BATC Wiki - User contributions [en-gb]

GB3ZZ

2024-12-10T10:38:07Z

G8VPG:

Because of the cost of electricity GB3ZZ is now operating as a "part time repeater" (0900-1300 & 1530-1830 GMT).

The streamer operates from 0730-1900 GMT.

Locator: IO81RM.

Location: Filton, north Bristol.

OUTPUT - 1316MHz DVB-S2 1.5Ms/s H264 FEC1/2 horizontally polarised, now single channel Portsdown transmitter.

23cm inputs 1249MHz DVB-S 4M/s H262 and 1249MHz DVB-S/S2, 1.5Ms, 1Ms, 500ks or 333ks, H262/H264/H265 Ryde scanning receiver, all horizontally polarised.

There is a vertically polarised input on 437MHz, DVB-S/S2, 2Ms, 1.5Ms, 1Ms & 333ks, Ryde scanning receiver. The sensitivity of this input is much less than the 1249MHz inputs because it shares a dual band vertical also used for 144.750MHz talkback monitoring and does not have a masthead pre-amp.

BATC stream: https://batc.org.uk/live/gb3zz Reboots 0800 and 1600 (GMT).

Website: http://www.stvg.co.uk
Keeper G8VPG (Shaun).

Talkback on 144.750 MHz vertically polarised and relayed on ATV sound.

GB3ZZ

2024-12-10T08:25:20Z

G8VPG:

Because of the cost of electricity GB3ZZ is now operating as a "part time repeater" (0900-1300 & 1530-1830 GMT).

The streamer operates from 0730-1900 GMT.

Locator: IO81RM.

Location: Filton, north Bristol.

OUTPUT - 1316MHz DVB-S2 1.5Ms/s H264 FEC1/2 horizontally ploarised, now single channel Portsdown transmitter.

23cm inputs 1249MHz DVB-S 4M/s H262 and 1249MHz DVB-S/S2, 1.5Ms, 1Ms, 500ks or 333ks, H262/H264/H265 Ryde scanning receiver, all horizontally polarised.

There is a vertically polarised input on 437MHz, DVB-S/S2, 2Ms, 1.5Ms, 1Ms & 333ks, Ryde scanning receiver. The sensitivity of this input is much less than the 1249MHz inputs because it shares a dual band vertical also used for 144.750MHz talkback monitoring and does not have a masthead pre-amp.

BATC stream: https://batc.org.uk/live/gb3zz Reboots 0800 and 1600 (GMT).

Website: http://www.stvg.co.uk
Keeper G8VPG (Shaun).

Talkback on 144.750 MHz vertically polarised and relayed on ATV sound.

GB3ZZ

2024-12-09T08:46:24Z

G8VPG:

Because of the cost of electricity GB3ZZ is now operating as a "part time repeater" (0900-2100 GMT; 1000-2200 BST)

Locator: IO81RM

Location: Filton, north Bristol

OUTPUT - 1316MHz DVB-S2 1.5Ms/s H264 FEC1/2 now single channel Portsdown transmitter

23cm inputs 1249MHz DVB-S 4M/s H262 and 1249MHz DVB-S/S2, 1.5Ms, 1Ms, 500ks or 333ks, H262/H264/H265 Ryde scanning receiver

Inputs & output horizontally polarised

BATC stream: https://batc.org.uk/live/gb3zz Reboots 0800 and 1600 (GMT)

Website: http://www.stvg.co.uk
Keeper G8VPG (Shaun)

Talkback on 144.750 MHz and relayed on ATV sound

Wood & Douglas FM TV equipment

2016-10-17T18:16:41Z

G8VPG:

During the 1980's, Wood & Douglas produced a range of 1.3GHz FM TV equipment that gave many amateurs their first taste of microwave ATV operation.

'''VIDIF''' 

The VIDIF was an FM TV demodulator board with an IF input of 50MHz. Separate boards were required for video de-emphasis (VP/D1) and the sound sub-carrier (FIF1).

