[amsat-bb] Re: SatPC32 Not Tuning

Erich Eichmann erich.eichmann at t-online.de
Mon Oct 5 22:40:19 PDT 2009

Hi Joel,
the program updates the radio frequencies only when the change of the
Doppler shift of the higher of both frequencies (with AO-51 mode V/U the
downlink) exceeds the "interval". The interval for FM sats is 600 Hz by
default (menu "CAT"). Decrease it  to - say - 50. Then watch the change of
the  Doppler shift of the downlink in the SatPC32 frequency window. When
the Doppler shift of the downlink changed by  50 Hz or more the program
should update both radio frequencies.  See also sect. D 4 (menu "CAT") in
the manual.

73s, Erich, DK1TB

----- Original Message ----- 
From: "Joel Black" <jbblack at charter.net>
To: "Amsat Reflector" <amsat-bb at amsat.org>
Sent: Tuesday, October 06, 2009 5:16 AM
Subject: [amsat-bb] SatPC32 Not Tuning

>I am trying to get SatPC32 v12.8 to automatically tune my FT847.  When
> the program first comes up, the radio is initialized as indicated by the
> "CAT" display and when I click on a satellite, the radio tunes to the
> correct satellite.  That's where it stops; it no longer changes the
> frequency of the radio.  If I turn off and turn back on CAT control, it
> will update once and will then quit again.  I have the same problem with
> my FT-857.
> I have read the help and .SQF files, but I cannot seem to find the right
> combination.  I have changed the baud rate of the radio and the program
> to 4800, 9600, and 57.6k and made the corresponding changes with the CAT
> delay value as recommended by the manual.  I have not yet tried
> uninstalling and re-installing the app.
> I am running Vista 32bit and using a USB-to-serial converter which works
> with everything else.  The same converter works with the HRD 5.0
> Satellite Tracker.  Problem is, I cannot get HRD to accept sub-audible
> tones so I can work AO-51.  I don't know if it's a limitation of the
> program or cockpit error.
> Any suggestions, known issues, or anyone else having the same problem(s)?
> Thanks,
> Joel, W4JBB


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