Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Quad\s+questions\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Quad\s+questions\s*$/: 7 ]

Total 7 documents matching your query.

1. Re: [TowerTalk] quad questions (score: 1): Author: jim Jarvis <jimjarvis@optonline.net>; Date: Wed, 03 Dec 2008 05:14:39 -0500; Very interesting discussion. When I put my lightning bolt quad up, I was concerned with their system of simply tying all loops together at a common feedpoint. I went so far as to talk with Cebik abou; /archives//html/Towertalk/2008-12/msg00041.html (8,995 bytes)
2. Re: [TowerTalk] quad questions (score: 1): Author: Terry Conboy <n6ry@arrl.net>; Date: Wed, 03 Dec 2008 12:26:21 -0800; Jim, My models show that a 2 wl square loop will have a feed Z of around 270-300 ohms. This is the case for a single loop and also for a concentric loop around a 1 wl loop with both fed in phase from; /archives//html/Towertalk/2008-12/msg00056.html (9,409 bytes)
3. [TowerTalk] Quad questions (score: 1): Author: "Martin Sole" <msole@loxinfo.co.th>; Date: Mon, 24 May 2010 12:05:21 +0700; I am about to start work on re-installing my Lightning Bolt 2 element quad. Since we were granted access to 10, 18 and 24MHz I have decided to add these bands back on to the spreaders but I am mindfu; /archives//html/Towertalk/2010-05/msg00565.html (8,040 bytes)
4. Re: [TowerTalk] Quad questions (score: 1): Author: "Michael Baker" <k7dd@cox.net>; Date: Mon, 24 May 2010 04:10:10 -0700; Hello Martin, One sure way to break any common connection to the other elements is to use a line isolator/ 1:1 in line with each elements feed line. There is NO common ground connection at that point; /archives//html/Towertalk/2010-05/msg00567.html (9,678 bytes)
5. Re: [TowerTalk] Quad questions (score: 1): Author: "Jim Brown" <jim@audiosystemsgroup.com>; Date: Mon, 24 May 2010 08:55:52 -0700; The connundrum here is that words and phrases are being tossed around without an understanding of their meaning. At least one product sold as a ine isolator is nothing more than a common mode choke,; /archives//html/Towertalk/2010-05/msg00571.html (8,105 bytes)
6. Re: [TowerTalk] Quad questions (score: 1): Author: ab2kc@optonline.net; Date: Tue, 25 May 2010 01:38:15 +0000 (GMT); I used gamma matchs and 1:1 baluns made up of solenoid wound coax for each band. This arrangement allowed me to use horizontal AND vertical feedpoints on the TEN Meter driven loop and obtain 20dB iso; /archives//html/Towertalk/2010-05/msg00589.html (12,331 bytes)
7. Re: [TowerTalk] Quad questions (score: 1): Author: "Martin Sole" <msole@loxinfo.co.th>; Date: Tue, 25 May 2010 15:43:55 +0700; I'm not familiar with a 'line isolator' but on hearing the term I would surmise it to be equivalent to a common mode choke. Certainly a common mode choke at the feed point will provide the required p; /archives//html/Towertalk/2010-05/msg00596.html (9,943 bytes)

Current List: 1 - 7
Page: [1]