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References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+velocity\s+factor\?\s*$/: 4 ]

Total 4 documents matching your query.

1. [TowerTalk] velocity factor? (score: 1): Author: Hans Hammarquist via TowerTalk <towertalk@contesting.com>; Date: Wed, 8 Oct 2014 13:19:21 -0400; Dear Ham Friends, Recently I checked my feed lines to my tower. I have 1" hardlines, each 88 feet long. I checked the loss by measuring the SWR at various frequencies. (~0.8dB @150MHz) I decided to a; /archives//html/Towertalk/2014-10/msg00076.html (7,318 bytes)
2. Re: [TowerTalk] velocity factor? (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Wed, 08 Oct 2014 11:19:58 -0700; A couple of comments. First, Vf varies slightly with frequency (typically 1% between 2 MHz and 50 MHz. How did you measure Vf? Measuring the resonant frequency of the line as a stub will yield the va; /archives//html/Towertalk/2014-10/msg00077.html (7,960 bytes)
3. Re: [TowerTalk] velocity factor? (score: 1): Author: "Gary - AB9M" <glhuber@msn.com>; Date: Wed, 8 Oct 2014 14:01:13 -0500; Hans, the VF of coax or any cable is greatly depends on what is in contact with the skin of the conductor. Air, semi air, foam, solid dielectrics, will each will have a different effect on the skin.; /archives//html/Towertalk/2014-10/msg00078.html (8,514 bytes)
4. Re: [TowerTalk] velocity factor? (score: 1): Author: TexasRF--- via TowerTalk <towertalk@contesting.com>; Date: Wed, 8 Oct 2014 16:33:28 -0400; Hans, I have seen foam filled hardline with velocity factors in that range. Your loss test shows that the cable is ok. 73, Gerald K5GW In a message dated 10/8/2014 10:19:35 A.M. Pacific Daylight Time; /archives//html/Towertalk/2014-10/msg00079.html (8,165 bytes)

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