2013 - 2018 CQ-TV 241 to CQ TV 260
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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 260 Summer 2018
Article | Page |
---|---|
The BATC 2018 General Meeting | 3 |
A potted history of the new BATC website | 10 |
DATV on 71 MHz | 12 |
71 MHz Transmitter Low Pass Filter | 13 |
71 MHz Receive Upconverter | 14 |
18W 5GHz band FM-ATV TX | 16 |
A piece of Pi | 21 |
76GHz tests June 2018 | 22 |
Video Fundamentals 14 | 23 |
The BATC Bursary scheme | 26 |
Member’s Projects - F1SSF | 26 |
HamRadio 2018 Friedrichshafen | 27 |
Aligning offset dishes | 28 |
The Royal Wedding in High Dynamic Range | 29 |
A 3 Watt LDMOS Driver for the 432MHz band | 32 |
Portsdown Newsletter | 35 |
5.6 GHz ATV – the record DX chase | 37 |
Discovering the joys of 5.6GHz ATV | 38 |
Roberto Zech, DG0VE, silent key | 40 |
Turning Back the Pages - CQ-TV 72 | 41 |
Issue 259 Spring 2018
Article | Page |
---|---|
CAT18 and the BATC General Meeting | 8 |
GDPR and the BATC | 12 |
The HamTV Merger | 13 |
3D Printed horn antennas | 16 |
3404MHz Band Pass Filter | 19 |
Narrow-bandwidth Television Association | 20 |
Video Fundamentals 13 - test signals | 21 |
Running 28v Latched Relays from a 12v Rail | 23 |
Customising the adf4351 pic code for your frequency | 27 |
My Station - M0DTS | 28 |
Minitioune V0.8 | 30 |
Producing a PIC for the 7 – band local oscillator | 33 |
Adding a display to the MiniTiouner-V2 | 37 |
Updates from Germany from TV-AMATEUR 187 | 38 |
Portsdown 2018 | 41 |
Member’s Projects - F6GXI | 43 |
Touchscreen control of the DATV-Express | 44 |
Turning Back the Pages - CQ-TV 71 | 45 |
You can download a copy of the following magazines, which are more than 2 years old, at https://batc.org.uk/cq-tv/cq-tv-archive/ or by clicking on the issue header on this page.
Issue 258 Winter 2017
Article | Page |
---|---|
5.6Ghz ATV from Cumbria | 11 |
9cm LNB Mounting | 14 |
GB3FB - A 9cm Digital ATV Repeater | 15 |
G3SMU silent key | 21 |
BATC report to the RSGB Spectrum Forum | 22 |
Kempton Park Rally - 5th November 2017 | 23 |
A LED power output indicator | 24 |
GB3TZ 5.6GHz input | 25 |
5.6 GHz WB ATV Tx | 26 |
Portsdown Update | 27 |
Portsdown Signal Generator | 29 |
Using old laptop screens for ATV | 32 |
Miniaturised Pulsed Relay Driver for 28V Microwave Relays | 33 |
Converting an old Satellite dish to a 23cm dish antenna | 34 |
Arthur C. Clarke | 35 |
Using the Tarot 5.6GHz ATV Modules | 36 |
Turning Back the Pages - CQ-TV 70 | 37 |
Issue 257 Autumn 2017
Article | Page |
---|---|
Treasurers Report for 2016 | 9 |
DigiTwist | 10 |
The ADALM-PLUTO low cost SDR | 14 |
Silent Keys - G8AJN & G3KTU | 16 |
Video Fundamentals 12 | 17 |
Using a MinimOSD board for On Screen Callsign Display | 19 |
Antenna range tests at Finningley for the BATC | 21 |
The Portsdown Digital ATV Transmitter A Beginner’s Guide | 22 |
The Portsdown Transmitter – Security Aspects | 26 |
Notes on Amplifiers & Filters | 27 |
A Vintage Pye Camera | 29 |
5.6 GHz progress | 30 |
CAT17 report | 31 |
Repeater Update - October 2017 | 33 |
The Bang-good 23cm aerial | 34 |
The Portsdown Transmitter in pictures | 35 |
A Coupler probe for use with the Rigol DSA 815-TG
Spectrum Analyser |
36 |
Turning Back the Pages - CQ-TV 69 | 37 |
Issue 256 Summer 2017
Article | Page |
---|---|
