Jim,
VP6DX 4 years ago used VDAs (vertical dipole arrays) on all bands, 20 Meters
and higher frequencies. They were vertical wire dipoles with a reflector.
The results speak for themselves.
30 Meters, 40 Meters and 75 Meters SSB were 4-squares. 80 CW and 160 were
single verticals.
If you want, reply directly to me and I will send you a few photos of the
VDAs installed at the ocean's edge.
de Milt, N5IA
-----Original Message-----
From: wa3mej@comcast.net
Sent: Thursday, September 20, 2012 2:55 PM
To: topband@contesting.com
Subject: Topband: Vertical dipoles in the real world
I noticed that some of the DXpeditions are using vertical diipoles next to
the sea on at least some of the higher bands ( I am guessing 20 and up). I
stuffed the data into EZNEC 5.0 and came up with some suprising results,
hope I did it correctly I am not an antenna guru . Now as Tom has just
indicated modeling is great but its only modeling it doesnt really tell what
happens in the real world/ground conditions etc.
Does anyone have any real world experience with these dipoles? Do they work
in non beach environments such as near the mountians? Comments welcome...
and I am willing to take the comments off list if it suits you.
If this is not a fools folley I will put together what I find suprising and
put it on my web site for everyone to access but I dont to take the time to
document it if its a waste of time.
Jim
http://www.qsl.net/wa3mej/index.htm
----- Original Message -----
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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