[net.ham-radio] Realistic DX400 interference problem

W8SDZ@SIMTEL20.ARPA (Keith Petersen) (04/30/85)

    ...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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