[amsat-bb] IC-9700 and SATPC32 linear tuning

[Erich Eichmann]

Dave,
the "Uplink Calibration" feature has been unchanged for at least 15 
years, hi. You are right, the calibration has to be done via the "Upl. 
Calibr." controls in menu "CAT" (the FT-847 is the only radio that 
allows uplink calibration additionally by its Sub VFO knob). The program 
does not cancel the uplink corrections you made "after a few seonds" but 
continues with the changes until the program is shut down. Of course, it 
continues with Doppler correction but on the base of the new uplink 
frequeny.
Track an SSB sat - say FO-29 ' . Then correct the uplink frequency in 
menu CAT until you hear your own signal with the best audio pitch. Then 
click "Change/Store Data file" and then "Uplink Calibration". That will 
save the changes in Doppler.SQF (watch the frequency list in menu CAT to 
see the modification). At the next program start you should immediately 
hear your signal with the right audio or very close to it. Little 
remaining deviations (100 - 300) Hz, due to temperature changes etc.) 
can then be corrected without new storage by the +/- keys of the 
keyboard (that works only if the main window has the "focus" = dark 
header line).
I tested the IC-9700 during  a few passes of FO-29. The audio of my 
signal remained constant during the whole passes without any corrections.

73s, Erich, DK1TB


Am 02.07.2019 um 04:15 schrieb Dave J via AMSAT-BB:
> Hello folks:
>
> I just upgraded my tired FT-847 for a new IC-9700. FM birds are not a
> problem but I'm wondering if someone has a good method of finding your
> signal on the linear birds while using SATPC-32 revision 12.8d. The only way
> I can vary the TX frequency is under the CAT Tuning menu Upl Calib field. It
> seems to work but it's a bit clunky and not very quick. If I try to change
> the transmit frequency on the radio it only gives me a few seconds then
> reverts back to what is on the main screen of the PC. If I try changing the
> receive frequency, the transmit frequency changes as well. Probably new
> radio operator error but I would appreciate any suggestions.
>
>   
>
> Thanks//Dave WB9YIG
>
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