radio interference on intercom

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Article #20193

#20193

From: Lou Steinberg
Date: Tue, 13 Dec 1988 18:59

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I have an el-cheapo intercom.  It consists of two handsets plus about
30 feet of (3-conductor) wire.  The problem is that in addition to the
voice from the other end, you pick up a local AM radio station (1440,
I think), which is rather annoying.  The handset contains about 3
transistors and a dozen or so resistors, capacitors, etc.  Is there
anything I can do to reduce the interference, short of somehow
shielding the wire?  Some sort of filter I can add where the sire
enters the handset?

I should note that we are fairly close to the transmitter for this
station - maybe a mile or so.

Thanks for any pointers.  Please respond by email, as I do not manage
to keep up with this newsgroup with any regularity.

					Lou Steinberg

uucp:   {pretty much any major site}!rutgers!aramis.rutgers.edu!lou 
arpa:   lou@aramis.rutgers.edu
-- 
					Lou Steinberg

uucp:   {pretty much any major site}!rutgers!aramis.rutgers.edu!lou 
arpa:   lou@aramis.rutgers.edu

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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!lll-tis!ames!nrl-cmf!mailrus!uflorida!ukma!rutgers!aramis.rutgers.edu!bearcat.rutgers.edu!lou
From: lou@bearcat.rutgers.edu (Lou Steinberg)
Newsgroups: sci.electronics
Subject: radio interference on intercom
Message-ID: <Dec.13.13.59.01.1988.10354@bearcat.rutgers.edu>
Date: 13 Dec 88 18:59:12 GMT
Reply-To: lou@aramis.rutgers.edu
Organization: Rutgers Univ., New Brunswick, N.J.
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