Re: How to filter out EMI/RFI from TV signal

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Article #10950

#10950

From: Brian Grier
Date: Thu, 05 Nov 1992 20:29

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It depends on how the noise is getting to the TV

> Several appliances seem to introduce EMI/RFI to the TV signal, namely
> my CD players (portable and component), my PC (386DX), and the usual
> hair dryer, maicrowave, etc.  I'm interested in finding out what I can
> do to make the TV signal more pure.  Here are some observations:

If the interference is being transmitted via the airways then you are
probably in a bit of trouble. However is the noise is being transmitted
via the power lines you may be in luck. Try wrapping the power lines
from your CD player and TV around a toroid. Six or seven turns will
clean up most common mode noise. The toroids are available at Radio
Shack, and cost around $15 for a pack of four.

Brian, WS1S
Bell Northern Research
Research Triangle Park, NC

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From: grier@bnr.ca (Brian Grier)
Newsgroups: sci.electronics
Subject: Re: How to filter out EMI/RFI from TV signal
Keywords: TVI problems
Message-ID: <1992Nov05.202945.26916@bnr.ca>
Date: 5 Nov 92 20:29:45 GMT
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