[Elecraft] K3: external VFO control

[Edward R Cole]

I guess this might be considered a subject covered by remote 
operation of the K3, but I have a specific need to be able to control 
VFO-A in my K3 from another sw program.

I am implementing MAP65 vs 2 which performs JT65 over a 90-KHz 
bandspan decoding every JT65 signal in the 90-KHz window, 
simultaneously.  MAP65 has the ability to also transmit JT65 on a 
specific frequency (but that requires frequency control of the 
radio).  MAP65 currently is built to control SoftRock, FUNcube, 
SDR-IQ, IQ+. and WSE.  I will be writing Joe K1JT about adding the K3 
to that list and he may need details on how to control the K3 VFO.

This application to the K3 is not just a benefit to me as there are 
several K3 owners that utilize JT65 and would use MAP65, as well.  I 
should explain that MAP65 is primarily designed for eme use on VHF 
(this has no particular application to JT65HF).

73, Ed - KL7UW