[RFI] Computer Hash

[William Conlan]

Hi Guys, anyone have a fix for stopping computer noise blocking out HF Radio.
 I use 3.5" Jack lead into PC microphone  & 3.5" Jack into radio speaker source on radio.

As soon as I switch on computer all I get is noise.
This is not a problem on VHF only HF 2Mgh-30Mgh.

Also happens on laptop, which I though would be less noisy.

Bought a couple of RF Mains Filters from UK, but still no joy.

Many thanks in advance.

A great and interesting site to say the least.

Regards.

Billy.
S.Ireland.