[amsat-bb] Re: clarification : audio interference
kl7uw at acsalaska.net
Mon Apr 21 18:48:31 PDT 2008
Get some ferrite donuts and wind the speaker leads thru them a couple
times. You may have to use ferrite chokes on the power lead to the
speaker, also. The real expensive solution is to buy RFI immune
computer speakers from MFJ. On your wife's computer speakers solder
a disc ceramic capacitor across the leads menioned, above (probably
.001 mfd, rated for 500v or 1kv). For HF RFI one could use .01 mfd.
I think Radio Shack is carrying some clamp-on ferrite beads that
might go on easy. If you notice these are now standard on the VGA
leads to computer monitors! The Computer folks are beginning to learn.
This works for stereo RFI as well.
GL & 73,
Ed - KL7UW
At 03:33 PM 4/21/2008, w0dxz at aol.com wrote:
>Let me modify that...? my original info was relayed from my wife...
>"you are getting into the neighbors TV"... after talking with the
>neighbors,,, I am NOT into their TV, I am being heard through her
>how do I solve this now that I know where it is... she is hearing
>audio on her speakers...? I am glad it is this rather than? TVI through cable.
>Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
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