As has already been said there does not seem to be any correlation between a
sloar cycle and the occurrence of sporadic E (Es) openings on 6m, certainly
at temperate latitudes. But something worth watching for during years of
high solar activity, especially around the time of an equinox, are those
very interesting but quite rare (perhaps) long haul openings over paths
which cross the geomagnetic equator. The propagation involved, putting aside
any multihop Es, appears to be regular F layer, sometimes Transequatorial
Propagation (TEP), between the southern and northern hemispheres and then Es
for the remainder of the northern path. An example of this was the reception
of the Cook Island 6m beacon ZK1AA during a double hop Es opening to
California in October 1969 when I was living near Montreal P.Q. (VE2AIO).
Since 1956 I have found that Es openings on 6m do occur during any month of
the year, but are certainly much more frequent during the 'summer and winter
seasons'.
73,
Geoff
GM4ESD
Don Rasmussen wrote on Wednesday, April 02, 2008 12:21 AM
Are there more sporadic E openings on 6 meters closer
to the sunspot cycle maximum?
How bad is a "poor" Summer for 6m CW & SSB, and on
average how often does that happen as compared to a
decent Summer of stateside DX on 6 meters?
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