Portsdown Transmitter Construction Competition | 10 |
Power Amplifier for DATV | 11 |
DATV Moonbounce from Goonhilly | 12 |
The Portsdown Transmitter Software | 15 |
8 GHz eBay Power Meter | 17 |
CAT 17 – September 9th and 10th 2017 | 18 |
eBay Ampliiers | 19 |
MiniTioune Mark 2 DVB-S digital receiver | 20 |
Video Fundamentals 11: Studio systems – the Matrix | 23 |
My Station: Malcolm Johnson, G0UHY | 25 |
A cheap and easy 6cm ATV transceiver | 26 |
Ham Radio: DATV-Forum – the latest trends | 28 |
Known Digital ATV DX Records | 29 |
BATC website development | 30 |
Wideband LNBs | 31 |
Turning Back the Pages - CQ-TV 68 | 32 |
Issue 255 Spring 2017
Article | Page |
---|---|
AMSAT North America
Phase 4 Ground Segment Project |
10 |
Packaging Digithin | 11 |
The Portsdown Project - Overview | 12 |
The Portsdown so far…
A users experience of the build |
14 |
Portsdown Filter-Modulator Board -
Construction and Testing |
16 |
Portsdown Filter-Modulator Board Modifications | 18 |
ATV on TV - The day TX Factor came to visit | 20 |
G8LES Link Video recorder integration | 22 |
Could you help with the Scouts’ JOTA 2017? | 25 |
GB3ZZ Experimental Inputs | 26 |
BATC website development | 29 |
Relocation of the John Lawrence Valve Collection | 30 |
Es’hail-2 Ground Segment Planning Meeting | 31 |
Video Fundamentals 10: The Mixer | 32 |
A high performance ATV upconverter | 34 |
Turning Back the Pages - CQ-TV 67 | 37 |
Issue 254 Winter 2016
Article | Page |
---|---|
The BATC Portsdown DATV project | 11 |
The Portsdown Raspberry Pi-based DATV
Transmitter - Introduction |
14 |
Constructing the Portsdown Raspberry
Pi-based DATV Transmitter |
16 |
Software for the Portsdown Raspberry
Pi-based DATV Transmitter |
18 |
HamTV Update | 21 |
My Station - Tony Hornby, G1HBD | 22 |
BATC report to the RSGB Spectrum Forum | 24 |
Video Fundamentals 9 - Genlock and
Reference Signals |
26 |
Gilwell 24 - 2016 | 28 |
Turning Back the Pages - CQ-TV 66 | 29 |
Issue 253 Autumn 2016
Article | Page |
---|---|
The ADF4351 flexible signal source | 9 |
7-band local oscillator | 9 |
ADF4351 driven by an Arduino | 13 |
GB3HV 70cms input update | 15 |
A 437 MHz DVB-S Transmitter
Using a Raspberry Pi |
16 |
The Making of ‘TXFactor’ | 20 |
CAT16 - the full story | 23 |
VMix to RpiDATV via FFmpeg | 26 |
Noise Power meter for the Minitiouner | 27 |
Video Fundamentals 8 | 28 |
DN1JKG calling OR4ISS | 30 |
DATV-Express on Windows | 32 |
Here and There... | 34 |
New and renewing members | 35 |
Turning Back the Pages - CQ-TV 65 | 36 |
High Tech Wearables | 38 |
Issue 252 Summer 2016
Article | Page |
---|---|
Biennial General Meeting – Postal Votes | 6 |
CAT 16 Details | 11 |
Treasurers Report for 2015 | 12 |
Dual Filter Board for DigiLite 5.9 | 14 |
New super tuner design for dvb-s and s2 | 17 |
HAMPADS: HAM-Portable Affordable Dish
for Satellites |
18 |
Summer ATV Contest Images | 23 |
Video Fundamentals 7 - Camera Signal Processing | 24 |
The Matilda Story | 26 |
My Station - Peter Yarde, G8DKC | 35 |
Issue 251 Spring 2016
Article | Page |
---|---|
CAT 16 and BATC AGM | 9 |
Peter Blakeborough, G3PYB - Silent Key | 10 |
A BATC Wiki | 12 |
The Principia Mission - Give us a wave Tim! | 14 |
Social Media | 18 |
Simple Antenna Tracker for the ISS | 20 |
Animated Test Cards | 22 |
My Station - G8VPG **New Feature** | 24 |
Activity at GB3ET | 25 |
