1988 - 1992 CQ-TV 141 to CQ-TV 160

Issue 160 November 1992

Article	Page
13cm ATV – It’s as easy as this!	59
70cm TVI filter	41
BSB on 3cm!!	56
Beyond TTL - part 4	51
Camtech TXV4000 PLL video transmitter	43
Digitalkers revisited	34
Expanding the Pace SS6000 satellite receiver	64
Fade to black with A/B mixer	36
Lighting ATV - part 1	17
More on BSB receivers	58
NICAM decoder project	21
SSTV - A new British scan converter kit	84
Synclock unit for the BBC home computer	9
Tidal propagation	38

Issue 159 August 1992

Article	Page
10GHz feeder for Amstrad dish – construction	57
24cm Walk about Hat Aerial	23
Circuit Notebook 47 - BNC coax attenuators	59
Circuit notebook 47 - Portable power supplies	59
Digital SSTV TX coder	8
Hi-Fi sound on 24cm ATV	34
In the Studio No. 14 - 4 channel audio mixer	51
Modifying BSB receivers for D2 MAC signals	36
More on SSTV standards	63
NICAM system explained	24
PUFF - Microwave StripLine CAD program	20
The VK Antennas Quad Loop	78
ViewPort VGA SSTV system for the PC computer	70

Issue 158 May 1992

Article	Page
ATV system by F3YX	13
Amiga Bits and Pieces	34
Analyser III - Analogue cct simulator for the PC	83
Beyond TTL - part 3 - I/O (PPI)	24
DMAC Packet - An Overview	41
Pro Video Companion	75
Remotely Tuned Converter	73
SSTV Standards debate	68
Simple sync stripper	20
The Saarparabol Receiver	66
Video interface for the Philips V2000	21
Video switcher (16 input)	36

Issue 157 February 1992

Article	Page
23cm ATV transmitter (construction)	32
Aerials - more on phasing	66
Beyond TTL - part 2, EPROM program for Z80	37
Circuit notebook 45 - The ’S’ meter	68
Fade to Black (improved from ATC page 11)	19
HDTV? - What’s that then?	47
Hi-Res v1.5 SSTV software ( Robot 1200 + PC )	52
I 2 C ATV station (BATC project)	28
Setting up yer DEVE’ (FM deviation measurement)	26
Spectrum Analyser (not so simple)	21
The Tele Snapper	9
Using the 48k Spectrum as an I 2 C keyboard	64
Using the BATC BBS	78

Issue 156 November 1991

Article	Page
10GHz ATV the easy way - part 4	56
A 5-element video filter	32
A Detachable high power E-Plane probe	48
BATC at the Hamfest	73
BATC bulletin board	76
Beyond TTL - part 1, Microprocessors	50
Constructing Aerial phasing lines	25
How to get into Sat-TV with a Melon not a dish	71
In the Studio, part 13 Faders and Effects amps	33
More Cropredy board tips	26
More on THAT video filter (see 155)	77
Pulsar - Digital Cct Simulator software package	20
Repeater Group affiliations	76
SSTV - A new standard?	28
S-VHS/CVBS to RGB converter	9
Using Oscilloscopes - part 9, (conclusion)	40

Issue 155 August 1991

Article	Page
Big Brother - a look at ’Video Studio Professional’	58
Broadcast band DX-TV reception	68
Component Television	18
Logic circuits - part 10 (Conclusion)	33
Microwave plumbing! Circular waveguide for 3cm	31
Mods to the Cropredy Test Card	21
SSTV revisited – updates	54
Second- hand Sony cameras	30
Show report - Convention ’91	64
TV Repeater power levels	67
Using Oscilloscopes - part 8	45
Video Line Selector	9
Video Sweep Generator	52
Z-match II Smith chart RF design software package	24

Issue 154 May 1991

Article	Page
10GHz the easy way - part 3	33
Broadcast band DX-TV reception	65
Capaciting Capacitors, a description	17
Easy-PC CAD package	53
In the Studio - part 12	61
Logic circuits - part 9 - linear OP amps	40
Programming EPROMs for the Teletext Pattern Gen	23
TVRO in the early days	22
Talking Repeaters	28
Two quickies from Eric, picture splitter + SSTV switch	78
Using Oscilloscopes - part 7	45
Video Mixing Desk & Effects Generator - Part 4	10

