Joel, it is indeed different and I used the word "differently" in my
Subject!
As I see it, your suggestion would have 2x the loss of a single piece of
coax. Since this is primarily my low band antenna, that probably wouldn't
matter too much. I would need about 50 ft. of the twin coax to reach a
point where I could run normal openwire to without obstructing the view of
our house.
Tnx.
73
Rick
-----Original Message-----
From: tentec-bounces@contesting.com [mailto:tentec-bounces@contesting.com]
On Behalf Of joel hallas
Sent: Saturday, October 01, 2005 5:54 PM
To: Discussion of Ten-Tec Equipment
Subject: Re: [TenTec] Openwire fed differently
Well, if one coax is ok, how about 2? You can make a balanced feedline
from two coax cables in parallel, with their shields tied together (I
suggest at both ends, and they may be grounded if you want). With 50 ohm
coax it will be a 100 ohm balanced line if you feed the two center
conductors. I use short lengths of this to bring my ladder line fed
antenna connections through the outer wall of our house. With this you
don't have the problem of being near metal, etc.
OTOH, you have the same loss as with coax. So you want to make this a
short connection between ladder line at each end, or in my case, I go to
a balun with the "balanced coax", as the feed enters the house and then
have a relatively short run of coax to the tuner.
It's not perfect, but it might solve your problem!
73 & GL, Joel, W1ZR
NJ0IP wrote:
>I changed to a new thread on this openwire stuff.
>
>
>
>Background:
>
>I've moved my shack to the basement of my typical Bavarian house.
>
>The front of our (stucko) house is painted with typical Bavarian artwork
and
>my XYL lights up the front side with lights at night.
>
>For some reason she thinks the ladderlines ( I have two, because there are
>two antennas) disturb this traditional Bavarian picture and she nixed the
>idea of me running the ladderline into the basement window on the front
side
>of the house. So now I'm stuck with about $3000 worth of Annecke
>symmetrical tuners and no openwire antenna.
>
>
>
>Challenge:
>
>Well I'm a cw contester and an SSB rag chewer. I need an antenna to cover
>both portions of the band.
>
>I have a solid state Linear Amp (Henry SS750-HF) that needs a relatively
>good SWR.
>
>An 80m dipole just won't cut the mustard.
>
>At least here in Europe we don't need to cover such a large frequency
range.
>
>Our 80m band begins at 3500 and ends at 3800.
>
>We don't have any 75m privileges.
>
>
>
>Money Money Money:
>
>Here in Europe there are a couple of companies offering remote symmetrical
>tuners, but they go for about $2000 a piece.
>
>OUCH.
>
>Well I can run coax out the shack and under ground and place one such a box
>in the yard somewhere.
>
>I hate to think of buying even one, and certainly cannot afford two of
these
>beasts.
>
>
>
>Ideas:
>
>Anyone have any suggestions?
>
>What else is available?
>
>
>
>73
>
>Rick
>
>DJ0IP / DJ2T / NJ0IP
>
>Munich, Germany
>
>
>
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>
>
>
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