Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Towers\s+and\s+Open\s+Wire\s+Feeders\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Towers\s+and\s+Open\s+Wire\s+Feeders\s*$/: 5 ]

Total 5 documents matching your query.

1. [TowerTalk] Towers and Open Wire Feeders (score: 1): Author: "Adrian Rees" <rees.a@btconnect.com>; Date: Thu, 1 Feb 2007 10:25:46 -0000; Hi all I have been conducting a few experiments using open wire feeders to monoband Yagi's. So far things are looking very good. (I do not want to use Co Ax feeders due to the very long cable runs (a; /archives//html/Towertalk/2007-02/msg00003.html (8,205 bytes)
2. Re: [TowerTalk] Towers and Open Wire Feeders (score: 1): Author: "Dan Zimmerman N3OX" <n3ox@n3ox.net>; Date: Thu, 1 Feb 2007 05:40:08 -0500; It would (probably) add some phase shift to your tuned feeder system, and would probably require you to trim back to length at the shack end to get your impedance repeater back, but there's a trick t; /archives//html/Towertalk/2007-02/msg00004.html (8,782 bytes)
3. Re: [TowerTalk] Towers and Open Wire Feeders (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Fri, 2 Feb 2007 09:47:48 -0800; We use 50 ohm unbalanced to 450 ohm balanced transformers at the ends of our 450 ohm open wire line (about 250 meters long). Then the radio and antenna use short lengths of standard 50 ohm coax. We r; /archives//html/Towertalk/2007-02/msg00041.html (9,650 bytes)
4. Re: [TowerTalk] Towers and Open Wire Feeders (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Fri, 02 Feb 2007 09:51:51 -0800; What do you use for transformers? (i.e. core material and size) at what power level? (I just got a copy of Soft Ferrites by E.C. Snelling (supposedly the ultimate reference on the subject) from the l; /archives//html/Towertalk/2007-02/msg00042.html (8,395 bytes)
5. Re: [TowerTalk] Towers and Open Wire Feeders (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Fri, 2 Feb 2007 11:44:34 -0800 (PST); There is a 50 ohm to 50 ohm balun on one #43 2.4 inch toroid and a 50 ohm balanced to 450 ohm balanced transformer in cascade with this on three stacked #61 2.4 inch toroids. Works at the legal limit; /archives//html/Towertalk/2007-02/msg00045.html (9,105 bytes)

Current List: 1 - 5
Page: [1]