[amsat-bb] Doppler shift question

[Burns Fisher]

...and of course there is no reason NOT to adjust the lower frequency
especially if it is computer controlled.  It's just that lower frequencies
do not change as much for a given satellite speed (see JoAnne's Doppler
equation to determine why :-).  And as someone said, the FM capture effect
makes it even less important.

On Thu, Jun 6, 2019 at 12:01 PM JoAnne K9JKM via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> > If 70cm is the UPlink, you'll adjust your transmit frequency UPward
> through
> > the pass.
> > If 70cm is the DOWNlink, you'll adjust your receive frequency DOWNward
> > through the pass.
>
> I showed a quick slide with the Doppler equation on it ... that
> delta-lambda
> stuff. Then I told them pretty much what you said ... and I could hear a
> "Phew!" from the audience.
>
> --
> 73 de JoAnne K9JKM
> k9jkm at amsat.org
>
>
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