[amsat-bb] Uplink frequency of FM satellites

Ronald G. Parsons w5rkn at w5rkn.com
Tue Aug 9 16:50:44 UTC 2016


I had a little time to test just now before AO-85 got too busy. I was trying to change a lot of things but at the time of the test, uplink 435175 LHCP and LHCP on the downlink was the best. Of course a short time later RHCP was better. "Tumbling Tumbleweeds"
Ron W5RKN

From: Ronald G. Parsons 
Sent: Tuesday, August 09, 2016 10:20 AM
To: Paul Stoetzer 
Cc: AMSAT-BB 
Subject: Re: [amsat-bb] Uplink frequency of FM satellites

Thanks Paul, 
I had heard that AO-85 was lower than the nominal, 435180, and did a short test yesterday.
435180 gave acceptable audio and 435168 produced distorted and noisy audio.
I’ll try 435172. The satellite is so busy it’s hard to get a good test in.
Ron W5RKN
From: Paul Stoetzer 
Sent: Tuesday, August 09, 2016 4:08 AM
To: Ronald G. Parsons 
Cc: AMSAT-BB 
Subject: Re: [amsat-bb] Uplink frequency of FM satellites

There's nothing to suggest that 145.850 isn't it for SO-50. 

Measurements after launch showed that the uplink for AO-85 is about 435.172 MHz.

73,

Paul, N8HM

On Monday, August 8, 2016, Ronald G. Parsons <w5rkn at w5rkn.com> wrote:

  Is there any good current data on the actual center uplink frequency at the satellite of the current crop of FM satellites such as SO-50 and AO-85?

  Ron W5RKN
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