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Old December 31st 04, 02:29 AM
ml
 
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Default best low dipole?

i am going to build a dipole for some travels

i am sure i won't be able to put it up much higher than i can reach
easily lets say ten ft

whats best a carolna windom or a g5rv?


i'll be stringing it between some trees won't have the option of
'throwing' etc to get into branches only what i can direct reach
10ft max height of ground
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Old December 31st 04, 09:23 AM
Rick Frazier
 
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If you can only get the antenna up 10 feet, forget about the carolina
windom. It relies on the vertical section, and unless you can get the
antenna high enough so the vertical section is above ground, the antenna
is miserable to live with. Even when the vertical section is all
vertical (the isolator at the bottom of the vertical section is near the
ground) the antenna doesn't perform as I think it should. I have a 160
carolina windom, and with the short end at 40 feet, the long end needs
to be at least ten feet off of the ground before the antenna starts to
work well. If the long end is lower than that, the isolator at the
bottom of the vertical section nearly touches the ground, and swr gets
worse and the low swr points move out of the ham bands...

I've found that some monofilament fishing line and a few sinkers can be
invaluable for getting a temporary antenna up higher than I can reach...
There are usually some sort of objects (trees, buildings, poles, etc)
that can be used to get an antenna up a bit if you are using
monofilament to hoist the ends up. I've got away with all sorts of
temporary antennas in some pretty unlikely places, using little more
than some fishing line and 24 gauge insulated wire. 30 gauge would be
even better, as it's nearly invisible, but it tends to be too fragile
for my hoisting techniques... Your mileage may vary...

Thanks
--Rick AH7H

ml wrote:

i am going to build a dipole for some travels

i am sure i won't be able to put it up much higher than i can reach
easily lets say ten ft

whats best a carolna windom or a g5rv?

i'll be stringing it between some trees won't have the option of
'throwing' etc to get into branches only what i can direct reach
10ft max height of ground


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Old December 31st 04, 08:15 PM
Simon Smith
 
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Ha ha ha ha ha ha !!!!!! I havnt stopped laughing for an hour .......
Simon
"Bill Turner" wrote in message
...
On Fri, 31 Dec 2004 01:29:04 GMT, ml wrote:

i am sure i won't be able to put it up much higher than i can reach
easily lets say ten ft

__________________________________________________ _________

If you can reach ten feet, there are a number of basketball clubs which
will be glad to pay you millions of dollars a year, and then you can
hire someone with a stepladder to put it up for you.

See, there's always a way! :-)

--
Bill, W6WRT



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