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Total 31 documents matching your query.

1. [TowerTalk] Stacking question (score: 1): Author: w7why@harborside.com (Tom Osborne); Date: Thu, 11 Nov 1999 21:31:40 -0800; Hi Gang I've been wondering about some things. Say 2 3 element monobanders are stacked, the gain goes up 3 db (at least that's what I think). If there is 100 watts going to the antennas, when it reac; /archives//html/Towertalk/1999-11/msg00212.html (7,885 bytes)
2. [TowerTalk] Stacking question (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Thu, 11 Nov 1999 22:29:53 +0000; No, the ERP is doubled: same total power radiated * twice the gain (3dB) = twice the ERP. What happens is that the voltages received from each antenna add in phase (in the optimum direction) which ac; /archives//html/Towertalk/1999-11/msg00214.html (8,168 bytes)
3. [TowerTalk] Stacking question (score: 1): Author: bogus@does.not.exist.com (); Date: Sun, 22 Nov 1998 10:36:03 EST; Greetings, TowerTalkians -- Let me pose a general hypothetical question; I'm going to ignore takeoff angles for the moment (I don't know if this is possible with this question - sorry). Suppose I had; /archives//html/Towertalk/1998-11/msg00629.html (8,117 bytes)
4. [TowerTalk] Stacking question (score: 1): Author: jlangdon@outer.net (John Langdon); Date: Sun, 22 Nov 1998 18:59:32 -0600; I have never seen a compromise spacing that worked across such a wide frequency range. There are pattern problems even going from 10 to 20 meters, much less all the way to 40. As you know, I interlac; /archives//html/Towertalk/1998-11/msg00634.html (9,111 bytes)
5. [TowerTalk] Stacking question (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Mon, 23 Nov 1998 14:08:12 -0700; Steve, I don't know how you'd do it mechanically. But, as long as we're speaking hypothetically, you could mount the antennas so that the spacing increased from front to back. Some of the wire zig-za; /archives//html/Towertalk/1998-11/msg00650.html (8,968 bytes)
6. [TowerTalk] Stacking question (score: 1): Author: n4kg@juno.com (T A RUSSELL); Date: Tue, 24 Nov 1998 14:51:29 -0600; Re: Sloping booms in stacked LP antenna systems This technique was used at least as far back as the 1960's. Such antennas were in use at the Collins Radio Company Headquarters station in Cedar Rapids; /archives//html/Towertalk/1998-11/msg00670.html (11,196 bytes)
7. [TowerTalk] Stacking question (score: 1): Author: n7cl@mmsi.com (Eric Gustafson); Date: Wed, 25 Nov 1998 13:07:32 -0700; Hi Tom, I haven't investigated this yet. But I'll bet that the effect is very minimal given the H-Plane directivity (or lack of it) of what is essentially a short boom 3 element yagi. Do you have any; /archives//html/Towertalk/1998-11/msg00686.html (11,486 bytes)
8. [TowerTalk] Stacking question (score: 1): Author: w2vjn@rosenet.net (George Cutsogeorge); Date: Wed, 25 Nov 1998 20:45:13 -0800; About 1965, long before we had computer modelling, I got to thinking about tilting the boom of a Yagi to lower or raise the elevation angle of radiation. This would be really neat for switching from; /archives//html/Towertalk/1998-11/msg00687.html (7,774 bytes)
9. [TowerTalk] Stacking question (score: 1): Author: softwave@ameritech.net (Joseph & Grace Holstein); Date: Thu, 26 Nov 1998 09:42:56 -0500; That's good news; install an antenna for DX and then tilt when needing a higher angle of radiation. Thought about the same but did not realize tilting only increased the angle. I ran into extremely i; /archives//html/Towertalk/1998-11/msg00694.html (8,062 bytes)
10. [TowerTalk] Stacking question (score: 1): Author: johan.vdv@tornado.be (Johan Van de Velde,ON4ANT); Date: Wed, 23 Jul 1997 13:32:59 +0200; Hi there What would You consider to be a good stacking distance between a KT34XA (10/15/20) and a 3el 40m ? How should they be mounted, same direction or 90 degrees offset Any feedback is welcome.. J; /archives//html/Towertalk/1997-07/msg00702.html (6,925 bytes)
