[amsat-bb] Re: gpredict and ft-817 cat control
ko6th.greg at gmail.com
Tue Mar 26 07:25:30 PDT 2013
What happens if you do try to change frequencies during transmit? There is a race condition between the status check and frequency programming where the mike PTT button could be pressed.
Sent from my new toy... Please ignore tupos.
Erich Eichmann <erich.eichmann at t-online.de> wrote:
>To adjust the TX frequency via CATcontrol a program first has to toggle
>VFOs (command hex. 81) to get access to the TX VFO. After adjusting
>frequency it has to toggle the VFOs back, of course.
>Also, it is necessary to check the TX status (command hex. F7) before
>sending frequency commands. The frequencies must not be changed during
>The adjusment has to be suspended until the radio is in RX again.
>73s, Erich, DK1TB
>----- Original Message -----
>From: "Richard Ferryman" <g4bbh at btinternet.com>
>To: <amsat-bb at amsat.org>
>Sent: Tuesday, March 26, 2013 2:00 AM
>Subject: [amsat-bb] gpredict and ft-817 cat control
>> Does anyone know a way around the problem that gpredict can only
>> the FT-817 downlink frequency. I suspect there is a limitation in
>> hamlib control for this rig. The gpredict manual says 'the TX
>> can not be adjusted via the CAT interface (e.g. Yaesu FT-817)' but
>> on windows manages to handle TX and RX so it must be possible.
>> Dick G4BBH
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