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From: W8SDZ@SIMTEL20.ARPA (Keith Petersen)
Newsgroups: net.ham-radio
Subject: Realistic DX400 interference problem
Message-ID: <10294@brl-tgr.ARPA>
Date: Tue, 30-Apr-85 10:53:23 EDT
Article-I.D.: brl-tgr.10294
Posted: Tue Apr 30 10:53:23 1985
Date-Received: Wed, 1-May-85 06:37:17 EDT
Sender: news@brl-tgr.ARPA
Lines: 25


    ...The interference appears as a pulsing sound, approximately
    one cycle per second, covers a wide range of frequencies (from
    about 5MHz to 15MHz), and does not go away at any time of day.  I
    turned off all power to my apartment with the circuit breakers,
    and yet the signal persists, indicating a neighbor is at fault.
    I also brought the unit to a remote area to see that it was not
    the radio itself.

    Can somebody give me a reasonable way to find the neighbor that
    is causing the interference?  Should I bring the FCC in if I
    can't resolve the problem?

Jeff, as you pointed out, this interference isn't within the DX400.  I
doubt if it's any neighbor either.  It sounds to me like interference
from Cable TV.  There are some special signals on many cable systems
that have a 1 second pulse of some kind (you can hear it at the top of
the FM band and on some unused cable channels).  A good outdoor
antenna should solve the problem.  If not, get your cable TV people to
check for leakage.

--Keith <W8SDZ@SIMTEL20.ARPA>
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