11. [TowerTalk] Stacking question (score: 1): Author: KJ6Y@aol.com (KJ6Y@aol.com); Date: Wed, 23 Jul 1997 18:57:53 -0400 (EDT); << Hi there What would You consider to be a good stacking distance between a KT34XA (10/15/20) and a 3el 40m ? How should they be mounted, same direction or 90 degrees offset Any feedback is welcome.; /archives//html/Towertalk/1997-07/msg00707.html (7,610 bytes)
12. [TowerTalk] Stacking question (score: 1): Author: "Gian Luca Salvia" <glsalvia@capri.it>; Date: Sat, 29 May 2004 19:15:39 +0200; Hi all, I recently purchased a 50 feet Prosistel tower on which I would like to stack 2x4 element yagi for 10 meters and my old 2 elements homebrew yagi for 40 meters 10 meters yagis have a 6 meters; /archives//html/Towertalk/2004-05/msg00602.html (6,950 bytes)
13. [TowerTalk] Stacking question (score: 1): Author: john nistico <electric911inc@hotmail.com>; Date: Tue, 9 Aug 2016 01:02:32 +0000; I ordered 4 150 foot towers and am going to place the antenna order in a few weeks. My question is I have read so much about stacking space 5/8 .64 3/4 1/2 wave. Where do I get the most bang for my b; /archives//html/Towertalk/2016-08/msg00093.html (6,765 bytes)
14. Re: [TowerTalk] Stacking question (score: 1): Author: Grant Saviers <grants2@pacbell.net>; Date: Mon, 8 Aug 2016 19:04:20 -0700; If the top antenna is at 2 or 3 wavelengths, there isn't much more to be gained with height, IMO. My 2 high modeling put the lower beam a little less than 1 wavelength below top and I interlaced the; /archives//html/Towertalk/2016-08/msg00094.html (9,832 bytes)
15. Re: [TowerTalk] Stacking question (score: 1): Author: "john@kk9a.com" <john@kk9a.com>; Date: Tue, 9 Aug 2016 06:57:06 -0400; There is a lot of information about stacking in books such as W2PV's Yagi Antenna Design. John KK9A I ordered 4 150 foot towers and am going to place the antenna order in a few weeks. My question is; /archives//html/Towertalk/2016-08/msg00096.html (7,407 bytes)
16. Re: [TowerTalk] Stacking question (score: 1): Author: "StellarCAT" <rxdesign@ssvecnet.com>; Date: Tue, 9 Aug 2016 08:00:21 -0400; Also I'd suggest that you use HFTA with your terrain to see what is best for you. You might find that what is nominally high for others is far too high for you! I've stuck with the M2 recommendations; /archives//html/Towertalk/2016-08/msg00097.html (10,834 bytes)
17. Re: [TowerTalk] Stacking question (score: 1): Author: "john@kk9a.com" <john@kk9a.com>; Date: Tue, 9 Aug 2016 10:03:31 -0400; I have no HFTA experience however after looking at the stacking distances from people that have used it I would not recommend it. It puts the beams way too close together in my opinion. John KK9A Als; /archives//html/Towertalk/2016-08/msg00100.html (8,209 bytes)
18. Re: [TowerTalk] Stacking question (score: 1): Author: "Richard (Rick) Karlquist" <richard@karlquist.com>; Date: Tue, 9 Aug 2016 08:21:10 -0700; John KK9A high for you! I've stuck with the M2 recommendations - and have in modeling confirmed they work well. That is 60' on 20 and 45' on 15. The Gary K9RX According to my modelling, 60' on 20 and; /archives//html/Towertalk/2016-08/msg00101.html (8,628 bytes)
19. Re: [TowerTalk] Stacking question (score: 1): Author: "StellarCAT" <rxdesign@ssvecnet.com>; Date: Tue, 9 Aug 2016 11:31:54 -0400; You misunderstand the recommendation - it is not to use it to determine stacking distances! It is used to determine optimum heights based on local terrain. So one has to first establish what is a goo; /archives//html/Towertalk/2016-08/msg00103.html (9,407 bytes)
20. Re: [TowerTalk] Stacking question (score: 1): Author: "StellarCAT" <rxdesign@ssvecnet.com>; Date: Tue, 9 Aug 2016 11:38:52 -0400; These values are what M2 recommends - I assume based on their modeling results AND they are based on my own EZNEC modeling results. They work well with side and back lobes and achieving a great - wel; /archives//html/Towertalk/2016-08/msg00104.html (9,086 bytes)

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