> AA6E writes:
>
> It would be very interesting(!) if someone were to actually measure the
> incident polarization of typical skywave signals (actually, someone
> probably has.. the radio astronomy folks working at HF have to deal with
> nulling out interferers, etc., and I'm sure some one in the SW broadcast
> business has looked at this), particularly in terms of the short time
> statistics.
This was extensively investigated in the 1930's through the 1950's. I
believe the BBC and British Defense engineering staffs did a lot of the work
since they of farflung empire "over which the F-layer never de-ionized"
needed reliable HF links over very long paths - like from London to
Auckland. There were a number of reports and even books published on the
topic. I suggest looking through the archives of the IRE for the
appropriate info.
73, Ward N0AX
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