Hi Peter the RTTY signal is CFH which straddles 137.000 with a nominal 82Hz
shift but it is very difficult to get an accurate cal from that (the shift
on a waterfall looks more like 78Hz). If you dont have them, I can send you
a list of Lessay Loran-C lines in the area of the QH transmissions. If your
cal is a long way out (10s of Hz you can usually id the error by ID-ing
lines by the frequency difference) The Lessay lines will be fairly strong
in daylight. Cal should be possible to around 0.1Hz that way.
Cheers de Alan G3NYK
[email protected]
----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: 27 December 2003 09:57
Subject: LF: QH rx tests
seasons greetings to all on the list.
thought I would do some listening / looking for QRSS
need to calibtate RX for 137.7890 and 137.700 . last summer RX appeared to
be off frequency by 20/30 hz
can see Rtty signal with tones at 136.970 and 137.040 this morning.
can someone please advise the exact frequencies they are on so I can
calibrate system.
Are there a couple of loran lines to calibrate on closer in to the
operating frequency of QH when Argo is set to 60 sec mode.
thanks
peter g8afn
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