[amsat-bb] Setting Doppler for SSB Satellites in Doppler.sqf

Brian Wilkins KO4AQF bwilkins at gmail.com
Sun Jun 21 20:08:40 UTC 2020


I’m in a unique situation with 1 cat controllable radio (817) and another
that can’t be CAT controlled. Maybe this is non standard. I think it is
probably equivalent to using a SDR for receive and a 817 for TX. I don’t
think I can leverage the power of tuning around and the software adjusting
for me. I will stay parked in the center

On Sun, Jun 21, 2020 at 4:05 PM Bernd Peters via AMSAT-BB <
amsat-bb at amsat.org> wrote:

> And you move around the passband with your VFO, you don't change the .sqf
> file.
>
> 73,
> Bernd - KB7AK
>
> -----Original Message-----
> From: AMSAT-BB <amsat-bb-bounces at amsat.org> On Behalf Of Dave Webb KB1PVH
> via AMSAT-BB
> Sent: Sunday, June 21, 2020 12:36 PM
> To: Brian Wilkins KO4AQF <bwilkins at gmail.com>
> Cc: AMSAT BB <amsat-bb at amsat.org>
> Subject: Re: [amsat-bb] Setting Doppler for SSB Satellites in Doppler.sqf
>
> Brian,
>
>  Typically the frequencies in the doppler.sqf are center of the passband.
>
> Dave-KB1PVH
>
>
> Sent from my Galaxy S9
>
> On Sun, Jun 21, 2020, 3:28 PM Brian Wilkins KO4AQF via AMSAT-BB <
> amsat-bb at amsat.org> wrote:
>
> > For setting the uplink and downlink frequencies in doppler.sqf, do I
> > set it to one of the many frequencies starting with the AOS and the
> > software will adjust from there?
> >
> > For example, using ke0pbr frequency cheat sheet for XW-2F, if I wanted
> > to stay approx center, in Doppler.SQF, I would set the file to
> > 435330.0 for uplink LSB and downlink I would set it to 145990.0
> >
> > If on another pass I wanted to start somewhere else, I could set it to
> > 435340.0 and 145980.0.
> >
> > In example 1, the software would adjust from 435330.0 to 435350.0 as
> > the satellite passes over me. (AOS to LOS).
> > --
> > Brian Wilkins
> > KO4AQF
> > _______________________________________________
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> >
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available to
> all
> interested persons worldwide without requiring membership. Opinions
> expressed are solely those of the author, and do not reflect the official
> views of AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
>
> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
> to all interested persons worldwide without requiring membership. Opinions
> expressed
> are solely those of the author, and do not reflect the official views of
> AMSAT-NA.
> Not an AMSAT-NA member? Join now to support the amateur satellite program!
> Subscription settings: https://www.amsat.org/mailman/listinfo/amsat-bb
>
-- 
Brian Wilkins
KO4AQF


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