I installed a 350w PS from Antec in one of my computers and the noise disappeared.
One other computer, I installed a Corcom 6EF1 RFI module at the AC input and that cleared up the computer hash on 30m. This drove me nuts for about two years as I was hearing this warbling hash going up and down the 30m band. Thought it was some kind of digital noise from somplace in EU. After flipping breakers in the house, noticed that the 2nd floor breaker stopped the noise...narrowed it down to the computer ps. Tom/k1tl... ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html