[[File:VIDIFp1.pdf]] VIDIF descriptive text 

[[File:VIDIFp2.pdf]] VIDIF circuit diagram & pcb layout 

[[File:VIDIFp3.pdf]] VIDIF component list 
 
'''VP/D1''' 

The VP/D1 was a dual function board for video pre-emphasis (for transmission use) or de-emphasis (for reception use). Links select which function is enabled. The addition of these simple boards made a big improvement to picture quality (1-2 picture grades). 
 
[[File:VPD1p1.pdf]] VP/D1 circuit diagram & pcb layout 
[[File:VPD1p2.pdf]] Emphasis characteristic curves 
 
'''FIF1''' 
 
The FIF1 was a 6MHz sound sub-carrier reception board to go with the VIDIF board above.

 
[[File:FIF1p1.pdf]] FIF1 description 
[[File:FIF1p2.pdf]] FIF1 pcb layout 
[[File:FIF1p3.pdf]] FIF1 component list 
 
'''1250DC50''' 
 
The 1250DC50 was a tunable downconverter that tuned the entire 1.3GHz band down to an IF of 50MHz. Unlike most W&D equipment, this item was only available as a factory assembled and boxed item.

 
 
[[File:1250DC50p1.pdf]] 1250DC50 description 
[[File:1250DC50p2.pdf]] 1250DC50 connections 
[[File:1250DC50p3.pdf]] 1250DC50 circuit diagram 
[[File:1250DC50p4.pdf]] 1250DC50 pcb layout 
[[File:1250DC50p5.pdf]] 1250DC50 alignment instructions

Wood & Douglas FM TV equipment

2016-10-17T18:15:03Z

G8VPG:

During the 1980's, Wood & Douglas produced a range of 1.3GHz FM TV equipment that gave many amateurs their first taste of microwave ATV operation.

'''VIDIF''' 

The VIDIF was an FM TV demodulator board with an IF input of 50MHz. Separate boards were required for video de-emphasis and the sound sub-carrier.

[[File:VIDIFp1.pdf]] VIDIF descriptive text 

[[File:VIDIFp2.pdf]] VIDIF circuit diagram & pcb layout 

[[File:VIDIFp3.pdf]] VIDIF component list 
 
'''VP/D1''' 

The VP/D1 was a dual function board for video pre-emphasis (for transmission use) or de-emphasis (for reception use). Links select which function is enabled. The addition of these simple boards made a big improvement to picture quality (1-2 picture grades). 
 
[[File:VPD1p1.pdf]] VP/D1 circuit diagram & pcb layout 
[[File:VPD1p2.pdf]] Emphasis characteristic curves 
 
'''FIF1''' 
 
The FIF1 was a 6MHz sound sub-carrier reception board to go with the VIDIF board above.

 
[[File:FIF1p1.pdf]] FIF1 description 
[[File:FIF1p2.pdf]] FIF1 pcb layout 
[[File:FIF1p3.pdf]] FIF1 component list 
 
'''1250DC50''' 
 
The 1250DC50 was a tunable downconverter that tuned the entire 1.3GHz band down to an IF of 50MHz. Unlike most W&D equipment, this item was only available as factory assembled and boxed item.

 
 
[[File:1250DC50p1.pdf]] 1250DC50 description 
[[File:1250DC50p2.pdf]] 1250DC50 connections 
[[File:1250DC50p3.pdf]] 1250DC50 circuit diagram 
[[File:1250DC50p4.pdf]] 1250DC50 pcb layout 
[[File:1250DC50p5.pdf]] 1250DC50 alignment instructions

Wood & Douglas FM TV equipment

2016-10-17T18:10:46Z

G8VPG:

During the 1980's, Wood & Douglas produced a range of 1.3GHz FM TV equipment that gave many amateurs their first taste of microwave ATV operation.

'''VIDIF''' 

The VIDIF was an FM TV demodulator board with an IF input of 50MHz. Separate boards were required for video de-emphasis and the sound sub-carrier.

[[File:VIDIFp1.pdf]] VIDIF descriptive text 

[[File:VIDIFp2.pdf]] VIDIF circuit diagram & pcb layout 

[[File:VIDIFp3.pdf]] VIDIF component list 
 
'''VP/D1''' 

The VP/D1 was a dual function board for video pre-emphasis (for transmission use) or de-emphasis (for reception use). Links select which function is enabled. The addition of these simple boards made a big improvement to picture quality (1-2 picture grades). 
 
