Search found 24 matches

by g8lce
Tue Jul 07, 2020 11:00 pm
Forum: 5.6GHz ATV
Topic: hi from plymouth
Replies: 1
Views: 209

Re: hi from plymouth

Hi Brett, I did n't see you post until today! I hope you have had time to get your 5.6GHz ATV system to work. We have been having 'fun' with GB3NQ and ATV/DATV down here. I have the 2W amp but it does seem to cause a few problems with power use. I find that it easily gets mains hum from cheap power ...
by g8lce
Mon Apr 06, 2020 10:28 am
Forum: GB3NQ Digital Conversion
Topic: 437MHz Linear DATV Amplifier for TX into GB3NQ
Replies: 3
Views: 1189

Re: 437MHz Linear DATV Amplifier for TX into GB3NQ

Here is another photo to show where the track to be grounded for the output bias to work....
TTRX4 Doctored.jpg
Martin G8LCE
by g8lce
Fri Apr 03, 2020 9:10 am
Forum: GB3NQ Digital Conversion
Topic: 437MHz Linear DATV Amplifier for TX into GB3NQ
Replies: 3
Views: 1189

Re: 437MHz Linear DATV Amplifier for TX into GB3NQ

Here are some more pictures of the mods to the linear...
Photos by Keith G3MCD doctored by me!
TTRX3 doctored.jpg
TTRX1 doctored.jpg
by g8lce
Mon Feb 24, 2020 3:05 pm
Forum: GB3NQ Digital Conversion
Topic: 437MHz Linear DATV Amplifier for TX into GB3NQ
Replies: 3
Views: 1189

Re: 437MHz Linear DATV Amplifier for TX into GB3NQ

Here are some more photos of my amplifier
The last one might be the clearest when zoomed in as I used flash

DSC05321.JPG
DSC05320.JPG
DSC05319.JPG
DSC05318.JPG
DSC05317.JPG
DSC05316.JPG
DSC05323.JPG
by g8lce
Fri Jan 17, 2020 10:02 am
Forum: Equipment
Topic: iBase Si38 computer for amateur radio use
Replies: 0
Views: 157

iBase Si38 computer for amateur radio use

I have been using a few of these computers for various things. Navigation computer on a boat. Astronomical computer in remote observatory for controlling telescope etc. and controlling cameras. Controlling a Pluto or Lime via DATV Express etc. Minitioune Receiver. So why? They are cheap £30 off Ebay...
by g8lce
Wed Jan 15, 2020 1:26 pm
Forum: DATV
Topic: 437MHz Nokia Linear
Replies: 0
Views: 149

437MHz Nokia Linear

by g8lce
Thu Nov 14, 2019 9:53 am
Forum: Reception of GB3NQ
Topic: Waveform output on RX 1
Replies: 1
Views: 324

Re: Waveform output on RX 1

This has now been updated with a Videotek 300 monitoring device. It has a XVGA output that goes into one of the multi-video inputs of a AMX 3155HD and gets converted to HDMI and output to a HDMI to composite converter. This then goes to a Axis video to LAN converter and then out to the Internet. The...
by g8lce
Wed Nov 06, 2019 11:40 am
Forum: Reception of GB3NQ
Topic: Waveform output on RX 1
Replies: 1
Views: 324

Waveform output on RX 1

I have put the extra screen below RX 1 which should be GB3NQ RX here in Falmouth. When I remember and have the computer running, this will be the output of a scope showing the video levels of the signal. You can therefore compare the output level of the beacon with your own signal. The display is no...
by g8lce
Wed Jul 24, 2019 4:28 am
Forum: Raspberry Pi and Portsdown
Topic: Setting up the Raspberry Pi Video
Replies: 2
Views: 469

Re: Setting up the Raspberry Pi Video

Here is a further video to show a few more things that may be useful to new users.

https://www.youtube.com/watch?v=YcLAAsXeMD4

There will be more videos as questions are asked and I remember other points. I will put more on g8lce.com when I have time.

Martin - G8LCE
by g8lce
Sun Jul 21, 2019 11:36 pm
Forum: Raspberry Pi and Portsdown
Topic: Setting up the Raspberry Pi Video
Replies: 2
Views: 469

Re: Setting up the Raspberry Pi Video

Hi Keith, I will be making some more videos to follow. I will make one on programming a SD memory card using the information from BATC. Also one on controlling the Raspberry Pi from the Windows interface and putty. There is a trick to get the interface back when you lose it. I will also explain vMix...