[amsat-bb] Doppler correction between AOS and LOS

[Hasan N0AN]

Make sure in your tracking program, you didn't accidentally enter a silly
wrong altitude value for your qth. I had an issue here, where my altitude
got changed to 30,000 meters...it caused very similar issues with doppler
tracking at various points during the pass, especially at TCA.

73, N0AN
Hasan


On Thu, Nov 26, 2020 at 6:30 PM lu9cbl--- via AMSAT-BB <amsat-bb at amsat.org>
wrote:

> Hi to all, a friend of mine, has satpc32 with and SDR. We have the
> doppler correction, when the satellites it's in AOS, de frequency it's
> OK, in TCA has (for example) 1 KHz difference, and in LOS has 2 KHz
> difference.
>
> It's there any configuration to modify??? all the satellites that we
> found, in AOS has the correct frequency, but in TCA and LOS its not the
> same as we can see in the waterfall of HDSDR.
>
> Ir i compare the doppler with http://www.amsat.org.ar/pass.htm the
> frequency has the same between the waterfall and the webpage.
>
> Thanks in advance.
>
> Mati LU9CBL
>
>
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