Just as a heads-up for anyone interested in this subject -- in the December
QST just now arriving in subscribers' hands, there is a cool article on X-O
circular polarization (CP) antennas. The author (Eric Nichols, KL7AJ)
discusses the fact that all F-layer ionospheric propagation is actually
We used most of this at N4A this summer, see my other post for details.
Actually converting this to circular polarization at the RX end is
self-defeating because the rotation of polarization is itself
rotating, not at all steady. If listening to the two antennas
separately in diversity, one is
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