Video Fundamentals 6 | 26 |
DATV-Express power amplifiers | 28 |
Reduced Bandwidth TV Modulator | 32 |
New Application for DATV-Express | 34 |
More Modifications to the SUP-2400 | 35 |
leandvb: A lightweight software DVB-S demodulator | 36 |
Open Broadcaster Software with DATV-Express | 40 |
SUP-2400 DiSEqC update | 45 |
Getting started in ATV - DATV reception | 46 |
Issue 250 Winter 2015
Article | Page |
---|---|
Latest developments at GB3GV | 6 |
BATC report to RSGB Spectrum Forum | 8 |
Alan Daw, G1APD - sk | 9 |
ARISS and HamTV - Supporting the Principia Mission | 10 |
Goonhilly Earth Station | 12 |
Variable SR filter for RB-TV | 14 |
The HamTV antennas on the ISS | 16 |
Using the SUP-2400 for 146.5 MHz Reception | 17 |
An outing for the LDK5 camera | 19 |
Amateur Television “Getting Started” | 20 |
Getting Started with RB-TV | 25 |
A bandpass filter for 146.5 MHz | 28 |
DiSEqC control for the SUP2400 | 29 |
Video Fundamentals - Part5 | 31 |
Simple System to Receive ARISS HamTV | 33 |
Using FFmpeg to generate a transport stream | 34 |
DATV transmission in the UK – a short history | 40 |
Using the Linx 1010b tablet for portable DATV | 44 |
GB3HV Christmas Dinner | 46 |
Issue 249 Autumn 2015
Article | Page |
---|---|
Outside Broadcast with the BATC | 9 |
146MHz RD70HVF1 Amp | 11 |
24GHz building blocks | 12 |
2 watt driver amplifiers for 1296 and 2304MHz | 15 |
HD TV news from Germany | 19 |
Slow Scan TV with a Raspberry Pi | 23 |
vMix using FFmpeg to create the Transport Stream | 27 |
Michael Hastings, G8ASI sk | 32 |
CAT 15 - A weekend of technical presentations | 33 |
Video Fundamentals - Part4: The Camera’s Eye | 35 |
Issue 248 Summer 2015
Article | Page |
---|---|
RB-TV Roundup | 10 |
The Low SR World Conquest | 11 |
DATV Developments in North Wales | 16 |
Minitiouner - USB Tuner Module | 20 |
Narrow band DATV on the BATC DTX1 | 25 |
Product Review - PE1RKI 23cm four pole filter | 27 |
vMix using FFmpeg to create the Transport Stream | 27 |
Video Fundamentals - Part 3: Picture Monitor | 29 |
Video Sync generator | 31 |
A Field Day station with PC6REC | 36 |
Issue 247 Spring 2015
Article | Page |
---|---|
New 70MHz band for RB-DATV | 9 |
A Two way on 146.5MHz RB-DATV | 10 |
146MHz RD06+RD15 Amp | 12 |
New Life for Old Rotators | 13 |
A Guide to setting up the DATV Express for
RB-DATV Operation on 146.5MHz |
15 |
Portsmouth RB-TV Meeting | 17 |
DigiThin - A Narrowband QPSK Modulator for the Raspberry Pi | 19 |
DigiThin Beta Testing | 22 |
Add-On Transport Stream Dock for BATC DTX1 | 23 |
RPiDATV software improvements | 25 |
GB3KM - the first year of operating on 3.4GHz | 26 |
ATV image generator using the Raspberry Pi | 28 |
Local oscillators in 1.2GHz band, for Digilite DATV System | 29 |
RB-TV receiver developments | 31 |
Comparing DATV models | 32 |
Video Fundamentals 2 - Colour Bars | 34 |
Classic circuits - PicDream | 36 |
Issue 246 December 2014
Article | Page |
---|---|
BATC report to the RSGB Spectrum Forum Oct 14 | 11 |
Reduced Bandwidth DATV (RB-TV) | 13 |
RB-TV Awards Programme | 17 |
Antennair DTX-F70 and the Antennair DTX-F23 | 18 |
Understanding DATV RF Bandwidth for DVB-S | 20 |
IARU Region 1 General Conference Report | 23 |
Video Fundamentals 1 – The Line Sync Pulse | 25 |
BATC Streaming Service | 26 |
RPiDATV RB-TV transmit system | 28 |
BATC New subscription rates | 33 |
