Dear all,
While qso with a friend that uses a FT-857 thru a linear satellite, I noticed he always drifts upwards. He said GQRX was not updating the freq while TX and he has to release the PTT button between syllables so the radio catches up.

Is this a known bug (CAT port is disabled during TX), or the CT-62 cable got RF interference during TX.

Let me know your thoughts,

73 de Yono - YD0NXX

Hello Yono,
I tried it here, and indeed, the 857 will not accept frequency change commands by CAT during transmit. I am pretty sure the CAT interface itself functions, as I use CAT command to switch between transmit and receive. So I guess it is designed this way.

73
Peter/PA3FQH

Yes that is a limitation of the 857 when using for satellite operation.? It really isn't a big problem if you keep your transmissions short.

Don K9AQ

Peter: This behavior for several Yaesu radios (857, 817, 897) is mentioned in the SatPC32 documentation.? (Hints->Yaesu, see the Reame(Yaesu).txt file).? Manual tuning (front panel) works, but CAT-controlled Doppler correction disabled when PTT pressed. Recommendation is to keep transmissions short, especially when Doppler shift changing rapidly.

73 Steve KS1G?

Hy. I Had the Same,...
After master reset. Everything was fine...

Check ist Out..

Good luck
Andy DF1HF


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