- 1. Topband: Coax velocity factor (score: 1)
- Author: Charles Bibb <zedkay@bellsouth.net>
- Date: Tue, 27 Mar 2007 20:10:59 -0600
- Hi, All I'm installing an end-fire pair of phased Beverages here and decided to actually measure the velocity factor of my coax (RG-6, foam dielectric) before cutting the phasing line. Measured out a
- /archives//html/Topband/2007-03/msg00129.html (6,932 bytes)
- 2. Re: Topband: Coax velocity factor (score: 1)
- Author: "Victor Kean" <vkean@ds.net>
- Date: Tue, 27 Mar 2007 23:30:29 -0400
- I've been building phased arrays recently, and I too have been measuring the velocity factor of RG-6. Some Belden 1189A used for end-fire phasing lines measures 83%, which is consistent with the dat
- /archives//html/Topband/2007-03/msg00131.html (7,350 bytes)
- 3. Re: Topband: Coax velocity factor (score: 1)
- Author: "EP Swynar" <gswynar@durham.net>
- Date: Wed, 28 Mar 2007 06:43:43 -0500
- On 27th March Charles wrote... me, especially when 75% is the published value for RG-6, though I know the VF of foam cable is higher. Anyone else get similar results when checking this type of cable?
- /archives//html/Topband/2007-03/msg00134.html (7,859 bytes)
- 4. Re: Topband: Coax velocity factor (score: 1)
- Author: W0UN -- John Brosnahan <shr@swtexas.net>
- Date: Wed, 28 Mar 2007 06:48:23 -0500
- The VF of solid-dielectric cables is much easier to control than that of foam cables. For a solid cable the VF is just a function of the properties of the dielectric material. But for FOAM cables the
- /archives//html/Topband/2007-03/msg00135.html (8,118 bytes)
- 5. Re: Topband: Coax velocity factor (score: 1)
- Author: "Tom Rauch" <w8ji@contesting.com>
- Date: Wed, 28 Mar 2007 07:50:28 -0400
- Hi Charles, First, most people using the designator "RG-6" should not be doing it. RG numbers are joint army navy (JAN) numbers for standard cables that are built to a certain detailed spec. The onl
- /archives//html/Topband/2007-03/msg00136.html (8,768 bytes)
This search system is powered by
Namazu