Issue 153 February 1991

Article	Page
10GHz the easy way - part 2	64
ATV and how to get started	17
Broadcast band DX-TV reception	73
Colour on 70cm? VSB it!!	60
Digital video for ATV via phase 3 & 4 satellites	38
G8MWR Microwave program	43
GB3ZZ - The inside story	30
In the studio - part 11 - Chroma keying	27
Logic circuits - part 8	45
Motoring around (satellite dish)	35
Tuned UHF preamplifier	55
Using oscilloscopes - part 6	21
Video filter for 70cm	20
Video mixing desk & effects generator - part 3	9

Issue 152 November 1990

Article	Page
10GHz the easy way - simple station setup	57
ATV, HDTV and all that - acronyms explained	75
Broadcast band DX-TV reception	65
Building the Teletext Pattern Generator (ATV)	45
Camtech video IF board	19
E.H.C 24cm FM-ATV receiver	77
In the Studio - Part 10	42
Introduction to the I 2 C book	18
Logic circuits - part 7	28
Modifying a ’SKYSCAN’ LNB for 24cm	53
Software notebook - VT clock (Sinclair BASIC)	48
Using oscilloscopes - part 5	49
Video Mixing Desk and Effects Generator - Part 2	9

Issue 151 August 1990

Article	Page
BATC accounts for 1989	69
Broadcast video tape	25
Broadcast band DX-TV reception	78
Colour correction - part 3	45
Convention 90 - Show report	17
In the Studio - part 9 - Keying video	20
Logic circuits - part 6	52
Obituary - Mike Barlow G3CVO - Founder BATC	9
Robot 1200C analogue panel mods	60
SECAM reception on a Thorn TX9 chassis	64
SSTV AVT system for the Amiga	71
Satellite Receiver Preamp	38
Using oscilloscopes - part 4	33
Video Mixing Desk & Effects Generator	10

Issue 150 May 1990

Article	Page
	18
AZTEC 24cm ATV TX and preamp	45
Camera tubes explained - part 5	34
Colour Correction - part 2	24
Colour SSTV - almost state of the art	72
GB3TG - the gateway!	81
Logic circuits - part 5	57
New SSTV software (for BBC Master)	9
RGB to composite video converter	65
Transistor substitution [*151]	39
Twenty years of ATV	29
Using oscilloscopes - part 3	78

Issue 149 February 1990

Article	Page
A 24cm Phase-lock-loop exciter for ATV	23
A high performance preamp for 24cm	36
A versatile camcorder cable adapter	34
ATV atop Mont Blanc	77
Broadcast Band DX TV reception	38
Camera tubes explained - part 4	50
Colour correction - part 1	59
Logic circuits - part 4	66
Picture-in-Picture, new technology	43
SSTV - The AVT system secrets revealed	79
Satellite chat	29
Super-VHS to RGB converter	9
The BATC goes to Eire	55
The PYE Lynx yet again	35
Using oscilloscopes - part 2	20

Issue 148 November 1989

Article	Page
A Parametric tripler for 24cm	22
ATV and the Electron computer	39
Broadcast band DX-TV reception	49
Camera Tubes explained - part 3	74
Computer controlled SSTV (for the BBC)	35
DIY Robot-1200 description of self built	45
EPROMS - description of	41
Fugi lens modification (auto to manual)	26
More on the Amiga - titling etc	70
Stereo audio pre-amp	56
The CAMTECH 24cm FM ATV TX	11
Tuneable intercarrier sound IF for DX-TV reception	60
Using oscilloscopes - part 1	31
Video distribution amplifier [TB2]	44

Issue 147 August 1989

Article	Page
A video mixer/switcher	28
ATV and the AMIGA	66
ATV at the Pasedena Rose Show	62
BATC accounts for year ended 31st December 1988	10
Camera Tubes explained - part 2	43
Elantec Video chips (line drivers - applications)	50
G4ENA SSTV RX Converter Mod (vertical intermod)	64
Logic circuits - part 3, counters and triggers	77
More LYNX ideas	49
NICAM stereo digital sound	73
Pictures from Space	33
Precision Measuring Box	12
TV reception and the Weather	74
The 1989 BATC show	21
Trevor’s camera (SONY AVC3450CE)	76
Tube collection	36
Video recording amplifier	53

Issue 146 May 1989

Article	Page
’KAGA’ monitor interface	35
33cm ATV Receiver	72
405-Line Interest Group	34
900MHz takes off	70
ASTRA Satellite info	78
ATV Quarterly Review	31
BETA video recorders for 70cm	80
Birth of the BATC	15
Broadcast band DX-TV reception	59
Camera Microphone Amplifier	28
Camera Tubes explained - part 1	55
Component Suppliers List	74
Forty years ago in CQ-TV	13
Logic circuits - part 2, Basic gates	41
Microwave Oven as an FM TV Transmitter	17
Odds & Sods from Andy	63
Old Camera Register	23
Satellite chat	82
Software notebook - EPR calculator	37
Solent TX - The last word	39
VHF/UHF Wideband Amplifier	52

