[Elecraft] Unusual problem with KPA500

[marvwheeler at nwlink.com]

My problem only occurs on 160 meters. If the KPA500 is in stand-by I receive
no signals on the K3S. Simply switching the amp to operate lets signals
pass. I have tied different antennas jacks on the KAT500 and the problem
remains. I sent an email to Elecraft support about a week ago and have not
had a response. Anyone have any ideas? Thanks