All:
John's post about long-path to Japan on top-band is very interesting. It
would seem, as John mentioned, to be very rare.
The greatcircle path from W1-to-JA in early January at 2200 UTC falls
somewhat on the grayline, but much of it is already in sunlight. There would
seem to be a lot of absorption as well as path skewing due to the gradient
along the day/night ionosphere.
If the top-band signal skews away from the daylight side of the day/night
terminator, how can it make it long-path from W1-to-JA if not by the
greatcircle path? If we forget about the skewing for a moment, the daylight
path is still severely absorbed as it bounces through the D-region with a
bunch of lossy E-hops.
I've learned to keep an open mind when it comes to propagation, but how can
this path work when the "laws" of ionospheric physics say otherwise?
73 Tony KT2Q
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