I have found that CRT monitors are the biggest culprit. LCD monitors are cheap now - check 'em out.
If you have an ethernet LAN, this can cause intermittent interference whenever packets are being transmitted.
_______________________________________________
Elecraft mailing list
Post to:
[hidden email]
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.htmElecraft web page:
http://www.elecraft.com