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1. [TowerTalk] Antenna Choices (score: 1): Author: <doktorij@bellsouth.net>; Date: Thu, 29 Jun 2006 7:44:07 -0400; Allen, Just went through a similiar mental exercise as you. My interests are the same, contesting and DX. The mast I use (AB-621) is about 52' tall. I have a 2 element 5 band quad at one location and; /archives//html/Towertalk/2006-06/msg00691.html (7,818 bytes)
2. Re: [TowerTalk] Antenna choices (score: 1): Author: "WK1W Ivan Shapiro" <WK1W@ivanshapiro.com>; Date: Fri, 25 Oct 2013 15:55:13 -0400; Someone wrote and K9YC quoted: I'd also look at the Force 12 antennas, none of which use traps, and which provide very good bang for the buck. The two that Ward and Steve measured were the best perfo; /archives//html/Towertalk/2013-10/msg00372.html (7,072 bytes)
3. [TowerTalk] Antenna choices (score: 1): Author: Mike Reublin NF4L <nf4l@comcast.net>; Date: Sat, 12 Apr 2014 18:48:29 -0400; R9 or AV-680? Why? 73, Mike NF4L _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contestin; /archives//html/Towertalk/2014-04/msg00242.html (6,391 bytes)
4. Re: [TowerTalk] Antenna choices (score: 1): Author: "Dino Darling" <dino@kx6d.com>; Date: Sat, 12 Apr 2014 17:13:41 -0700; Either! So you can radiate equally poor in all directions! Dino - KX6D R9 or AV-680? Why? 73, Mike NF4L _______________________________________________ _______________________________________________; /archives//html/Towertalk/2014-04/msg00245.html (7,135 bytes)
5. Re: [TowerTalk] Antenna choices (score: 1): Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>; Date: Sat, 12 Apr 2014 22:04:17 -0400; I can't speak directly for the R9 and AV680, but I can forthe R8 and AV640. I have both. The AV60 and R9 are much alike, but there are major differences. The AV640 uses stubs and capacity hats for tu; /archives//html/Towertalk/2014-04/msg00250.html (9,664 bytes)
6. [TowerTalk] antenna choices (score: 1): Author: Alfred Watson via TowerTalk <towertalk@contesting.com>; Date: Mon, 6 Apr 2015 15:10:40 -0400; I am thinking about a newer (maybe better) HF antenna. I have now a T-11 LPA from Tennadyne. I've always had good results with hy gain and never owned an opti beam. Any thoughts on a TH-11 vs an Opti; /archives//html/Towertalk/2015-04/msg00038.html (7,409 bytes)
7. Re: [TowerTalk] antenna choices (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Mon, 06 Apr 2015 12:46:36 -0700; I've always had good results with hy gain and never owned an opti beam. Any thoughts on a TH-11 vs an Opti beam OB 9-5. Both offer the same bands. 10,15,20,17,12. I have a 3-el SteppIR (the original); /archives//html/Towertalk/2015-04/msg00039.html (8,338 bytes)
8. Re: [TowerTalk] antenna choices (score: 1): Author: "john@kk9a.com" <john@kk9a.com>; Date: Mon, 6 Apr 2015 16:30:46 -0500; There are lot of antennas that will cover these bands so I am sure you will get many opinions. Of the two choices that you mentioned, if price was not a factor I would definitely pick the OptiBeam. I; /archives//html/Towertalk/2015-04/msg00040.html (7,473 bytes)
9. Re: [TowerTalk] antenna choices (score: 1): Author: "Roger (K8RI) on TT" <K8RI-on-TowerTalk@tm.net>; Date: Mon, 06 Apr 2015 18:51:06 -0400; I've always had good results with hy gain and never owned an opti beam. Any thoughts on a TH-11 vs an Opti beam OB 9-5. Both offer the same bands. 10,15,20,17,12. I have a 3-el SteppIR (the original); /archives//html/Towertalk/2015-04/msg00041.html (10,001 bytes)
10. Re: [TowerTalk] antenna choices (score: 1): Author: Patrick Greenlee <patrick_g@windstream.net>; Date: Mon, 06 Apr 2015 18:03:20 -0500; Don't avoid the SteppIR, consider the NN4ZZ tilt plate so all antenna assembly and maintenance can be conducted with your boots on the ground. Requires a tiltable tower but is safer than climbing or; /archives//html/Towertalk/2015-04/msg00042.html (10,568 bytes)
