Jim makes excellent suggestions. If you have a battery powered radio, you can tell if the RFI is arriving through the power line. One thing that I'd check before going too crazy chasing possibilities is to be sure the metal frame and cabinet is grounded. It should be, but sometimes the ground has to be attached during installation and it gets left off. A quick check between a known grounded outlet and the case with an ohmmeter should show a ohm or two at most.
Ron AC7AC _______________________________________________ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com