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Topband: beeping signals

To: <topband@contesting.com>
Subject: Topband: beeping signals
From: Thomas.Damboldt@t-online.de (Thomas Damboldt)
Date: 22 Sep 2004 06:41 GMT
List-post: <mailto:topband@contesting.com>
Hi,

On the low end (1800 - 1820) of topband I can hear strange signals transmitted 
as two beeps following each other immediately, sounding like second beeps, but 
there are only 56 beeps in a minute. These signals are apparently transmitted 
synchronously separated by about 822 Hz with the maximum around 1812 kHz. They 
are only audible in the evening and at night, so probably real propagating HF 
signals and not coming from the power line.  Does anybody know what they are?

73, DX and cuagn
Thomas, DJ5DT
22 September 2004



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