Carl,
It sounds like you are asking if transposing the two Beverage antenna wires
at either end will make a difference. It will not.
For a single, bi-directional Beverage or BOG, phasing does not matter. Are
you going to phase two parallel BOGs together?
73, Mike
www.w0btu.com
On Thu, Oct 3,
This is very convenient for me. Can I just put up two of these
side by side a foot apart and have a differential impedance of
around 600 ohms?
A two-wire Beverage operates in two modes, common mode (antenna) and
differential (transmission line) mode.
The common mode works correctly and
Rick,
Why don't you just mount them on permanent posts (or trees) 10' high?
That's what I and many others do. That ought to let you mow around them
without taking them down. My support posts are 100' apart.
Two 10' high 14 AWG wires spaced 12 would have an impedance of 710 ohms.
The impedance of
Correction: In my last message, I calculated the impedance at 60 high.
These are the impedances at 120 high:
Two 10' high 14 AWG wires spaced 12 would have an impedance of 710 ohms.
The impedance of both wires to ground would be 357 ohms.
73, Mike
www.w0btu.com
On 11/29/2012 8:14 AM, Mike Waters wrote:
Rick,
Why don't you just mount them on permanent posts (or trees) 10' high?
That's what I and many others do. That ought to let you mow around them
without taking them down. My support posts are 100' apart.
Thanks for the suggestions, but...
To: Mike Waters mikew...@gmail.com
Cc: topband topband@contesting.com
Sent: Thursday, November 29, 2012 6:06 PM
Subject: Re: Topband: 2 wire beverage question
On 11/29/2012 8:14 AM, Mike Waters wrote:
Rick,
Why don't you just mount them on permanent posts (or trees) 10' high?
That's what I
Topbanders,
ON4UN states in his book that the wires for a 2 wire reversible
beverage must be installed side by side, but also may be placed one
above the other with satisfactory results.
Did someone try this? How satisfactory is satisfactory?
Would you rather bite the bullet and install a bev
ON4UN states in his book that the wires for a 2 wire reversible beverage
must be installed side by side, but also may be placed one above the other
with satisfactory results.
Did someone try this? How satisfactory is satisfactory?
There is no difference at all.
If the feed system is right,
** Ive noticed no difference in any weather using field phone wire which
happens to be in wide use by many very competitive contesters and lowband
DXers. With 5 2 wire reversibles here and 750' of 1/2 feedline there is
no need for a preamp.
I'm talking about:
1.) impedance change
2.)
There is no practical difference, unless the wires happen to be widely
spaced. (But Tom knew that. :-)
Some people want to build their Beverages with the wires a foot apart. In
that case, one wire over the other would not be ideal.
73, Mike
www.w0btu.com
On Wed, Nov 28, 2012 at 9:49 AM, Tom
I think I might like to try some reversible beverages, but I would
like them to be made so I can easily roll up the wire on a spool
to do mowing, etc. I currently use 19 gauge aluminum electric fence wire
on 3 foot high plastic electric fence insulators with a spike
on the bottom. I space the
- Original Message -
From: Tom W8JI w...@w8ji.com
To: topband@contesting.com
Sent: Wednesday, November 28, 2012 10:49 AM
Subject: Re: Topband: 2 wire beverage question
ON4UN states in his book that the wires for a 2 wire reversible beverage
must be installed side by side, but also
Subject: Re: Topband: 2 wire beverage question
** Ive noticed no difference in any weather using field phone wire which
happens to be in wide use by many very competitive contesters and lowband
DXers. With 5 2 wire reversibles here and 750' of 1/2 feedline there is
no need for a preamp
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