2018 - 2023 CQ-TV 261 to CQ-TV 280
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Copies of CQ-TV more than 2 years old are free to download at https://batc.org.uk/cq-tv/cq-tv-archive/
Issue 267 Spring 2020
| 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 |
Issue 266 Winter 2019
| 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 |
Issue 265 Autumn 2019
| 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 |
Issue 264 Summer 2019
| 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 |
Issue 263 Spring 2019
| 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 |
Issue 262 Winter 2018
| 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 |
Issue 261 Autumn 2018
| 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 |