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Topband: 1820 kHz Intruder

To: <topband@contesting.com>
Subject: Topband: 1820 kHz Intruder
From: "Dave Bowker" <dbowker@mail.sjv.net>
Date: Fri, 9 Dec 2005 18:28:28 -0500
List-post: <mailto:topband@contesting.com>
>From FN57RF at the 'tip-of-Maine' (N 47.2380 - W 68.7165) WGS-84, the bearing 
>(True) is

220° ± 10° as read on an LF shielded loop of known accuracy/calibration.  It is

predominantly a sky wave signal and getting a good null on it is not possible 
with a loop @

this QTH, so the bearing noted should be taken with the appropiate caveats!


It is a steady carrier with no modulation as observed on a spectrum analyzer 
connected

directly to the Beverage, and '.wav' recordings would not be useful.  It was 
not detected here

during daylight hours today;  it became detectable around 1545 - 2000Z, but 
still in the

noise.  Someone within gnd wave range "down east" and with a good DF loop may 
be able

to contribute better bearing info.  Currently it is S9 and building with very 
rapid QSB on my

240° Beverage @ 2325Z.


I believe it might be advisable to involve the FCC's assistance in DFing this 
one ... their MD

facility may be better equiped to locate this source during daylight hours.

Dave, K1FK
Fort Kent, ME 


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