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Re: [psk31] PSK31 Satellite Uplink on 10m (final plan?)
ARGH...Goofed again. I meant to say "Doppler rate " is always down for
LEO... As we all konw, it starts HIGH, but is always going lower...
bob
On Thu, 21 Nov 2002, Bob Bruninga wrote:
> OOPS, goofed again.
>
> After a little caffine, I realized that I have been thinking LEO too long
> now. There, the doppler is always down. But for AO-40 it can equally be
> up as the satellite returns from APOGEE.. SO the AFC (in satellite mode)
> would also see a positive rate of frequency change sometimes too.
>
> > Peter and other PSK-31 authors?
> >
> > I wonder, now that we have now discovered that the 1 or so Hz per second
> > of Doppler shift on the proposed 10m PSK satellite in LEO orbit is not
> > much different from that experineced on the very high altitude AO-40
> > satellite, I wonder if it is time for authors to consider including a
> > little bit of selectible downward AFC in their programs? (or maybe its
> > fully there now?)
> > <snip>
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>
de WB4APR@amsat.org, Bob
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