[Elecraft] K3 with a PW-1

[gdaught6 at stanford.edu]

George wrote:

> Does anyone use a K3 with a PW-1 setup to autoswitch the AMP as the K3 
> changes bands. ?   Just replaced my 756 Pro II with the K3 and am 
> wondering whether it will be simple to operate the Amp as before.

The Icom series communicates band data by a variable analog voltage on a single 
line.  The K3 (and Yaesu, etc.) communicate band data by digital signals over 4 lines.

What is needed is a converter from the BCD from the K-3 to the various levels 
needed by the Icom.  I built my ownYaesu/Icom interface for my FT1000MP.  When 
I got my K3, all I had to do was change the connector on the radio end of the cable.  

If you want to build one for yourself, I can send you my notes and schematic.  It's 
easy, but not trivial.

I believe there are commercially available units that will do this job.

73,

 George T Daughters, K6GT
CU in the California QSO Party (CQP)
October 4-5, 2008