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LF: 73kHz

To: [email protected]
Subject: LF: 73kHz
From: "James Moritz" <[email protected]>
Date: Mon, 11 Jun 2001 12:01:39 +0000
Organization: University of Hertfordshire
Reply-to: [email protected]
Sender: <[email protected]>
Dear John, Laurie, Mal & LF group,

I have not been active on 73kHz just lately because I am in the throes of completing a new PA for this band. However, this is now looking promising, and I hope to be QRV with it before the weekend, pyrotechnics permitting. Whether my antenna will stand it is another matter, of course...
The Rugby signal on 73.25kHz continues to be quite variable - I
have lately seen it transmitting a single FSK 100Hz shift signal, and
also a pair of 100Hz shift signals symetrically disposed around
73.25, with a separation between their centre frequencies of
150Hz or so - something worth bearing in mind when monitoring the
band. The noise sidebands generated by this latter signal are very
strong, so let's hope they don't do that too often! QRN has been
strong during afternoon and night, but the mornings have been
quiet. QRM seems to be at a lower level during the mornings too,
so this remains probably the best time of day for a QSO.
Cheers, Jim Moritz
73 de M0BMU

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