[Elecraft] K3 - Eric &Co.... Please relocate the Link/UnLink button.

[Richard Ferch]

W4TV wrote:

> The display is VFO B *not* KRX3 receive frequency - the icon says "[B]"
> not "[SUB]".

This is a key point. Ian's first post in this thread makes it clear that 
his mental model of the two displays is that they track the two 
receivers. This mental model may work with a dual-receiver K3 in 
non-diversity mode, but it is not the most appropriate mental model for 
a dual-receiver K3 in diversity mode. In diversity mode VFO B does not 
track with VFO A; it is the subRX that tracks with VFO A.

In diversity mode, from the point of view of operating the radio there 
is a single receiver controlled by VFO A. This receiver uses twice as 
much hardware as a normal receiver, and it allows two simultaneous 
antenna inputs instead of only one, but operationally speaking it is a 
single receiver. In other words, a K3 in diversity mode is functionally 
similar to a single-receiver K3 or a dual-receiver K3 with the subRX 
turned off: VFO A always displays the receiver frequency, and the VFO B 
display indicates where the transmitter will transmit in SPLIT mode.

Switching from a VFO A vs. VFO B display model (the current design) to a 
main RX vs. subRX display model, as Ian has suggested, would waste the 
capability of the VFO B display in diversity mode (what's the point of 
dedicating display real estate to a second frequency display if it is 
forced to be identical to the first display?). Having the VFO B display 
tell you where the transmitter would be if you invoked SPLIT, exactly 
the same as it does in a single-receiver K3, is a more effective use of 
the display resources, particularly for someone wishing to work a split 
pileup on low bands.

73,
Rich VE3KI