Issue 145 February 1989

Article	Page
AM ATV modulator (construction)	19
BATC Convention 1989 preview	10
Broadcast band DX-TV reception	45
Chequerboard pattern generator	12
Coax cable splitter	54
In place of the tube - part 5, X-Y CCDs	49
Intercarrier sound demodulator	43
Intercarrier sound modulator	41
Logic circuits - part 1, Introduction to logic	32
Panasonic WJ-MX10 Digital mixer	77
Polarotor controller	56
Satellite chat	59
Satellites and all that	69
Slot aerials	51
Solent 24cm Transmitter - The epilogue	37
Sound Image video processor	79
Video to Decoder interface (computer to PAL coder)	70

Issue 144 November 1988

Article	Page
’Video’ tuners for 70. (mods to VCR tuners)	63
50MHz FM-TV test source	58
A VSWR bridge. (construction of)	78
A limiter for FM-TV	17
BATC - Purveyors of Video to the RSGB	48
Broadcast band DX-TV reception	22
Dot matrix. Character rounding for SSTV converter	46
Frequency counter (high frequency for 24cm)	18
GaAs FET Converter for 24cm ATV	6
In place of the tube - part 4, Colour CCDs	60
Just a MMIC. (microwave amplifier)	26
Philips KT-3 colour television on 70cm	14
Proposals for ATV on future space missions	51
Software notebook - 13, BBC colour bars	31
TV repeater logic design	73
Test gear explained	65
The ASTEC TVRO tuner. Tuning for Sky, Superchannel	39
Troubleshooting the G2WCY SSTV converter	44
UK ATV repeaters (complete up to date list)	59
Videocassette Recorders - Book review	12
Wideband video processing	69

Issue 143 August 1988

Article	Page
A repeater application - licence application	26
BATC accounts for 1987	64
BATC at Drayton Hamvention in the USA	32
Boards for the CQ-TV 134 PAL coder	76
Broadcast band DX-TV reception	44
CQ-TV award - General information	63
Colour board for the CQ-TV 129 sync processor	42
Colour on the BBC Master computer	7
Happy birthday EATWG	84
In place of the tube - part 3, CCD video amps	22
Mainly SSTV, Notes for Spectrum computer	20
Monitor interface, conversion for composite video	70
Monitoring the ROBOT 1200C	62
Philips MSX-2 micro video capabilities	66
Pulse cross from an unconventional SCART	24
Satellite TV news, DBS, decoders	50
Satellite chat	52
Spectrum EPROM programmer (new)	12
Static protection	11
Television receiver field strength indicator	60

Issue 142 May 1988

Article	Page
ATV program for the BBC, logos and locator	68
An FM-TV modulator using the NE564	33
Broadcast band DX-TV reception	50
In place of the tube - part 2, CCD scanning	56
Mainly SSTV - Computer programs reviewed	30
On screen video level indicator	6
Pulse and bar testing	42
Report for FM-TV, draft regulations	70
Satellite TV news, Scramblers, ASTEC ’S’ meter	36
Solent 24cm Transmitter	46
Sound sub-carrier generator	63
Specmanship - part 5, RF power	66
Spectrum Freezer - new software	54
Starting on 70cm, an introduction to ATV on 70	18
TV IF pre-amplifier	79
Teletron monitor - A machine code monitor	16
Towards better editing	34

Issue 141 February 1988

Article	Page
1.3GHz power amplifier for a repeater	52
23cm ATV ’down under’	30
A 10GHz station described	20
A computerised log - BBC software	35
A new ’1043’ - sync generator	12
A new video switch (TEA2014)	43
A power divider/combiner, alternative to Wilkinson	79
Auto burst phasing	51
Broadcast band DX-TV reception	32
In place of the tube - part 1, The CCD	75
LM1881 video sync separator explained	40
Let’s build a repeater - part 3, A/V switch	44
Paging the Cropredy - testcard expansion	55
Software notebook 12 - Spectrum MAIDENHEAD locator	11
Sound in the studio - part 2, Balancing	57
Specmanship - part 4 – Modulation	6
Term trouble? - ’black & burst’ explained	19
The Solent/Worthing ATV transmitter – notes	14