Re: LF: Little TX test at 8270.00046 from JN64

[Paul Nicholson <vlf0403@abelian.org>]

Overnight noise very high again, has been for a few nights.
Big storms out in the Atlantic making life hard for a VLF
receiver.

From here the noise peaks at about 245 degrees, W4DEX is
on 285 deg and IW4DXW on 161 deg.

Both signals very weak against the noise in a cardioid
response on their great circle bearings.   But by pointing
at 015 degrees, both are 12dB over noise in a 12 hour coherent
integration, 23.1 uHz.

 http://abelian.org/vlf/tmp/171212a.gif

A severe case of aiming off.  The amplitudes appear low because
we're beamed well away from the great circle to both stations.
Both signal strengths are quite good, about right for their
distance and would be an impressive display without the noise.

--
Paul Nicholson
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