[Elecraft] KX2 / KPA500

[Andy Durbin]

"So, it seems like the amp is not sensing the RF frequency coming out of the KX2 - but why?"

If the KPA500 is sensing RF frequency it will display the appropriate band on its display.  Does it?

Loss of RX signal could be caused by failure of the KPA500 T/R switch or it could always be selected to TX.  Check for the keyed indicator (an asterisk on the left side of the KPA500 display).  It is only displayed when keyed and in OPER mode.

73,
Andy, k3wyc