[Elecraft] KX3: Preamp shuts itself off

[Edward R Cole]

I have been running my KX3 as 28-MHz IF for my 144-28 transverter and 
the transverter is a little gain deficient in Rx so I turn on the 
preamp in the KX3 too boost the level a tad.  Unfortunately after a 
few minutes the preamp shuts off by itself.  KX3 is sitting in Rx 
monitoring a 2m FM frequency (29.210+116=145.210).

I had the preamp set to 30-dB gain so thought maybe that was 
overloading the receiver and the radio automatically adjusted for 
overdriving.  So I set the preamp to 10-dB gain.  It still shuts off 
by itself after a few minutes.

Anyone see this happening?
73, Ed - KL7UW