How close does your cabling pass to your monitor.  I'm thinking some type 
of magnetic induction is occurring, probably either from a CRT or one of 
the power supplies associated with your  computer system.  The small DC 
power supplies such as the ones used on speakers, DSL modems, cable modems, 
printers, etc. are suspect.

73, de Lou K2LKK



At 07:28 PM 8/30/2007 -0400, you wrote:
>Hi Everyone;
>
>I am attempting to play my computer through my system.
>
>I am getting a low level hum.
>
>That's when I play it using the digital jack on the sound card.
>
>When I play it through one of the speaker jacks the hum is still there but,
>it's not as noticeable because the audio level is higher.
>
>When I turn the computer off, the hum disappears.
>
>When I boot up the computer, the hum is there even before windows comes up.
>
>Any ideas?
>
>73 De Anthony W2AJV
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Louis Kim Kline
A.R.S. K2LKK
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