[Elecraft] 6 meters - need info (OT?)

Bill W5WVO w5wvo at cybermesa.net
Thu Sep 27 12:16:15 EDT 2007


Ken Kopp wrote:

> Six tends to peak near the Spring and Fall equinox because
> of the earth's tilting towards the sun at these times.

Probably a typo, but should be corrected.  :-)  6M sporadic-E propagation 
peaks around the SOLSTICES (June and December), not the equinoxes. There is 
rarely ever any sporadic-E propagation around the equinoxes.

The summer Es season in North America typically runs from mid-May through 
mid-August, with the southeast US getting some early sporadic-E openings by 
late April. The winter Es season, in which the openings are typically less 
numerous and weaker than during summer, extends from roughly late November 
through mid-January. Sporadic-E can occur at any time, but it is extremely 
rare from mid-February through mid-April and from mid-September through 
mid-November in North America.

There is a tremendous amount to be learned about 6 meter propagation. It is 
the only band we have where ALL known radio propagation modes (and probably a 
few unknown ones) can be experienced at one point or another. It is truly a 
mix of HF and VHF characteristics.

Bill / W5WVO
DM65 



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