[[File:VPD1p1.pdf]] VP/D1 circuit diagram & pcb layout 
[[File:VPD1p2.pdf]] Emphasis characteristic curves 
 
'''FIF1''' 
 
The FIF1 was a 6MHz sound sub-carrier reception board to go with the VIDIF board above.

 
[[File:FIF1p1.pdf]] FIF1 description 
[[File:FIF1p2.pdf]] FIF1 pcb layout 
[[File:FIF1p3.pdf]] FIF1 component list 
 
'''1250DC50''' 
 
The 1250DC50 was a tunable downconverter that tuned the entire 1.3GHz band down to an IF of 50MHz. Unlike most W&D equipment, this item was only available as factory assembled and boxed item.

Wood & Douglas FM TV equipment

2016-10-17T18:07:50Z

G8VPG:

File:1250DC50p5.pdf

2016-10-17T18:05:16Z

G8VPG:

File:1250DC50p4.pdf

2016-10-17T18:05:00Z

G8VPG:

File:1250DC50p3.pdf

2016-10-17T18:04:41Z

G8VPG:

File:1250DC50p2.pdf

2016-10-17T18:04:25Z

G8VPG:

File:1250DC50p1.pdf

2016-10-17T18:04:07Z

G8VPG:

File:FIF1p3.pdf

2016-10-17T18:03:48Z

G8VPG:

File:FIF1p2.pdf

2016-10-17T18:03:30Z

G8VPG:

File:FIF1p1.pdf

2016-10-17T18:03:08Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T18:02:29Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T17:41:30Z

G8VPG:

File:VPD1p2.pdf

2016-10-17T17:39:13Z

G8VPG:

File:VPD1p1.pdf

2016-10-17T17:38:48Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T17:37:30Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T17:37:05Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T17:33:31Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T17:25:51Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T17:24:36Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T17:24:10Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T17:21:48Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T17:19:27Z

G8VPG:

During the 1980's, Wood & Douglas produced a range of 1.3GHz FM TV equipment that gave many amateurs their first taste of microwave ATV operation.

'''VIDIF'''
The VIDIF was an FM TV demodulator board with an IF input of 50MHz. Separate boards were required for video de-emphasis and the sound sub-carrier.

[[File:VIDIFp1.pdf]]

Wood & Douglas FM TV equipment

2016-10-17T17:18:41Z

G8VPG:

Wood & Douglas FM TV equipment

2016-10-17T17:18:11Z

G8VPG:

During the 1980's, Wood & Douglas produced a range of 1.3GHz FM TV equipment that gave many amateurs their first taste of microwave ATV operation.

'''VIDIF'''VIDIF'''Bold text'''
The VIDIF was an FM TV demodulator board with an IF input of 50MHz. Separate boards were required for video de-emphasis and the sound sub-carrier.

[[File:VIDIFp1|thumbnail|VIDIF descriptive text]]

Wood & Douglas FM TV equipment

2016-10-17T14:59:43Z

G8VPG:

During the 1980's, Wood & Douglas produced a range of 1.3GHz FM TV equipment that gave many amateurs their first taste of microwave ATV operation.

'''Bold text'''VIDIF'''Bold text'''
The VIDIF was an FM TV demodulator board with an IF input of 50MHz. Separate boards were required for video de-emphasis and the sound sub-carrier.

[[File:VIDIFp1|thumbnail|VIDIF descriptive text]]

Wood & Douglas FM TV equipment

2016-10-17T14:58:11Z

G8VPG: Created page with "During the 1980's, Wood & Douglas produced a range of 1.3GHz FM TV equipment that gave many amateurs their first taste of microwave ATV operation. '''Bold text'''VIDIF'''Bold..."

