On 04/12/2018 01:17, Brian Waterworth wrote:
Bill, I am not positive about whether the FT-450D, via cat control,
can qsy during Tx, but I can certainly change the freq of VFO B while
transmitting using the big tuning knob. So the Rig will allow it and
likely via cat control as well. You make a good point about a rig's
ability to do this. I took it for granted and perhaps got lucky that
this Yaesu allows qsy during transmit. I have an Elecraft KX3 as well
and it seems to behave similarly when it comes to qsy'nig during xmit.
Hi Brian,
with "Settings->Radio->Split Operating" set to something other than
"None" you can easily check if your rig accepts CAT QSY commands while
transmitting. While transmitting a message CTRL+Click on the waterfall
at least 500Hz away from your current Tx audio offset while watching the
rig, if the Tx VFO frequency changes then you have a rig that allows CAT
QSY while transmitting. Tuning while transmitting via the rig's front
panel is not a good test for that as almost all rigs allow that even if
they don't allow it via CAT commands.
As far as I know the FT-450D does allow CAT QSY while transmitting. I
believe the ones that don't are trying to guard , not unreasonably,
against unexpected band changes while transmitting.
73
Bill
G4WJS.
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