There is no need to tension until its perflecty horizontal; I didnt even do
that when running jacketed #12 Copperweld single wire Beverages. Ive had
minimal trouble with military telephone wire with a sinewave shape that
varies 1-2' over 500-750'. This last storm (Sandy) did require a quick
splice of one of the five 2 wire reversibles. After awhile anything that
could fall off the trees will and there will be no more problems (-;. The
joys of living in the woods compared to an open field.
With electric fence insulators nailed into trees the wire is supported but
can slide as needed.
Carl
KM1H
----- Original Message -----
From: "Mike Waters" <mikewate@gmail.com>
To: "Grant Saviers" <grants2@pacbell.net>; "topband"
<topband@contesting.com>
Sent: Friday, November 09, 2012 10:41 PM
Subject: Re: Topband: Beverage Antenna
That's a good question. :-)
Maybe it has something to do with the tension each one will stand. I think
that CW or plated steel fence wire will stand a lot more tensioning than
coax.
73, Mike
www.w0btu.com
On Fri, Nov 9, 2012 at 9:36 PM, Grant Saviers <grants2@pacbell.net> wrote:
I'm not sure why the bidirectional coaxial cable Beveridge doesn't get
more discussion. It is described in ON4UN's book, and seemed to work
fine
when I built one at a prior QTH, although it does take two feedlines from
what would logically be the closest end to the shack. Given the price of
RG6 and surplus RG58/59 it is easier and potentially cheaper than open
wire
feedline. Three transformers and no relays. (page 7-88 5th edition and
earlier editions as well)
Is there some reason that a pair of open wires are significantly better?
Grant KZ1W
On 11/9/2012 4:24 PM, Mike Waters wrote:
Have you ever thought of using a 2-wire bi-directional Beverage? They
are
not complex at all. It only takes one more wire, two more simple
transformers, and one more run of coax. A remote relay and four extra
parts
even lets you use just one run of coax for both directions.
If you run a single wire Beverage in the opposite direction, then you
have
to put up twice as many supports (unless you have trees). But with a
two-wire Beverage, you can use the same supports for both directions.
73, Mike
http://www.w0btu.com/Beverage_**antennas.html<http://www.w0btu.com/Beverage_antennas.html>
On Fri, Nov 9, 2012 at 3:00 PM, Buck wh7dx <wh7dx@hawaii.rr.com> wrote:
Use RG-6 line in the future and run another Beverage in the opposite
direction - NW.
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