[amsat-bb] SATPC32 and FT847

Tom Schuessler tjschuessler at verizon.net
Sat Apr 9 21:38:58 PDT 2011

Hi all,

In an attempt to dabble my toes in the linear transponder pool, I asked a
FT847 owner friend to bring his rig over to try and understand the mechanics
of making it all work with the computer interfaced.  Got SatPC32 to
communicate at 9600, 8, none, 1, none, with the radio and the radio
responded to changes I made on the program like using keystrokes to modify
the frequency of uplink or downlink.  Problem is that although the program
was tracking Doppler correctly, the radio was not tracking at all.  With the
multiple lines of possibilities on the Doppler.sqf file as is the case for
AO-51, I can go to the CAT dialog and change the mode frequencies just fine,
the radio goes to the new frequencies and even reflects the current state of
the Doppler shifted frequencies but from there, no Doppler corrections

Now I remember reading the "Manual" that "CAT Delay" for the FT897 needed to
be set to 20.   Cat Delay is in the "Radio Setup" dialog is defaulted to 70.
I realize this now after the fact with radio not in my presence.  Is this
the reason that the above mentioned problem could be occurring?

I hope to make another go at this in a few weekends in the hope of getting
ready for Field Day.  Thanks for the help of the list. 

Tom Schuessler
2713 Lake Gardens Drive
Irving, Texas  75060
214-403-1464 (Cell)
n5hyp at arrl.net

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