[Elecraft] KPA500 Help

[Anndel]

Aloha Everyone,

 

Just finished building the KPA500 kit and it appears to be working (no smoke
and HV voltage withing range).    I have the Auxiliary cable connected to
the AUX on my K3 and the key line interrupter since I'm using the Key Out to
control the Telepost LP-100A wattmeter and a Pixel RF Pro 1-B Receive
Antenna.  The key triggers the wattmeter while disabling the Pixel for
transmission to prevent damage to the front end.  When the KPA500 is in
STANDBY (STBY), I can hear stations on the air.  When in OPERATION (OPER),
it seems to mute or attenuate the signal where I can't hear the qsos.  I
went through the manual 3 times but found nothing.  Did I miss or overlook
something?

 

Thanks for your help in advance. 

 

73, Delwyn KH6DC