David Ferrington, M0XDF wrote:
>
> Could that have meant redundant when the KRX3 is installed?
>
Possibly, but I have a KRX3 and leave my K3 in diversity continuously. REV
still works great in split pileups with diversity on (to better copy weak DX
signals).
David Ferrington, M0XDF wrote:
>
> I kinda wonder, there is the A/B button, what does REV give you that A/
> B doesn't?
>
The difference is that REV is momentary (as long as you hold the button) and
returns when you release it. A/B must be toggled each time to swap TX<>RX
which guarantees you will eventually transmit on the DX station's frequency
when you forget to toggle.
REV can also ensure you don't accidentally bump VFO A off of the DX station.
Tune in the DX station with VFO A, LOCK, and then use REV to set the TX on
VFO B (using the BIG knob). You can move your TX frequency as long as REV
is depressed and VFO A stays locked on the DX station.
This is not something new. Kenwood's TS-930S had it in the early 80s as
"TF-SET" and I believe Icom calls it "XFC" (Transmit Frequency Check). It's
still very useful even with a KRX3 if you like to leave diversity engaged as
I do.
73, Bill
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