[amsat-bb] HuskySat-1 Telemetry Doppler Adjust rate?

[Scott]

Hi Roy!

I use Orbitron on Windows and the best I can do there is one refresh per
second.

I've not tried FoxTelem w/ HuskySat-1 on linux, but the nice thing about
GPredict is that you can get smoother doppler adjustments by using a
shorter update interval.  I use 1/2 second for doppler tracking w/ GPredict
most of the time.

I guess use what is producing the best result for you, but I've never
noticed that the update interval was a critical factor with various
telemetry decoding efforts.  Much more impactful with HuskySat-1's BPSK
signal is to keep that audio output centered around the 1500 Hz mark.
Fine-tuning your signal during a pass to keep it as close to center as
possible in your 3k passband will produce best results, I think.

-Scott,  K4KDR

=========================

On Wed, Feb 5, 2020 at 6:48 PM Roy Dean via AMSAT-BB <amsat-bb at amsat.org>
wrote:

> What are all all the computer controlled stations using for doppler
> adjust interval?   I had previously tried 100ms, and was getting about 45
> frames per decent pass.   I just had a 50deg pass and increased the
> interval to 500ms, and got almost 70 frames.   I wonder if there is a sweet
> spot?
>
> --Roy
> K3RLD
>