[amsat-bb] SatPC32 Ver12.8c and CAT Operating

Erich Eichmann erich.eichmann at t-online.de
Fri Nov 4 18:47:38 UTC 2016

Hello Fred,
I just tested my TS-790E with 12.8c (I hadn't used that radio for a 
longer time). With my settings CAT control works flawlessly.
Frequencies and modes are set and updated correctly when I choose a 
satellite. When I switch between u/v and u/v sats it is necessary to 
click the satellite ident letter twice to activate the changed RX band.

My settings in menu "Radio Setup":
brand Kenwood,
model TS-790,
baudrate 4800,
CAT delay 70,
option "Satellite mode"  checked (only in the program, not at the radio),
option "RTS +12V" checked. That simulates RTS high and may be necessary 
with 12.8c in some cases.  So, try wethert that helps. With 12.8c I use 
a new component for COM port control witch allows port numbers up to 100 
(the old MSComm32.OCX supported only up to 16 port numbers).

I use the Kenwood IF-232c  interface connected to the PC via a 
USB-to-Serial adapter with FTDI chipset. The cable betwen USB-to-Serial 
adapter and interface is a (homemade) straight forward RS-232 cable (no 
null modem) with lines ground, RxD, TxD, RTS and CTS wired. Recently 
another user (Paul, LB2BG) reported that he got his TS-790 working with 
SatPC32. I will forward his mail to you. Perhapas he can tell you how he 
has connected the radio to the PC.

  With the TS-790 the the downlink must appear  in the right window (SUB).

73s, Erich, DK1TB

Am 03.11.2016 um 21:30 schrieb Fred Castello:
> Hi folks,
> I am trying to get back into the satellites and have a Kenwood TS-790A
> which I am using with SatPC32 Ver12.8c.  I am using THIS
> <http://www.ebay.com/itm/261186601463>cable for CAT control (after research
> it seemed to be one of the best and reliable cables for the purpose).
> During the operation of the radio during a pass using AO-85 I have found
> that SatPC32 keeps switching the mode from FM to USB.  It stopped doing
> that when I disconnected the USB to accessory plug but of course it stopped
> correcting for doppler as well. When I investigated this I noticed that the
> AO-85 line in the DOPPLER.SQF file seemed to be missing a comma, see below:
> ; For Hints look at the end of this file.
> ; Do not remove or modify these first
> ; 3 lines of the file, starting with ';'!
> AO-85,145980,435180FM,FM,Nor,0,0,Voice U/V
> AO-10,145900.0,435100.0,USB,LSB,REV,0,0
> AO-73,145960,435140,USB,LSB,REV,0,0,Voice U/V
> AO-73,145935.0,,USB,,,,TLM
> ........
> I corrected that and saved it and restarted the computer and the program.
> It continues to do it and I can't figure out why.  So, on this radio there
> is a "Main" channel which is on 70 cm which I transmit on and there is a
> "Sub" channel which is on 2 meters which I receive on.  The "Main" channel
> tracks the doppler correctly and remains on FM but the "Sub" tracks the
> frequency correctly but keeps switching to USB.  Does anyone have any
> thoughts on how to correct this or am I doing something wrong?
> Thanks so much for your time.
> Regards,
> Fred Castello, KF4FC
> Fishersville, VA
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