[amsat-bb] SatPC32 with dual radios

Larry Ryan llryan807 at gmail.com
Fri Aug 1 18:20:50 UTC 2014

I am trying to set up SatPC32 ver 12.8c "unregistered" with two FT-817s. My
problem is that there is no CAT control on radio 1. Radio 2 works
perfectly. Here is the setup:
Radio 1, com port 2, delay 70 (tried 110 also)
Radio 2, com port 5
Checked Atom. RX/TX change only (no other boxes checked but tried the
As I change from sat to sat, Radio 2 will change freq and be steered but
there is no response from Radio 1
If I remove Radio 2 (unplug the USB cable) and configure only a radio 1,
there is no CAT control of radio 1.
Computer is an HP Mini running Win7
Watching Device Manager, I can unplug either USB cable and see port 2 or
port 5 come and go as I plug and unplug.

I have switched radios then switched the CAT USB cables (they are FTDI).
Still radio 1 does not change.

Leaving the radios plugged in to the same computer, I exited SatPC32 and
started HRD and tested for CAT operation on each radio one at a time and
they both work.

My question: Why no CAT for radio 1? Why no error message? Are there any
other troubleshooting steps I can take?

I have searched just about everywhere on-line and see no one else having
this problem. I have found that many have success with the dual non-duplex
transceivers configuration.

Any help would be appreciated.
Thanks, Larry W7DGP

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