[Elecraft] RF noise on 80M with KPA500 plugged into AC outlet

[K9MA]

On 10/4/2016 22:18, John Freed wrote:
>   I disconnect the power cord from the amplifier at the amplifier and the noise remains.
Do you mean there's just a power cord plugged into the outlet, and the 
other end connected to nothing?  If that's the case, I'd suspect arcing 
at the plug at one end of the cord, in which case you should replace 
that cord immediately, before it starts a fire.  The only other 
possibility I can think of is that the wiring to the wall socket is in 
conduit, so it's shielded, and the line cord is acting as an antenna, 
radiating whatever junk is on the wiring.  (Be sure to turn off all the 
fluorescent lights nearby.)

73,

Scott  K9MA


-- 
Scott  K9MA

k9ma at sdellington.us