Topband: Is There A Post Sunrise Peak?

[charlesh3@msn.com (Charles Hutton)]

Earl:

Plots of signal strength (not S/N) show that there is often a quite
significant increase in signal strength at local sunrise of the DX target to
the west. See the Nick Hall-Patch article in QEX that was mentioned in the
last day or so. On Australian and Far Eastern paths from Washington state,
the signal strength increase can easily be 10 dB. Sometimes more, sometimes
less in a mysterious way.


Sure, there's a decline in noise level too.


Chuck