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Total 529 documents matching your query.

1. [TowerTalk] Source of 75 ohm twinlead? (score: 275)
Author: olinger@bellsouth.net (Guy Olinger, K2AV)
Date: Tue Jun 17 19:52:18 2003
We're up to three different confirmed sources now... Have heard of the lamp cord trick. This will be used on 15 meters, so the dielectric is really important. I used 75 TL some years ago and I rememb
/archives//html/Towertalk/2003-06/msg00233.html (13,513 bytes)

2. [TowerTalk] Source of 75 ohm twinlead? (score: 267)
Author: olinger@bellsouth.net (Guy Olinger, K2AV)
Date: Tue Jun 17 17:46:15 2003
Just called VGE. They have *72* ohm twinlead, and the conductors are #13. It's transmitting stuff. Thanks for the help. Guy K2AV To: <towertalk@contesting.com> To: <towertalk@contesting.com>
/archives//html/Towertalk/2003-06/msg00227.html (9,492 bytes)

3. [TowerTalk] Guyed self-supporters (was "Concrete suggestions") (score: 267)
Author: olinger@bellsouth.net (Guy Olinger, K2AV)
Date: Sat Apr 19 12:30:59 2003
Taking one's breath away is a measure of psychological effect. Inches is the physical measure and can be seen with a transit on the ground. These are not self-contradictory statements. The movement o
/archives//html/Towertalk/2003-04/msg00364.html (18,006 bytes)

4. [TowerTalk] C-3S and TS850S ant tuner (score: 267)
Author: Guy Olinger, K2AV" <k2av@qsl.net (Guy Olinger, K2AV)
Date: Mon, 11 Jan 1999 23:07:23 -0500
Well..... Now that I have gone looking, I see the web page is revised. Among other things, the C3SS and C31XR are down with the rest of the C3/4 specs, and all mention of the reverse is gone. I have
/archives//html/Towertalk/1999-01/msg00193.html (11,356 bytes)

5. [TowerTalk] Re: Tower Faraday shield? (score: 260)
Author: olinger@bellsouth.net (Guy Olinger, K2AV)
Date: Sun Jun 1 14:42:03 2003
Since so much of lightning is pulse related, and I don't have a verifiable analytical device to measure and take that into account, I can't really say that it does or doesn't work and why. However, i
/archives//html/Towertalk/2003-06/msg00007.html (10,976 bytes)

6. [TowerTalk] Effect of not isolating shields at center switch of lazy vee, was"feeding one antenna" (score: 260)
Author: olinger@bellsouth.net (Guy Olinger, K2AV)
Date: Sat May 31 12:16:42 2003
Faraday shield does not apply to insulated wires (including coax shields) run for extents outside the cage (tower) as well. Models of my entire tower (all the members) show current on the interior. S
/archives//html/Towertalk/2003-05/msg00425.html (11,450 bytes)

7. [TowerTalk] Installing Connectors on LMR 500 (score: 260)
Author: Guy Olinger, K2AV" <k2av@qsl.net (Guy Olinger, K2AV)
Date: Sat, 2 Oct 1999 01:37:15 -0700
Actually it took quite a while to run down the instructions, was hard to figure out where to go from their home page. To save the rest a bit of trouble, go see ... and print. http://www.timesmicrowav
/archives//html/Towertalk/1999-10/msg00013.html (10,380 bytes)

8. Re: [TowerTalk] Take off angles, VOACAP, etcf. (score: 260)
Author: "Guy Olinger, K2AV" <olinger@bellsouth.net>
Date: Sun, 17 Oct 2004 02:26:51 -0400
That's the d*mned if you do, d*mned if you don't issue IF you only publish one kind of measurements. If you don't do isotropic figures, then you can't adjust for your own antennas. But you ALSO need
/archives//html/Towertalk/2004-10/msg00439.html (11,265 bytes)

9. Re: [TowerTalk] Take off angles, VOACAP, etcf. (score: 260)
Author: "Guy Olinger, K2AV" <olinger@bellsouth.net>
Date: Sun, 17 Oct 2004 11:11:46 -0400
In terms of the simple math and numbers, you are correct. But to USE the numbers to make a construction decision is where the other considerations come in. If you use VOACAP running under "poor" stat
/archives//html/Towertalk/2004-10/msg00450.html (10,715 bytes)

10. [TowerTalk] Common-mode current on feedline (score: 252)
Author: olinger@bellsouth.net (Guy Olinger, K2AV)
Date: Thu Jun 26 12:23:10 2003
Personally, in my private cogitation space, where I don't have to prove anything to anybody, I've gotten a good bit disbelieving of the various mental simplifications of ground. Not at all convinced
/archives//html/Towertalk/2003-06/msg00490.html (10,019 bytes)

