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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Understanding\s+Antenna\s+Impedance\s+Measurements\s+\(wasFoam\s+cables\s+and\s+velocty\s+factor\)\s*$/: 3 ]

Total 3 documents matching your query.

1. Re: [TowerTalk] Understanding Antenna Impedance Measurements (wasFoam cables and velocty factor) (score: 1)
Author: "Robert Chudek" <k0rc@pclink.com>
Date: Mon, 14 Nov 2005 22:45:15 -0600
Jim, Roger, Tom, Okay, it's starting to sink in now! Yes, I was using a 1/2 wavelength feedline. That's where this thread started, I cut and tuned some RG-8x to 1830 KHz. So when I analyze the antenn
/archives//html/Towertalk/2005-11/msg00485.html (9,610 bytes)

2. Re: [TowerTalk] Understanding Antenna Impedance Measurements (wasFoam cables and velocty factor) (score: 1)
Author: Jan Erik Holm <sm2ekm@telia.com>
Date: Tue, 15 Nov 2005 08:49:12 +0100
How do you mean now? At multipels 1/2 wl electrical transmission line length the load Z will be seen at the other end, i e it will be transparent. 73 Jim _____________________________________________
/archives//html/Towertalk/2005-11/msg00488.html (7,556 bytes)

3. Re: [TowerTalk] Understanding Antenna Impedance Measurements (wasFoam cables and velocty factor) (score: 1)
Author: Jim Lux <jimlux@earthlink.net>
Date: Tue, 15 Nov 2005 14:27:19 -0800
But the line's only 1/2 wl at one frequency.. at lower frequencies, it's less than 1/2wl and at higher, it's more. Given the electrical length of the line (at some one frequency), though, you can fig
/archives//html/Towertalk/2005-11/msg00511.html (9,793 bytes)


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