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Re: Problem in mode change on AO-51



We had a little problem switching to L FM. We'll try to get it straightened 
out on the morning passes here.

73, Drew

----- Original Message ----- 
From: "Greg D." <ko6th_greg@hotmail.com>
To: "Luc Leblanc" <lucleblanc6@videotron.ca>; <amsat-bb@amsat.org>
Sent: Thursday, September 25, 2008 3:07 AM
Subject: [amsat-bb] Re: Problem in mode change on AO-51



Hi Luc,

I tried AO-51's 03:25z pass this evening (8:25 pm PDT), and all I heard was 
a carrier for the first few minutes of the pass.  Then the carrier suddenly 
dropped out for about half of the pass (no signal at all), only to return 
towards the end.  I tried uplinking on 1268, with calculated doppler, in 
both FM and USB, and heard nothing on the downlink which was essentially 
full quieting.  Perhaps I didn't listen hard enough, but my uplink has been 
used successfully with the recent mode L/S experiments, so I know it's ok.

So, something odd is happening up there.

Greg  KO6TH


----------------------------------------
> From: lucleblanc6@videotron.ca
> To: amsat-bb@amsat.org
> Date: Wed, 24 Sep 2008 20:21:39 -0400
> CC: eu-amsat@yahoogroups.com
> Subject: [amsat-bb]  Problem in mode change on AO-51
>
>
> Around 0008 UTC the change of mode on AO-51 from U/fm and L/usb to U/fm 
> and L/fm seems to not working. The noise drop and only a carrier
> remain on U  where i was able to hear my downlink from 1278 usb very very 
> weak. Switching my L uplink to FM produce also a very weak signal
> but perfectly clear. Could be on the other west pass someone will be able 
> to give some report.
>
> Thank's
>
>
>
> "-"
>
>
> Luc Leblanc VE2DWE
> Skype VE2DWE
> www.qsl.net/ve2dwe
> WAC BASIC CW PHONE SATELLITE
>
>
>
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