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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*Topband\:\s+Open\s+wire\s+line\s+vs\.\s+Paralleled\s+coaxials\.\s*$/: 8 ]

Total 8 documents matching your query.

1. Topband: Open wire line vs. Paralleled coaxials. (score: 1)
Author: "David J. Sourdis" <hk1kxa@hotmail.com>
Date: Wed, 4 Nov 2009 19:53:44 -0500
I have a friend's farm near the coast line to use for contesting/DX. There is a group of palm trees, very tall, one of them is 25+ m. Interesting posibilities for a vertical array for top band, but i
/archives//html/Topband/2009-11/msg00146.html (7,787 bytes)

2. Re: Topband: Open wire line vs. Paralleled coaxials. (score: 1)
Author: "Price Smith" <w0rihps@sbcglobal.net>
Date: Wed, 4 Nov 2009 21:40:15 -0600
David, On 160 meters, I would not worry about the losses. RG6 is very low loss on 160. If you have it, use it. 73..Price W0RI I have a friend's farm near the coast line to use for contesting/DX. Ther
/archives//html/Topband/2009-11/msg00155.html (8,747 bytes)

3. Topband: Open wire line vs. Paralleled coaxials. (score: 1)
Author: Dennis OConnor <ad4hk2004@yahoo.com>
Date: Thu, 5 Nov 2009 06:41:47 -0800 (PST)
I have long runs of both 600 ohm open wire line and coax... I have runs of coax out to a 1000 feet that on 80 meters and to 1500 feet on 160 meters... I do not find the coax losses to be a problem...
/archives//html/Topband/2009-11/msg00168.html (6,881 bytes)

4. Re: Topband: Open wire line vs. Paralleled coaxials. (score: 1)
Author: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Thu, 05 Nov 2009 10:27:31 -0800
There is plenty of published data for the loss in coax. In general, it increases with wire resistance (skin effect), which is aproximately the square root of frequency. While the loss in coax is smal
/archives//html/Topband/2009-11/msg00179.html (7,746 bytes)

5. Re: Topband: Open wire line vs. Paralleled coaxials. (score: 1)
Author: Rudy Bakalov <r_bakalov@yahoo.com>
Date: Thu, 5 Nov 2009 18:47:36 -0800 (PST)
The issue here is not about regular coax cable, but about making open wire cable using coax.  Open wire lines do not have to look like the ones everyone is using, but in fact can be made of parallel
/archives//html/Topband/2009-11/msg00187.html (9,727 bytes)

6. Re: Topband: Open wire line vs. Paralleled coaxials. (score: 1)
Author: "Rick Karlquist" <richard@karlquist.com>
Date: Thu, 5 Nov 2009 19:18:09 -0800
No. The power handling capability is doubled. The insertion loss is unchanged. Dielectric losses in coax are neglgible on 160 meters. Nearly all loss is conductor loss. Again, the dB/100 ft loss of t
/archives//html/Topband/2009-11/msg00188.html (8,844 bytes)

7. Re: Topband: Open wire line vs. Paralleled coaxials. (score: 1)
Author: Rudy Bakalov <r_bakalov@yahoo.com>
Date: Thu, 5 Nov 2009 19:46:51 -0800 (PST)
There are two ways of connecting coax cable to create open wire lines- series and parallel. In series-connected coaxial cable, we use the center conductors of two coaxial cables that run side-by sid
/archives//html/Topband/2009-11/msg00189.html (10,580 bytes)

8. Re: Topband: Open wire line vs. Paralleled coaxials. (score: 1)
Author: "David J. Sourdis" <hk1kxa@hotmail.com>
Date: Thu, 5 Nov 2009 23:16:35 -0500
Hello, The Antenna Book says is not as good as ladder line regarding losses. The impression I had when I read it, is that it was better than coax anyway, and not for the doubled power rating. There i
/archives//html/Topband/2009-11/msg00190.html (10,412 bytes)


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