[amsat-bb] AO-85 downlink

Burns Fisher burns at fisher.cc
Thu Nov 19 20:21:07 UTC 2015


Hola Pedro,

We are in a part of the orbit where there is very little (or no) time when
there is not some sun shining on AO-85 as you can see from your favorite
orbit prediction program.  You can also see from the telemetry that the
temperature is higher, and this seems to lower the frequency.

73,

Burns W2BFJ

On Thu, Nov 19, 2015 at 2:23 PM, Pedro Sousa via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> Hi,
>
> 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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