[TransAtlantic] MUF at 90 MHz

[Eugene Zimmerman]

Mark

During the June 19 2M Es here in the US there were three contacts made that
may be double hop. From TN to DO21 in VE6 is 2900+ km and two from DN70/DM69
deep into FL were at 2700+ km. So it happens. But it is exceedingly rare in
the US - less than a dozen and maybe much less than a dozen ever reported.
In Europe it is more common - usually once or twice a summer from central or
Eastern Europe to EA8 or rarely from Spain to the middle East.

So it is possible but probably very very unlikely that two E clouds could
line up far enough north to support US-Europe on 2M. As Joe says later
communication is important because if such a path exists it will not be
there except for a few minutes.

Tropo is still the best bet. And probably from the Caribbean from some
mountaintop to the Iberian peninsula rather than from the US. However
conditions in 1957-59 did exist in August of those years for a possible
contact but they have not as far as I know ever returned.

73 Gene W3ZZ

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Message: 1
Date: Wed, 30 Jun 2010 16:10:18 -0400
From: "Mark Casey" <map at mapinternet.com>
Subject: [TransAtlantic] MUF at 90MHz this AM. 2m double-hop e-skip
	possible?
To: "TA-WRemailer-TransAtlantic" <transatlantic at mailman.qth.net>
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This morning about 8-10am the MUF went above 90MHz here in FN32sb 
(massachusetts,usa).

I've been watching for propagation this e-skip season.

DF5AI and DK5YA have a lengthy paper on long distance 144MHz on DF5AI's 
website. In the paper they discuss theory about the propagation mode(s) of 
3500km+ QSO's during May-June-July of 2003.

The possibility of double-hop (or extended hop)2m e-skip, 2m e-skip combined

with tropo and various propagation types are discussed.

Any comments on the possibility that double-hop 2m e-skip, or 2m 
e-skip+tropo is possible, or some type of propagation combining e-skip, 
tropospheric or ionospheric bending, ducting, or tropo-scatter, or any other

type of propagation might lead to a contact between Europe and North 
America?

73
Mark K1MAP FN32sb