11. [TowerTalk] Guyed self-supporters (was "Concrete suggestions") (score: 252)
Author: olinger@bellsouth.net (Guy Olinger, K2AV)
Date: Fri Apr 18 21:02:54 2003
No, EHS guys are not stretching to give this effect. The guys are not tightened to make them straight, they are tightened to present a certain designed tension on the tower. If you sight down them, y
/archives//html/Towertalk/2003-04/msg00352.html (11,492 bytes)

12. [TowerTalk] Side mount on Trylon Tower (score: 252)
Author: olinger@bellsouth.net (Guy Olinger, K2AV)
Date: Mon Apr 21 17:56:49 2003
Need to remember that the Trylon corners are not exactly vertical (go in inch and a half each section). Also the vertical pieces are 120 degree rounded corner channel material, not tubes as on Rohn 2
/archives//html/Towertalk/2003-04/msg00398.html (9,716 bytes)

13. [TowerTalk] stack phasing questions (score: 252)
Author: Guy Olinger, K2AV" <k2av@qsl.net (Guy Olinger, K2AV)
Date: Sun, 1 Nov 1998 19:32:35 -0500
Hi Will, The problem, of course is that the connect is "out there" on the boom and will require bringing it in to test it by switching the connection. Easiest way to try a phase flip is to make a pie
/archives//html/Towertalk/1998-11/msg00018.html (9,968 bytes)

14. No subject (score: 252)
Author: Guy Olinger, K2AV" <k2av@qsl.net (Guy Olinger, K2AV)
Date: Thu, 15 Oct 1998 22:53:47 -0400
... very careful long statement on problems modeling LL antennas ... Thank you for the post. So, for the casual user, the solutions are out-of-reach. Let it suffice to say that it takes a *very* well
/archives//html/Towertalk/1998-10/msg00484.html (8,032 bytes)

15. [TowerTalk] 4 Elephant antenna (score: 252)
Author: Guy Olinger, K2AV" <k2av@qsl.net (Guy Olinger, K2AV)
Date: Sat, 17 Oct 1998 22:39:27 -0400
This is so he can work a 75m mobile on the other side of the Sierra's, qrp, at high noon, right? -- Guy L. Olinger k2av@qsl.net Apex, NC, USA -- FAQ on WWW: http://www.contesting.com/towertalkfaq.htm
/archives//html/Towertalk/1998-10/msg00561.html (7,745 bytes)

16. [TowerTalk] A Question of GAIN (score: 252)
Author: Guy Olinger, K2AV" <k2av@qsl.net (Guy Olinger, K2AV)
Date: Mon, 19 Oct 1998 12:53:13 -0400
Trying hard to keep this apples and oranges and not mix the two. 1) The change in maximum peak gain (peak gain forward counting peak at *any* angle of takeoff on *either* beam or combination) is goin
/archives//html/Towertalk/1998-10/msg00654.html (11,534 bytes)

17. No subject (score: 252)
Author: Guy Olinger, K2AV" <k2av@qsl.net (Guy Olinger, K2AV)
Date: Mon, 19 Oct 1998 22:54:26 -0400
Hi again, I accidentally sent N7CL an unfinished version of this. Comments interspersed below. That assumes a broad front largely invariant signal being received. If it is possible on H.F. to have mu
/archives//html/Towertalk/1998-10/msg00683.html (13,524 bytes)

18. [TowerTalk] A Question of GAIN (score: 252)
Author: Guy Olinger, K2AV" <k2av@qsl.net (Guy Olinger, K2AV)
Date: Mon, 19 Oct 1998 23:02:52 -0400
Hi again, I accidentally sent N7CL an unfinished version of this. Comments interspersed below. That assumes a broad front largely invariant signal being received. If it is possible on H.F. to have mu
/archives//html/Towertalk/1998-10/msg00685.html (15,549 bytes)

19. [TowerTalk] Force 12 C-31XR (score: 252)
Author: Guy Olinger, K2AV" <k2av@qsl.net (Guy Olinger, K2AV)
Date: Wed, 28 Oct 1998 22:17:56 -0500
Hi, On my C31XR there is 29.5 inches clearance (not center-to-center) between the forward element of the 10 m feed cell and the 1st 15m director. The center of this space is about 12 inches forward o
/archives//html/Towertalk/1998-10/msg00966.html (9,399 bytes)

20. [TowerTalk] refurbish a Thrust bearing ? (score: 252)
Author: Guy Olinger, K2AV" <k2av@qsl.net (Guy Olinger, K2AV)
Date: Sun, 13 Sep 1998 23:24:05 -0400
There are some complications if you do this, especially if your thrust bearings are fairly tight (very little side-to-side play). *Without* the lower thrust bearing, and the rotator down a ways from
/archives//html/Towertalk/1998-09/msg00348.html (10,484 bytes)


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