On 2012-09-20, at 5:55 PM, wa3mej@comcast.net wrote:
>
>
> 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.
Hi Jim,
Back some 30 years ago, or so, we had just moved to a brand new house that was
blessed with a back yard full of tall, majestic poplar dollars---and I was
blessed with a perpetually empty bank account, so I had no tower!
The solution? I erected a 20-meter "gossimer(sp?) yagi" made out of wire with
wood spreaders, & I hoisted it up over a convenient tree limb; I then pulled
the thing taught, & attached a ground mounted rotator.
VOILA!
A rotatable 2-element yagi that would serve my needs until such time as the pin
money would allow me to erect a 48' self-supportinhg tower / Hy-Gain TH3 beam...
It worked extremely well for me---certainly MUCH better than any of the other
wire antennas that I'd tried to that point. I even wrote-up an article on it
that CQ magazine published in '82.
My only regret was that I never had the "altitude" to put up something similar
for 40-meters! Now THAT would have really been something...
~73~ de Eddy VE3CUI - VE3XZ
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UR RST IS ... ... ..9 QSB QSB - hw? BK
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