Hi Paul-Henrik,
similar to F1AFJ and others, I usually have two narrowband "transatlantic"
grabber windows running 24 hours around 137.777 for W-E
and 136.318 for E-W, which are useful for QRSS 30 or slower modes. There is
also a strip near 137.700 to capture some of the QRSS3
activity.
The "space" (upper) frequencies of DCF39 and HGA22 during their telegrams are
139.17 and 135.77 kHz. At baudrate multiples (n * 200
Hz) from these, there are gaps in the FSK sidebands, eg. at 137.77, 137.57,
137.37,... and 135.97, 136.17, etc. However during the
afternoon and darkness hours, the advantage of these gaps is often compromised
by the increased level of Luxembourg sidebands on the
otherwise quiet "mark" carriers 138.83 and 135.43 kHz.
Good luck
Markus, DF6NM
----- Original Message -----
From: "Paul-Henrik" <[email protected]>
To: <[email protected]>
Sent: Friday, January 16, 2009 10:41 PM
Subject: Re: LF: Re: QRG & MSG UPDATE: 136kHz test from OH1LSQ
Hello Mal, LF
I will consider a new frequency for tomorrow, right now I know some people have
set up their systems logging overnight in the hope
to find something there in the morning and I can only want to make short
excursions elsewhere.
Keep the QRG suggestions coming. How about 136.80 or 137.00kHz? I'm not
familiar with the LORAN QRM etc. you are experiencing there.
136.50kHz got thumbs down already yesterday so it needs to be higher than that.
73's
Paul-Henrik
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