John,

The VFO B has no direct relationship to the subRX. The K3 simply has 2 VFOs - try to think of it that way rather than anything about the subRX. While it is a fact that with the subRX installed, VFO B is normally used for tuning the subRX, but that can be altered. Without the subRX installed, and with SPLIT activated, VFO B will control the transmit frequency. Observe the 'arrow' on the right of the display which indicates which VFO will be used for transmit. The VFO B cursor on the P3 is another reminder of the TX VFO.

73,
Don W3FPR

On 10/4/2015 9:43 AM, [email protected] wrote:
>From the P3 manual"
"VFO A has a green cursor and VFO B has a magenta cursor unless split mode is 
activated at the K3. In split mode, the VFO B cursor changes to red as a reminder that 
you will transmit on that frequency."

Just to verify, is this true even without a sub-rx? In other words, with SPLIT 
enabled (and no sub-rx) can I still move the cursor on the P3 for VFO-B with 
the VFO-B knob on the K3?


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