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21. Re: [TowerTalk] 80 Meter beam (score: 1): Author: <john@kk9a.com>; Date: Fri, 31 Mar 2017 20:37:31 -0400; You really have to want a rotatable 80m yagi as there are numerous challenges and expenses. I think a 4sq is about as good and it has greater bandwidth. John KK9A The most popular 80m rotatable anten; /archives//html/Towertalk/2017-03/msg00488.html (8,571 bytes)
22. Re: [TowerTalk] 80 Meter beam (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Fri, 31 Mar 2017 17:59:00 -0700; Vertically polarized antennas are strongly affected by ground quality. If you have good to very good ground conductivity and have a good radial system, that 4-sq will work great. But if you have poor; /archives//html/Towertalk/2017-03/msg00490.html (9,583 bytes)
23. Re: [TowerTalk] 80 Meter beam (score: 1): Author: Grant Saviers <grants2@pacbell.net>; Date: Fri, 31 Mar 2017 20:19:52 -0700; I (try to) work 80m LP SSB to EU many winter mornings from Redmond, WA. There are about a half dozen west coast stations that can often work them if they are there and 2 or 3 that can generate a pile; /archives//html/Towertalk/2017-03/msg00494.html (11,708 bytes)
24. Re: [TowerTalk] 80 Meter beam (score: 1): Author: David Aslin G3WGN <david@aslinvc.com>; Date: Sat, 1 Apr 2017 14:07:38 +0000; Grant, did you happen to also do a Pro/4 analysis of a 4-square over poor ground? At my new QTH I'm not going to be able to get a beam higher than around 125ft for 80m, and that would be a 2-el wire; /archives//html/Towertalk/2017-04/msg00004.html (11,158 bytes)
25. Re: [TowerTalk] 80 Meter beam (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Sat, 1 Apr 2017 09:38:09 -0700; Hi Dave, Any horizontal antenna at that height is going play quite well on 80M. The higher you can get the ends the better. 73, Jim K9YC _______________________________________________ ______________; /archives//html/Towertalk/2017-04/msg00008.html (7,619 bytes)
26. Re: [TowerTalk] 80 Meter beam (score: 1): Author: jimlux <jimlux@earthlink.net>; Date: Sat, 1 Apr 2017 09:59:50 -0700; On 4/1/17 7:07 AM, David Aslin G3WGN wrote: Grant, did you happen to also do a Pro/4 analysis of a 4-square over poor ground? At my new QTH I'm not going to be able to get a beam higher than around 1; /archives//html/Towertalk/2017-04/msg00009.html (11,487 bytes)
27. Re: [TowerTalk] 80 meter beam (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Sat, 1 Apr 2017 10:37:28 -0700; Not mentioned in the discussion: For 2 elements, a driven array can be tuned up for really high F/B ratio, like 20 to 30 dB, maybe even 40 dB on a good day. A 2 element Yagi will never do more than 1; /archives//html/Towertalk/2017-04/msg00011.html (8,241 bytes)
28. Re: [TowerTalk] 80 meter beam (score: 1): Author: jimlux <jimlux@earthlink.net>; Date: Sat, 1 Apr 2017 11:21:22 -0700; For 2 elements, a driven array can be tuned up for really high F/B ratio, like 20 to 30 dB, maybe even 40 dB on a good day. A 2 element Yagi will never do more than 10 dB or so F/B. On receive, a 2 e; /archives//html/Towertalk/2017-04/msg00012.html (9,478 bytes)
29. [TowerTalk] 80 Meter beam (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Sat, 1 Apr 2017 13:16:20 -0700; I would add that there are some interesting wire antennas (what started this thread) with low angle gain such as phased dipoles, V's and delta loops that well done aren't mega investments. Grant KZ1W; /archives//html/Towertalk/2017-04/msg00013.html (8,658 bytes)
30. Re: [TowerTalk] 80 meter beam (score: 1): Author: Guy Olinger <k2av@contesting.com>; Date: Sun, 02 Apr 2017 05:30:21 +0000; On 160 and to a lesser extent 80 RX antennas prove out better than TX antennas for listening. Set your TX antenna for some compromise of gain, bandwidth and azimuth coverage. As most RX solutions wor; /archives//html/Towertalk/2017-04/msg00015.html (10,942 bytes)

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