Search found 13 matches

by g8lce
Sun Jul 21, 2019 11:36 pm
Forum: Raspberry Pi and Portsdown
Topic: Setting up the Raspberry Pi Video
Replies: 1
Views: 20

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...
by g8lce
Wed Jul 17, 2019 11:14 pm
Forum: Raspberry Pi and Portsdown
Topic: Setting up the Raspberry Pi Video
Replies: 1
Views: 20

Setting up the Raspberry Pi Video

This video will show the various ways the Raspberry Pi and Portsdown software can be used. It will have adverts!!! ( It helps pay for the web space ) https://www.youtube.com/watch?v=6bivHLurNvI If you have questions about the setting up of the Raspberry Pi for use with Portsdown software, ask them h...
by g8lce
Wed Feb 27, 2019 11:00 pm
Forum: Reception of GB3NQ
Topic: G8LCE to GB3NQ signal path
Replies: 0
Views: 88

G8LCE to GB3NQ signal path

GB3NQ from G8LCE.PNG
by g8lce
Fri Feb 08, 2019 10:22 am
Forum: Equipment
Topic: Modifications to Comtech modules
Replies: 0
Views: 110

Modifications to Comtech modules

To retain these mods I attach a copy of this web page.

http://www.g8lce.com/mods.html

The RX mod seemed to work for me.
by g8lce
Thu Feb 07, 2019 10:57 am
Forum: G8LCE
Topic: Modification of RX 1
Replies: 0
Views: 145

Modification of RX 1

I have modified RX 1 Comtech RX with the two mods from G1MFG (Modification to improve received picture quality ) found at this link http://f5ad.free.fr/Liens_coupes_ATV/G/G1MFG%20Modif%20des%20modules%20comtech.htm It did not seem to improve the picture on the web interface BUT the RPI Portsdown Str...
by g8lce
Wed Feb 06, 2019 5:32 pm
Forum: Reception of GB3NQ
Topic: NTSC ident ??
Replies: 0
Views: 95

NTSC ident ??

Just setup my TX to get 4MHz bandwidth as best I could using SDR and SDRAngel. Then I setup my Comtech RX to give a reasonable signal on the scope. It is about 200mv so I will put a video amp inline sometime. I have done the two mods to the contech to improve the rx signal and the streamer works muc...
by g8lce
Tue Feb 05, 2019 11:47 pm
Forum: G8LCE
Topic: Setup deviation and video RX levels
Replies: 0
Views: 75

Setup deviation and video RX levels

The deviation level is being setup for 4Mhz bandwidth for 1 volt of video and then the RX video level will be set to I volt with this signal. The bandwidth is being setup with sdr and spectrum analyzer. 5th February 2019.
by g8lce
Sun Feb 03, 2019 10:59 pm
Forum: Reception of GB3NQ
Topic: G8LCE images via GB3NQ on 3/2/19 received at G3MCD
Replies: 2
Views: 136

Re: G8LCE images via GB3NQ on 3/2/19 received at G3MCD

Hi Keith, Thanks for the pictures. Only one thing wrong and it points to a problem with the repeater! I have been looking at other problems with streaming to BATC using a RPi. It would stream from a camera but not from this video source. The problem was a switch on a hdmi to composite video converte...
by g8lce
Sat Jan 26, 2019 10:16 am
Forum: Reception of GB3NQ
Topic: Recording of GB3NQ
Replies: 0
Views: 97

Recording of GB3NQ

I have now changed the settings of the video to ip device such that when a stable sync is seen from GB3NQ at G8LCE, the video is sent to a networked hard disc. This will record for 30 seconds after the sync detection stops. I will try and set this to send to the BATC streamer in the next week or so....
by g8lce
Fri Jan 25, 2019 10:31 am
Forum: G8LCE
Topic: Reset of RX 1
Replies: 0
Views: 99

Reset of RX 1

I have reset RX 1 and added the reception time and date at the top of screen. This only shows when good syncs are detected and also records the signal on a server. I may use this to send to the BATC server if I can get the system to work! Tried to use a satellite rx instead of the commtech but rx no...