11. Re: [TowerTalk] antenna choices (score: 1): Author: Todd Coulter <coulter@bellsouth.net>; Date: Mon, 6 Apr 2015 18:25:26 -0700; Al, I have owned an Optibeam for roughly the last 5 years. It is the best built antenna that I have ever owned or seen. The mechanical engineering is second to none, as is the customer service. It al; /archives//html/Towertalk/2015-04/msg00043.html (9,164 bytes)
12. Re: [TowerTalk] antenna choices (score: 1): Author: Matthew King - KK4CPS <KK4CPS@gmail.com>; Date: Mon, 6 Apr 2015 23:14:44 -0400; Wow - and here I was looking forward to getting the T11! What sort of tower do you have, if you don't mind my asking? What are you unhappy with about the T11, and what are you looking to improve? Tha; /archives//html/Towertalk/2015-04/msg00044.html (8,818 bytes)
13. Re: [TowerTalk] antenna choices (score: 1): Author: Jim Brown <jim@audiosystemsgroup.com>; Date: Mon, 06 Apr 2015 22:47:01 -0700; Yes, that's the real question. Part of that is to know the forward gain of the T11. I see a single number for gain for an antenna that covers two octaves of frequency. Somehow I don't trust that numb; /archives//html/Towertalk/2015-04/msg00046.html (10,953 bytes)
14. [TowerTalk] antenna choices (score: 1): Author: "Jim Thomson" <jim.thom@telus.net>; Date: Tue, 7 Apr 2015 03:32:49 -0700; Now, look at the Optibeam numbers and description. This is a 2-el Yagi on all bands except 10M and maybe 12M. The gain numbers are 4.3-4.5 dBd which translate to 6.45 - 6.65 dBi (free space). That's; /archives//html/Towertalk/2015-04/msg00047.html (11,383 bytes)
15. Re: [TowerTalk] antenna choices (score: 1): Author: "john@kk9a.com" <john@kk9a.com>; Date: Tue, 7 Apr 2015 06:42:52 -0500; I am a big fan of OptiBeam antennas however these are two big issues that likely hurt their business in North America. Besides the air cargo fees, in the U.S. you have to clear customs. This has beco; /archives//html/Towertalk/2015-04/msg00048.html (9,724 bytes)
16. Re: [TowerTalk] antenna choices (score: 1): Author: "john@kk9a.com" <john@kk9a.com>; Date: Tue, 7 Apr 2015 06:49:25 -0500; OptiBeam designs their antennas using EZNEC+ and I would believe their gain figures. A Force12 C3 is also a great performer with only two elements per band so I am guessing that the other band elemen; /archives//html/Towertalk/2015-04/msg00049.html (8,660 bytes)
17. Re: [TowerTalk] Antenna choices (score: 1): Author: "jcjacobsen@q.com" <jcjacobsen@q.com>; Date: Tue, 7 Apr 2015 08:43:07 -0400 (EDT); Interesting topic. Jim was questioning the data on the Tennadynne LPDA products. <snip> Yes, that's the real question. Part of that is to know the forward gain of the T11. I see a single number for g; /archives//html/Towertalk/2015-04/msg00050.html (8,993 bytes)
18. Re: [TowerTalk] antenna choices (score: 1): Author: Chris <EZRhino@fastmovers.biz>; Date: Tue, 7 Apr 2015 08:00:44 -0600; Jim typed what I was thinking. What is it that is gained by going to that particular Optibeam? You will lose 6m, as the T11 covers 6m. I don't think there is going to be a gain improvement since that; /archives//html/Towertalk/2015-04/msg00051.html (13,365 bytes)
19. Re: [TowerTalk] Antenna choices (score: 1): Author: "StellarCAT" <rxdesign@ssvecnet.com>; Date: Tue, 7 Apr 2015 09:18:07 -0500; At the very bottom of the page for Original Tennadynne products is this statement: " *These gain figures are fictitious, but since other antenna manufacturers tend to use them to manipulate things in; /archives//html/Towertalk/2015-04/msg00052.html (9,113 bytes)
20. Re: [TowerTalk] Antenna choices (score: 1): Author: "Paul Christensen" <w9ac@arrl.net>; Date: Tue, 7 Apr 2015 10:23:33 -0400; The gain of a LPDA should be mostly consistent across its designed frequency of operation. If it's not, then there's a design error. So, I would expect one gain figure +/- some amount of variation in; /archives//html/Towertalk/2015-04/msg00053.html (10,961 bytes)

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