[Elecraft] Arc Fault Detector Woes

[Tom Doligalski]

Over the last several weeks I’ve been having problems with the arc fault detector (AFCI) in my fusebox.This does not control the power to the shack, but to our garage door operners.

It seemed random at first, but I think I’ve tracked it down a bit.

Running an Elecraft K3/KPA500/KAT500 combo. The AFCI ONLY trips when on 80 CW, running 100 watts (the KPA500 in standby bode). If the KPA500 is ON (running 500 watts) there is no problem.

Seems fine on other bands….

80M antenna is a Carolina Windom. The usual baluns/line isolator/grounding stuff.

Any ides?

Kinda worried that there is an issue with the 100 W amp in the K3.

73. 

Tom W4KX