Topband: Beverage Antenna
ZR
zr at jeremy.mv.com
Sat Nov 10 08:34:03 EST 2012
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 at gmail.com>
To: "Grant Saviers" <grants2 at pacbell.net>; "topband"
<topband at 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 at 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 at hawaii.rr.com> wrote:
>>>
>>> Use RG-6 line in the future and run another Beverage in the opposite
>>>> direction - NW.
>>>>
>>>> ______________________________**_________________
>>> Topband reflector - topband at contesting.com
>>>
>>>
>>
> _______________________________________________
> Topband reflector - topband at contesting.com
>
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