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Total 16 documents matching your query.

1. [TowerTalk] Stacking Distances (score: 1): Author: w9ac@arrl.net (Paul Christensen, Esq.); Date: Thu May 22 08:51:45 2003; What is the most common stacking distance for two Yagi arrays currently in use at the premier contest stations? Full-wave spacing would produce the most forward gain, but I continue to see references; /archives//html/Towertalk/2003-05/msg00309.html (7,012 bytes)
2. [TowerTalk] Stacking Distances (score: 1): Author: n4zr@contesting.com (Pete Smith); Date: Thu May 22 09:17:57 2003; Here's a table of gain, take-off angle and F/B versus stacking distance for 6-element OWA 20M yagis, as computed by NEC-2. In all cases, I used the 1X/2X rule -- a classic choice for cancellation of; /archives//html/Towertalk/2003-05/msg00310.html (8,339 bytes)
3. [TowerTalk] Stacking Distances (score: 1): Author: tonno.vahk@mail.ee (Tonno Vahk); Date: Thu May 22 09:50:49 2003; I am a true advocate of 0.5 wl stacking in most of the practical situations. In real life the limiting factor for you is usually the height of the tower or the height of the upper antenna. So when we; /archives//html/Towertalk/2003-05/msg00311.html (10,965 bytes)
4. [TowerTalk] Stacking Distances (score: 1): Author: btippett@alum.mit.edu (Bill Tippett); Date: Fri May 23 09:18:18 2003; Freq Ht R X SWR Gain TOA F/R 14.200 40 26.82 1.64 1.867 16.34 14 20.74 14.200 45 26.75 2.04 1.873 16.73 12 20.01 14.200 50 27.71 2.40 1.810 16.99 11 18.76 14.200 55 28.84 0.91 1.735 17.25 10 16.32 14; /archives//html/Towertalk/2003-05/msg00339.html (8,073 bytes)
5. [TowerTalk] stacking distances (score: 1): Author: NQ4I@compuserve.com (Rick Dougherty); Date: Fri, 4 Jan 2002 14:37:37 -0500; Time for another topic...I was playing with YT the past few days with the updated files (tnx N4ZR and W4DD) and I happened on the following...a 3 high stack with 0.5 wavelength stacking distances had; /archives//html/Towertalk/2002-01/msg00146.html (8,154 bytes)
6. [TowerTalk] stacking distances (score: 1): Author: Tonno Vahk" <tonno.vahk@mail.ee (Tonno Vahk); Date: Mon, 7 Jan 2002 11:50:09 +0200; Nice to see you coming up with that, Rick, That's exactly my observation that I described in my post a half a year ago: http://lists.contesting.com/_towertalk/200107/msg00540.html check out the threa; /archives//html/Towertalk/2002-01/msg00187.html (10,424 bytes)
7. [TowerTalk] stacking distances (score: 1): Author: k6ll@juno.com (David O Hachadorian); Date: Mon, 7 Jan 2002 17:27:25 +0000; I missed this posting the other day. Just saw it. You have to be careful with YT, using stacks with close spacing. If you plot a stack of two antennas even one foot apart, YT will still show a 3 dB g; /archives//html/Towertalk/2002-01/msg00189.html (10,790 bytes)
8. [TowerTalk] stacking distances (score: 1): Author: W8JI@contesting.com (Tom Rauch); Date: Tue, 8 Jan 2002 01:23:23 -0500; Very interesting. It is amazing what is in those manuals that I, like most people, never bother reading. Anyway, that's why I like the new Eznec with it's average gain! You can look to see if averag; /archives//html/Towertalk/2002-01/msg00191.html (9,010 bytes)
9. [TowerTalk] Stacking Distances (score: 1): Author: clive@gm3poi.prestel.co.uk (c penna); Date: Thu, 18 Nov 1999 15:44:02 -0000; Hi All, On one of my towers I have a 10ft stub mast on which I ideally would like to get three yagis separated for minimum interaction. The three antennas are 4el 15m, 4el 10m and 3el 6m. I can eithe; /archives//html/Towertalk/1999-11/msg00377.html (7,120 bytes)
10. [TowerTalk] Stacking Distances (score: 1): Author: k1vr@juno.com (Fred Hopengarten); Date: Mon, 28 Sep 1998 12:54:06 EDT; K1VR: My TH6/TH7 stack is at 97'/61'/31', with guy wire sets at 90'/60'/30'. When I had a two stack (97/61) performance was GREAT on 20 and OK to good on 15. It sucked on 10. The single TH7 at 36' be; /archives//html/Towertalk/1998-09/msg00722.html (10,688 bytes)
11. [TowerTalk] stacking distances (score: 1): Author: "Gregg Seidl" <k9kl@centurytel.net>; Date: Fri, 2 Jan 2009 15:31:12 -0600; What happens to an antennas pattern when you stack it at more then "best" spacing? I have been thinking about going to a 3 stack instead of a 2 stack of 6M-7JHV's. M2 says 25 feet is best but 30 feet; /archives//html/Towertalk/2009-01/msg00037.html (7,629 bytes)
12. Re: [TowerTalk] stacking distances (score: 1): Author: TexasRF@aol.com; Date: Fri, 2 Jan 2009 16:51:22 EST; In general, as the stacking distance exceeds optimum, the mail lobe beamwidth continues to deacrease. The gain does not increase as one might expect because the grating lobe amplitude increases and "; /archives//html/Towertalk/2009-01/msg00038.html (8,568 bytes)
13. Re: [TowerTalk] stacking distances (score: 1): Author: Robert Morris <robrk@nidhog.net>; Date: Fri, 02 Jan 2009 16:58:23 -0500; As Gerald says, get the books. It's not so many feet just because it's 6 meters. My feeble brain remembers them talking about wavelength and boom length. -- This message has been scanned for viruses; /archives//html/Towertalk/2009-01/msg00039.html (9,370 bytes)
14. Re: [TowerTalk] stacking distances (score: 1): Author: "Roger (K8RI)" <K8RI-on-TowerTalk@tm.net>; Date: Fri, 02 Jan 2009 17:14:13 -0500; Channel two isn't going away although they are playing musical channels with the stations.I'd have to look it up, but I believe there will still be 5 stations operating on channel two across the coun; /archives//html/Towertalk/2009-01/msg00040.html (8,627 bytes)
15. [TowerTalk] stacking distances (score: 1): Author: "Gregg Seidl" <k9kl@centurytel.net>; Date: Fri, 2 Jan 2009 21:09:18 -0600; Thanks for the help but something just doesn't seem right. I'm looking at M2's web page and I think they make some of the best antennas and are the most helpful folks around. However I look at the re; /archives//html/Towertalk/2009-01/msg00042.html (7,487 bytes)
16. Re: [TowerTalk] stacking distances (score: 1): Author: Steve Maki <StevesLists1@gmail.com>; Date: Sat, 03 Jan 2009 01:24:56 -0500; Looks like seven: Flagstaff AZ, Grand Junction CO, Bangor ME, North Platte NE, Las Vegas NV, Rapid City SD, and Jackson WY. Three of those markets had no Ch2 NTSC previously, so there are a total of; /archives//html/Towertalk/2009-01/msg00043.html (7,825 bytes)

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