File:VIDIFp3.pdf

2016-10-17T14:54:53Z

G8VPG: VIDIF component list

VIDIF component list

File:VIDIFp2.pdf

2016-10-17T14:54:22Z

G8VPG: VIDIF circuit diagram & pcb layout

VIDIF circuit diagram & pcb layout

File:VIDIFp1.pdf

2016-10-17T14:53:24Z

G8VPG: VIDIF text

VIDIF text

BATC Wiki

2016-10-17T14:38:01Z

G8VPG: /* ATV Equipment manuals and schematics */

'''Welcome to the British Amateur Television Club Wiki''' - the place to find information on on all Amateur Television related equipment and projects.

''This is a reference library - please use the [http://www.batc.org.uk/forum/ BATC forum] for discussion on these or any other items.''

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 please observe any copyright restrictions on your material you use. However, before you can add or edit content you will need to [[Registering|register for an account]].

== Contents ==
* [[Registering]] on the BATC wiki
=== New to Amateur TV? ===
* Get the basics in our collection of [[Getting Started|Getting Started guides]]

=== BATC Information and services===
* [[Joining the BATC]]
* [[Renewing your membership]]
* [[Resetting your password]]
* The [[BATC.TV video streaming service]]
* The [[BATC video archive]]
* The [[BATC forum]]
* The [[BATC shop]]

=== CQ-TV Magazine ===
* [[Index of articles]]
* [[Archive edition|Archive editions]] download
* [[Project software]] download

===BATC Event Streaming Equipment===
* [[Equipment Description]]

=== Presentations from BATC conventions ===
* [[Presentations from CAT 16]] Presentations and links to the videos from the 2016 convention.
* Video Recordings from previous ATV Conventions can be found on the [https://www.youtube.com/channel/UCUWLnUZllytlcCFd93tnBzw BATC YouTube Channel].

=== Getting on the air with ATV ===
The ATV bands:
* [[146 MHz RB-TV]]
* [[70cms Analogue TV]]
* [[70cms DATV]]
* [[23cms Analogue TV]]
* [[23cms DATV]]
* [[13cms]]
* [[3.4 GHz DATV]]
* [[5.6 GHz]]
* [[10 GHz]]

The different ATV modes
* [[Reduced bandwidth TV]] (RB-TV)

=== Operating ===
* [[Directory of portable sites]] suitable for ATV and microwave operation
* [[Mapping tools]] including finding the QRA locator of a site, UK postcode to Lat and Long conversion and a topographic overlay for Google maps
* [[Propagation tools]]
* [[Known DATV DX Records]] - a list of Known DX Records for Digital-ATV (last revised 2016-09-16)

===ATV repeaters===
* [[UK ATV repeaters]]
* [[USA ATV repeaters]]
* [[Australian TV repeaters]]

* [[Technical topics for ATV repeater builders]]

=== ATV construction projects ===
* [[MiniTioune]] - the DATV USB tuner project
* [[DigiThin]] - plug in QPSK modulator module for Rpi
* [[DTX1 TS]] - interface board to take in TS streams to the DTX1
* [[RpiDATV]] - software for the Rpi
* [[RBTVMOD]] - variable rate RB-TV mdulator for the Rpi
* [[DATVExpress]] - SDR hardware based DATV transmitter covering 70 - 2450 MHz
* [[RPi Test Card]] - Raspberry Pi based Animated Test Card Generator
* [[SUP2400 mods]] - SUP2400 70cms to L band upconverter hardware modifications
* [[SUP2400 DiSEqC]] - SUP2400 70cms to L band upconverter DiSEqC control PCBs
* [[PE4302]] - PE4302 variable attenuator project
* [[ADF435x PIC]] - PIC controllers for Chinese ADF4350/4351 boards

=== ATV Equipment manuals and schematics ===
* [[Comtech module]] - 23cms and 13cms ATV Tx and Rx circuits and guides
* [[Solent ATV units]] - Tx and Rx circuits and information
* [[Wood & Douglas FM TV equipment]] - Circuits, pcb layouts and information

=== Ex commercial broadcast equipment manuals ===
* [[NDS System 3000]]
* [[NDS Alteia rx]]

=== Test equipment manuals ===
For HP and Agilent equipment see the [https://groups.yahoo.com/neo/groups/hp_agilent_equipment/info Yahoo group]

=== Other equipment information related to ATV ===