[Elecraft] WWV Clocks -- It's really WWVB

[Geoffrey Mackenzie-Kennedy]

----- Original Message ----- 
From: "John Magliacane" <kd2bd at yahoo.com>
Sent: Tuesday, April 04, 2006 7:00 PM

> While every amateur text I've come across states that the D and E layers
> disappear at night, they, in fact, do not.  They rise to higher altitudes 
> and
> remain ionized through background cosmic radiation.

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So I believe, and the elevated E layer during the night could also be 
responsible for some of the single hop transcontinental openings on 6m - 
unfortunately IMHO also called Auroral Es openings since they can occur 
occasionally when the Aurora is 'quiet'. I have noticed similar openings on 
40m at this QTH.

73,
Geoff
GM4ESD