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LF: Unid non-LORAN transmission at 100 kHz ?

To: [email protected]
Subject: LF: Unid non-LORAN transmission at 100 kHz ?
From: "Tracey Gardner" <[email protected]>
Date: Sun, 27 May 2001 13:48:40 +0100
Reply-to: [email protected]
Sender: <[email protected]>
Is anybody on the list hearing this signal or has Trond as he suspects
got a local problem?

73s Tracey

-----Original Message-----
From: Trond Jacobsen <[email protected]>
Date: 27 May 2001 13:37
Subject: Unid non-LORAN transmission at 100 kHz ?


At the moment is there a strong unid signal just below 100 kHz. When
first detected it could be best described as a very slow FSK signal
mark frequency 99.8 kHz / frequency shift 475 Hz ), after a short break
this changed to steady, but reduced, carrier at the space frequency, -
with non-regular spaced pulses of carrier at the mark frequency. This
later signal show after first examination some similarity to the earlier
reported unid pulses at 115.2 kHz. The pulses at 99.8 kHz has both an
audible and visible 100 Hz overtone,
These signals at 99.8 kHz are absolutely not part of the ordinary LORAN
splatter. Recordings and spectrograms of both types of signals, ( FSK
look-alike and pulses ) available on request.
Anyone else out there who receives this ? Or have I got myself a very
anoying local source of industrial generated QRM ?
best regards

Trond at ALFLAB, Halden in Norway



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