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Low frequency hum with musical accompanyment

Subject: Low frequency hum with musical accompanyment
From: Dudley Edmondson <>
Date: Sun, 16 Mar 2003 09:01:34 -0600
=20=20=20
In recent months I have experience a strange thing with my HHB portadsic
recorder and parabolic stereo DAT mic.

When I am recording bird audio near a resident or near city limits  I can
hear a low frequency hum or buzz with music or voices in the background.
What I am picking up is no doubt a local radio station.  In fact once I
heard the station say it call letters.....OLDIES 107 FM.......  It is not
super loud or anything it just at a sound level that gets picked up in any
recording you make BUT not loud enough to overshadow the subject source.
But Just loud enough to be heard during moments of silence during a
recording

What the heck would make my recording set pick up radio stations??  Has
anyone else had this problem. This sounds crazy to me and NO there are no
voices in my head........

Dudley Edmondson
Duluth,MN




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