Could this path be enhanced by the Earth / Ionosphere waveguide
propagation mode, prevalent at lower frequencies. I know it is rather too
high frequency to be normally considered for this mode, but with a D layer
'height' of around 75km (is that right ?) the waveguide guide width is
something like 8 wavelengths so something may be feasible.
Just a thought
Andy G4JNT
Assuming Laurie and John's reports check out OK, this will be
something quite extraordinary. Given the noise level on 73k, and
the reduced ERP available on the band, propagation losses would
have to be very much less than on 136k - I wonder what the
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