[amsat-bb] AO-85 downlink
g0mrf at aol.com
Fri Nov 20 10:42:17 UTC 2015
An interesting time for AO-85.
Looking at Nova, it seems the satellite has moved into an orbit without any eclipse periods.
The telemetry will be interesting over the next few days.
From: Alan <wa4sca at gmail.com>
To: AMSAT-BB <amsat-bb at amsat.org>
Sent: Thu, 19 Nov 2015 20:21
Subject: Re: [amsat-bb] AO-85 downlink
I have been looking at this, using some precision time and frequency equipment to measure the
downlink. On today's pass at 1530 UTC it was running about 3 KHz below the nominal frequency, AOS to
LOS. The magnitude of the difference has been increasing along with the component operating
temperatures. It will be interesting to see whether that trend continues at elevated temperatures.
Looking forward to this afternoon's passes.
<From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of Pedro Sousa via AMSAT-BB
<Sent: Thursday, November 19, 2015 1:24 PM
<To: amsat-bb at amsat.org
<Subject: [amsat-bb] AO-85 downlink
<I just had a 80 plus degrees pass by AO-85 and noticed that the downlink
<frequency was, at the descent phase, off by 10kHz at 145.970.
<Despite correcting for Doppler I've never seen this kind of deviation
<before in such a overhead pass, where usually stands around 145.977.
<73 de Pedro CU2ZG
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