[Elecraft] recommendation for portable antenna
W3FPR - Don Wilhelm
w3fpr at earthlink.net
Fri Mar 18 15:42:27 EST 2005
Tony and all,
OK to answer 2 questions at once -
I don't have a decent fiberglass pole at the moment, just some push up
painter pole extensions from Home Depot - they are plenty stiff, but too
long when collapsed for quick and easy transport. The long fishing poles are
too flimsy, the poles sold by MFJ and (I believe) Wilderness Radio are a bit
more stable, but I will soon be buying one of K4TMC's telescoping poles
which are designed to hold flags and windsocks at the beach very soon. See
http://www.tmastco.com/TelepolePage.htm for more info on my planned pole
purchase - he has heavy duty poles that will extend to 32 feet and collapse
to 46 inches.
As for end insulators and center supports - I don't have pictures, but I use
1/4 inch Lexan sheet stock - I pick it up in the cutoff bin at the local
commercial plastics supplier (your yellow pages should tell you where to
find one near you) I cut a strip about 3/4 inch wide and 2 inches long for
the end insulators - drill a 1/4 inch hole in each end. For the center
support, I use a triangle shape about 2 inches on each side and a 1/4 inch
hole near each corner. two holes are for the antenna wire and feedline
junction, and the third hole is for a support rope where used. A supply of
5/32 inch dacron coated black line provides the rope supports and when
required, guy wires. A supply of tent stakes can hold the guy wires at
ground level - don't forget to take along a roll bright colored surveyor
flag tape to tie to the guy wires so other folks can see them where there is
danger of others walking through your antenna site.
After I get my pole, I will come up with some type of base support for it.
Lashing the base to something heavy or immovable object(like a medium size
bush) does for now.
73,
Don W3FPR
> -----Original Message-----
>
> Don wrote:
> > stretched out on the sand. Yes, MY pole needs to be 22 to 23 feet long.
> Don,
>
> What type of pole(s) do you use?
>
> Thanks
> Tony
> G7IGG
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