Decidedly the spectrogram-like programs are less than ideal for
detecting the presence of a Wolf signal.
Look at this picture : http://www.qsl.net/i2phd/argo/jimwolf.html
It has been taken just a few minutes ago, receiving the test transmission
of Jim M0BMU, who at the half-hour period has sent the CW ID and
a steady carrier for a few minutes.
Yes. That is exactly why I have suggested that a WOLF transmission should
have a few seconds of unmodulated carrier (or perhaps identifiably modulated
- wobble) every few minutes. Also that any GUI-based WOLF front end should
include a spectrogram-type window. This would allow WOLF transmissions to
be seen without knowing in advance that they were there, and would also help
frequency alignment. This would overcome one of the real difficulties in using
the mode for random QSOs.
Mike, G3XDV (IO91VT)
http://www.lf.thersgb.net
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