[Elecraft] KPA500 new owner questions......

[Andy Durbin]

The report that a KPA500 was damaged by 100 W drive had me coding a new enhancement to my Kenwood/Elecraft control interface the same day.  I now continuously monitor the TS-590 power setting and, if it exceeds 35 W, I assert the KAT500 key line inhibit.  The key line stays inhibited until the TS-590 power setting goes below 31 W.   The diagnostic output of the interface shows what happens (PC; is the TS-590 power set/read command).

New PC - PC032;
New PC - PC033;
New PC - PC034;
New PC - PC035;
Power protection activated
Sending AMPI1; to KAT500
New AMPI  - AMPI1;
New PC - PC036;
New PC - PC034;
New PC - PC032;
New PC - PC031;
New PC - PC030;
Power protection cleared
Sending AMPI0; to KAT500
New AMPI  - AMPI0;
New PC - PC029;
New PC - PC028;

73,
Andy, k3wyc