presentations and prizes	10
BATC Test Equipment	11
Microwave roundtable construction competition winners	11
A Handy Signal Generator for 10GHz	12
Es’Hail-2 launching soon!	14
The Future of CAT	15
ATV Workshop in Shropshire	16
Portsdown Newsletter	17
DATV over optical – an introduction	19
CAT18 Report	21
BATC at Goonhilly	25
Video Fundamentals 15 - Wire, labelling & MCR21	26
Es’hail-2 Wideband Transponder	28
BATC members and DATV in Spain	29
Getting ready to receive Es’hail-2	30
BATC Awards Presentations at CAT18	33
Never mind the width - look at the quality	34
David Ellis Jones B.Sc, ALCM. GW8PBX (SK)	35
Locking the Octagon PLL LNB to an external reference	36
Turning Back the Pages - CQ-TV 73	37

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-|Simple dual band dish feed for Es’hail-2
+|Simple dual band dish feed for Es’hail-2 (POTY)
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 =====Issue 262 Winter 2018=====