Re: GB3MCB on 23 cms [1 Attachment]
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Dave <dave@...>
Interesting trace Tim,
I can detect GB3MCB and, at the moment, can even
hear the CW ident. I'm also seeing doppler shifted signals from Aircraft
reflections.
Attached (I hope) is a screenshot taken using
SpectrumLabs a few moments ago.
As you will see, some direct and some
scattered/doppler signals.
However, the thing I wanted to ask about is the
frequency you mentioned. Is that dial frequency, or the frequency of the
actual recieved signal? I see that your trace is at about 1kHz in, so I
guess that you are using USB to received the signal? In which case, did
you add the 1kHz audio offset to the dial reading?
Personally, I tend to monitor using CW with a 600Hz
CW offset on the receiver and set the received signal to the 600Hz point on the
waterfall. The dial frequency at the moment is 1296.847.38MHz and I often
see that I need to add about 1kHz to what other people put out as the frequency
that they hear the beacon on to what I need to use in CW mode.
Dave (G0DJA)
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