MAX On-Screen-Display Generator | 34 |
Classic circuits – General Purpose Amplifier | 36 |
Digital-ATV - Using ODROID with the DATV-Express board | 37 |
GoPro Hero 4 | 42 |
Issue 245 September 2014
Article | Page |
---|---|
CAT14 - in words and pictures | 8 |
DVB-S on the Solent - Part 1 | 10 |
The Marconi at CAT14 | 11 |
Effect of Phase Noise on a DVB-S Signal | 14 |
DVB-S on the Solent - Part 2 | 15 |
Weak Signal Performance of DVB-S Receivers | 17 |
Geostationary ATV could be on its way! | 19 |
Museo de la Imagen - Santiago de Cuba, Cuba | 20 |
Annual Worldwide ATV QSO Party | 23 |
DVB-T with a Hides HV110 | 30 |
IARU Region 1 Conference | 31 |
A Filter for 437MHz | 32 |
Classic Circuits - a Look Through Filter for 23cms | 34 |
ATV streaming using a Mac | 35 |
Issue 244 June 2014
Article | Page |
---|---|
The Constitution of the BATC | 9 |
Video Processing Circuit | 12 |
There’s something different on Fast Scan TV | 16 |
Using a small ARM based mini TV box for digital TV | 20 |
Online ATV streams and HAMNET | 22 |
Streaming Student Robotics 2014 | 23 |
Treasurer’s Report for 2013 | 24 |
VK DATV QSO Party | 26 |
New Rigol Spectrum Analyser discoveries | 28 |
DVB-T-Receiver HV-110 | 34 |
4K – what is it? | 35 |
Classic Circuits - A Tuneable 70cm Narrowband Filter | 39 |
Issue 243 March 2014
Article | Page |
---|---|
ISS HamTV Received | 9 |
BATC CAT14 and the General Meeting | 10 |
New Repeaters on the Air | 12 |
BATC and you, the Member | 14 |
DATV-Express Project | 15 |
HamTV from the ISS | 16 |
VK6MJ - ISS Tracker | 18 |
Using the Raspberry Pi to Control an Ultram VCO | 19 |
The BATC Forum | 20 |
70cm Yagi | 22 |
Versatile Audio AGC Circuit | 23 |
Digital ATV – Using a Spectrum Analyzer | 29 |
Early Colour Cameras and their problems- Part 2 | 34 |
Classic Circuits - Remote control using DTMF | 35 |
Turning Back the Pages - CQ-TV 56 | 37 |
Late news - New Geostationary satellite; More
frequency at VHF; the latest ISS news |
39 |
Issue 242 December 2013
Article | Page |
---|---|
DX Records | 8 |
Repeater News - GB3GV | 9 |
CAT13 - the Finningley report | 11 |
A 2.5 Watt LDMOS Driver for the 1.3GHz band | 15 |
A Beginner’s Guide to Field Programmable
Gate Arrays (FPGAs) Part 2 |
18 |
10 GHz Synthesised ATV FM TX | 21 |
Early Colour Cameras and their problems- Part 1 | 21 |
Stand Alone DigiLite with an MK808 | 24 |
Classic Circuits - Black Level Clamps | 27 |
A Tutorial on Displays | 29 |
HamTV Bulletin 3 | 34 |
Digital Integrated Receiver Decoder (IRD)
for use on repeaters |
37 |
Low Cost DVB-S Receivers Suitable
For HAMTV Reception |
40 |
Issue 241 September 2013
Article | Page |
---|---|
BBC BH and Paul Marshall | 6 |
Don Reid | 7 |
An Introduction to the DTX1 Transmitter | 10 |
DTX1 1st User Review | 11 |
PGA103+ Broad Band Amplifier | 12 |
CAT13 – the BATC 2013 Convention details | 15 |
BATC Presentation for DXSpot.TV | 16 |
DXSpot.TV details and information | 17 |
BATC Treasurers Report for 2012 | 18 |
50 years of home video recording | 20 |
BATC Training – the Digital Studio part 2 | 20 |
FPGA programming for beginners. Part 1 | 21 |
Setting up a Virtual Studio | 30 |
History of Television – Monoscope Cameras | 36 |
GB3IV Repeater | 38 |
A new approach to Digital ATV repeaters in New Zealand | 40 |
DATV from the International Space Station – full specification | 44 |