Re: [TenTec] Open wire line

[Bwana Bob <wb2vuf@verizon.net>]

Just think how strong his signal would have been if he had installed it 
the right way!
                73,

                Bob WB2VUF

On 2/13/2013 3:31 PM, Bry Carling wrote:
> I worked a guy the other day who was using 300 ohm TV twinlead as a transmitting
> feedline to a 70 foot long dipole. The feedline was buried underground,
> and it was also running up taoed to a metal mast to the center of the dipole.
> All kinds of things that break the "rules of ladderline and hamdom."
>
> I was astonished at what a great signal this guy had!
> As Chuck Berry sang: "It goes to show you never can tell."
>
> YMMV
> 73 de AF4K - Bry
> Sanford, FL
>
> On 12 Feb 2013 at 17:14, Edward Feustel wrote:
>
> > I have used the open wire and open wire antennas that TrueLadderLine
> > supplies. Formerly it was distributed by W7FY. The antenna is
> > supported
> > by trees at each end.  A rope attached to one end of the antenna
> > goes
> > over the tree.  A rope over the other tree is attached to a pulley.
> > A
> > rope attached to the antenna goes through the pulley goes to a hefty
> > counter weight.
> >
> > I found that the open wire line worked well, but my 210 foot doublet
> > that they had supplied kept breaking at the center insulator. The
> > strain
> > relief simply was not enough for my doublet and the 125 foot of
> > Dacron
> > line used to hold the antenna up.
> >
> > I replaced the horizontal wire with number 10 copperweld and the
> > center
> > insulator with a ceramic one. A 30 pound plastic canister of cat
> > litter
> > serves as a counter weight but it is not really heavy enough.
> >
> > Since I replaced the horizontal parts, I have not had any problems
> > with
> > winds or ice.
> >
> > Ed, N5EI
> >
> > On 2/11/2013 1:16 PM, Rick - DJ0IP / NJ0IP wrote:
> > > Well I think the "true ladderline" looks pretty big and bulky and
> > ugly and
> > > subject to catching too much wind.
> > >
> > > It's very easy to build your own ladderline if you have the right
> > spreaders.
> > > IMO, the very best there is, and nothing else come even close:
> > > http://www.hfparts.com/eng/products.php
> > >    
> > > You can see where I used the smallest ones in the pictures of my
> > shack in
> > > OKC, here: http://www.dj0ip.de/my-station/oklahoma-2010/
> > > Using the small set as I used here, you get about 450 Ohms.
> > > Longer spreaders can give you 600 Ohms or even more.
> > > Take your pick. They come in several sizes.
> > >
> > > Outside the shack I spaced the spreaders about 1 ft. apart.
> > > Inside the shack I spaced them about 6" apart.
> > >
> > > Although they slip right onto the wires quite easily, they don't
> > slip off.
> > > Unfortunately I don't think they have a US distributor.
> > > You'll have to order from Germany.
> > >
> > > 73
> > > Rick, DJ0IP
> > >
> > >
> > > -----Original Message-----
> > > From: TenTec [mailto:tentec-bounces@contesting.com] On Behalf Of
> > Andrew
> > > Flessner
> > > Sent: Sunday, February 10, 2013 7:50 PM
> > > To: tentec@contesting.com
> > > Subject: [TenTec] Open wire line
> > >
> > > When I considered what I could build for a single multiband
> > antenna that
> > > would fit on the apartment roof and reading as many sources of
> > info I could,
> > > including Maxwell, W2DU, I made a 132' doublet fed with 450 ladder
> > line. I
> > > later changed it to open wire with 4" spacing. It works very well
> > on 80-6
> > > meters, tuned with my 238 tuner. I do use a Balun Designs 4:1
> > "tuner balun"
> > > just outside the house with 10 ft of RG-213.
> > >
> > > Here are 3 sources for open wire line, there may be others.  I
> > built the
> > > first because I had most of the parts.
> > >    
> > >    I think the True Ladder Line product probably makes the most
> > sense based on
> > > price/effort, etc.
> > >     
> > >    Andy K9ARM
> > >     
> > >    http://www.youtube.com/watch?v=FKGB6qkXs
> > >     
> > >    http://www.trueladderline.com/
> > >    
> > > http://www.73cnc.com/product_p/ls100.htm
> > > _______________________________________________
> > > TenTec mailing list
> > > TenTec@contesting.com
> > > http://lists.contesting.com/mailman/listinfo/tentec
> > _______________________________________________
> > TenTec mailing list
> > TenTec@contesting.com
> > http://lists.contesting.com/mailman/listinfo/tentec
> >
> >
> > -----
> > No virus found in this message.
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> > Version: 2013.0.2899 / Virus Database: 2639/6100 - Release Date:
> > 02/12/13
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