Re: VLF: W4DEX in Europe at 8820 Hz

[Paul Nicholson <vlf0403@abelian.org>]

Another plot from Wolf's receiver at Bielefeld,

 http://abelian.org/vlf/tmp/141202e.gif

This covers the full transmission from 22:30 UT in 50.5 uHz
bandwidth.   The line at 8820.0000 is 11.7 dB above the
noise in this 1980 bin span.

It is the strongest bin in +/- 0.5Hz (19800 bins).

Of course, I also checked nearby integer frequencies - when using
PPS GPS timing there is the possibility of weak harmonics from
the timing system.

I tried Cumiana with this narrower bandwidth but no improvement.

--
Paul Nicholson
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