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I would never swear to it, but I do know how its supposed to work as I wrote
my own interface for the IC7300 for my home brewed logging program.
For the IC7300 I used the new CAT cmds x'25' & x'26' and their respective sub cmds
to change the frequency and mode on the selected as well as for unselected VFO
without resorting to toggling the VFOs.
When I interfaced my program to the Xeigu G90 and X5105, I had to
resort to toggling the VFOs to read and set the unselected VFO's
Anyway I hope you can resolve the issue one way or another.
From: Gene Horr <genehorr@...>
Sent: Thu, Sep 2, 2021 3:33 pm
Subject: Re: [WSJTX] Intermittent Base Frequency Change When Changing TX Offset #Cat_RigControl #Icom
> That may be why you are getting intermittent problems when switching
offsets that quickly where the software has to actually change the un-selected
It is a 7300 about 4 months old with the latest firmware. But something causing a delay would make sense. So the software is sending a command to ultimately change VFO B but due to a delay (or something) the radio is still on A and that frequency gets changed. Then during a regular poll the software sees the changed A frequency and acts the same way as if I had just changed the frequency manually.