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## Re: [TowerTalk] Phasing verticals and stubs

 To: towertalk@contesting.com Re: [TowerTalk] Phasing verticals and stubs Ian White GM3SEK Ian White GM3SEK Wed, 5 Apr 2006 16:22:12 +0100
 ```Don Havlicek wrote: >The 'right triangle' system utilizes two verticals per selected >direction with the third 'floating'. The 'equilateral triangle' system >uses all three verticals simultaneously, Any triangle system can be used with either two or three elements energized - check with ON4UN's book for details. In either case, the most practical and versatile system for beam switching is the equilateral triangle. When only two elements at a time are used (the third being disconnected), an equilateral triangle gives three directions along the sides. With three identical elements and ground-planes, you have easy reversal for a total of six directions. When all three elements are used, usually one is driven with 100% current, and the other two are driven at the same phase with about 50% current each. The beam directions are off the top or the bottom of the triangle (so they are moved around 60deg compared with the two-element case). The gain is higher using all three elements, but beam switching is much less simple so you may be practically restricted to only three directions. Any right-angled triangle would be less versatile than either of these equilateral cases. -- 73 from Ian GM3SEK _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo/towertalk ```
 Current Thread [TowerTalk] Phasing verticals and stubs, Tom Osborne Re: [TowerTalk] Phasing verticals and stubs, Don Havlicek Re: [TowerTalk] Phasing verticals and stubs, Tom Osborne Re: [TowerTalk] Phasing verticals and stubs, Bill Re: [TowerTalk] Phasing verticals and stubs, Don Havlicek Re: [TowerTalk] Phasing verticals and stubs, Ian White GM3SEK <= Re: [TowerTalk] Phasing verticals and stubs, Don Havlicek Re: [TowerTalk] Phasing verticals and stubs, Bill Re: [TowerTalk] Phasing verticals and stubs, Jim Lux Re: [TowerTalk] Phasing verticals and stubs, Ian White GM3SEK Re: [TowerTalk] Phasing verticals and stubs, Clive Whelan Re: [TowerTalk] Phasing verticals and stubs, Jim Lux Re: [TowerTalk] Phasing verticals and stubs, Tom Osborne Re: [TowerTalk] Phasing verticals and stubs, Gary Schafer Re: [TowerTalk] Phasing verticals and stubs, Tom Osborne Re: [TowerTalk] Phasing verticals and stubs, Gary Schafer