[Elecraft] KX3 LO control for 2m XVTR

[Edward R. Cole]

I am about finished converting an older (circa -2004) DEMI 144-28 
transverter for use with my new KX3.  Learning that the K144XV 
automatically switches LO freq. from 116 to 118 MHz when tuning above 
146-MHz, I wonder if that feature will exist for the KX3 and where 
one could access a control line to use external to the KX3.

I will install the new DEMI PLL board when it becomes available to 
accomplish the same LO freq. switching and probably could control it 
with a 5v digital control line. The PLL will likely have multiple 
frequencies (memory locations for programming multiple frequencies).

This project is for the interim until the internal Elecraft 144-28 
MHz transverter becomes available. Actually, I am learning some 
interesting stuff using mmic's and Toshiba power modules.

Ready for the "opening gate" to buy that KX3!!!


73, Ed - KL7UW, WD2XSH/45
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