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1. [TowerTalk] Portable Phased Arrays! (score: 1): Author: Dino Darling <dino@k6rix.com>; Date: Tue, 27 Jun 2006 19:08:37 -0700; New thread; lets hear about the portable phased arrays Jim! Dino - K6RIX dino@k6rix.com _______________________________________________ _______________________________________________ TowerTalk maili; /archives//html/Towertalk/2006-06/msg00654.html (7,346 bytes)
2. Re: [TowerTalk] Portable Phased Arrays! (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Tue, 27 Jun 2006 19:52:22 -0700; Still in the tinkering stage. Design criteria: From wheels stop to fully deployed and on the air in <20 minutes. This is a pretty challenging constraint, in itself.. No fiddling with hose clamps, for; /archives//html/Towertalk/2006-06/msg00657.html (7,890 bytes)
3. Re: [TowerTalk] Portable Phased Arrays! (score: 1): Author: "Paul Playford" <paul@w8aef.com>; Date: Tue, 27 Jun 2006 22:26:41 -0700; You may want to consider parasitic feed. That could simplify phasing a bunch. And you may find that vertical dipoles are quicker to deploy (depending on the frequency) de Paul, W8AEF ________________; /archives//html/Towertalk/2006-06/msg00658.html (9,869 bytes)
4. Re: [TowerTalk] Portable Phased Arrays! (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Wed, 28 Jun 2006 06:53:09 -0700; Phasing is about the same regardless: you need an LC network for each element, and having active feed to all elements allows a bit more freedom, because you don't have to depend only on mutual coupli; /archives//html/Towertalk/2006-06/msg00659.html (8,816 bytes)
5. Re: [TowerTalk] Portable Phased Arrays! (score: 1): Author: "Paul Playford" <paul@w8aef.com>; Date: Wed, 28 Jun 2006 09:08:07 -0700; I have experience with 4 square phased arrays. Over a dozen so far. The advantage of parasitic feeding is simplicity. I erect the 4 elements with elevated radials in their calculated positions (.22 w; /archives//html/Towertalk/2006-06/msg00660.html (10,375 bytes)
6. Re: [TowerTalk] Portable Phased Arrays! (score: 1): Author: Jim Lux <jimlux@earthlink.net>; Date: Wed, 28 Jun 2006 09:51:20 -0700; And this strategy works well for a single band, and for a nice symmetric layout. When you start looking at multiband operation and arbitrary layouts, you wind up with situations where "you can't get; /archives//html/Towertalk/2006-06/msg00661.html (9,858 bytes)
7. Re: [TowerTalk] Portable Phased Arrays! (score: 1): Author: "K6XN" <k6xn@comcast.net>; Date: Wed, 28 Jun 2006 10:20:54 -0700; Team I have had similar experiences as Paul and I agree with everything Paul has said. I would only add that it has been my experience that if I use the standard Comtek recommended phasing line confi; /archives//html/Towertalk/2006-06/msg00662.html (12,195 bytes)

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