[Elecraft] News from Visalia!

[Phil & Debbie Salas]

"Sounds trivial to me.  You must have *some* switch closure or logic signal 
that activates the PA.  Lock out all tuner adjustments when the PA is on."

Or conversely, disable the amp before tuning starts.  That's the way my 
MFJ-998 autotuner works.  The amp-enable signal goes thru the MFJ-998.  So 
when the tuner wants to tuen, the first thing it does is interrupt the 
amp-key line.

Phil - AD5X