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Total 323 documents matching your query.

201. [TowerTalk] micro-reflectors (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Thu, 3 May 2001 14:16:33 -0400
I also have the problem of many emails to deal with, both on the reflectors, and at work. The typical load at work can be anywhere from a couple dozen to over 400. A lot of those are noise, some are
/archives//html/Towertalk/2001-05/msg00081.html (10,876 bytes)

202. [TowerTalk] AC power (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sat, 12 May 2001 13:04:42 -0400
For a LONG run to a tower (like my almost 300') I will bury a length of UG 10/2 w/g (in the same trench) out to the tower. I will terminate it out there in a box with a ground fault socket/breaker, b
/archives//html/Towertalk/2001-05/msg00275.html (10,818 bytes)

203. [TowerTalk] Vertical over 4 el yagi (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 14 May 2001 13:07:54 -0400
There are two situations where a horizontal 1/2 wave and a vertical 1/2 wave couple minimally: a) where the center of the vertical is in the line which is the extension of the line of the horizontal
/archives//html/Towertalk/2001-05/msg00307.html (10,672 bytes)

204. [TowerTalk] DC isolated UNUN (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 14 May 2001 14:39:20 -0400
You mean DC transparent UNUNs, as in the kind with a capacitor from the bottom of the UNUN winding to ground to keep from shorting out the DC, and the control relay current passes through the UNUN wi
/archives//html/Towertalk/2001-05/msg00310.html (9,425 bytes)

205. [TowerTalk] Disclaimer........ why art thou? (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sun, 20 May 2001 02:01:04 -0400
Perhaps you've never received a nasty email accusing you of getting paid by a manufacturer for your recommendations. Disclaimers don't bother me. Disclaim away. Everyone has a delete key, and they ha
/archives//html/Towertalk/2001-05/msg00410.html (12,801 bytes)

206. [TowerTalk] Angle of maximum wind force on Yagis (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 21 May 2001 01:10:56 -0400
I'm not at all sure that Cos Theta is a proper formula for the diminishment of drag as the shapes are turned away from full head on. It does describe the diminishment of viewed area from a point dist
/archives//html/Towertalk/2001-05/msg00422.html (14,860 bytes)

207. [TowerTalk] Angle of maximum wind force on Yagis (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 21 May 2001 12:31:04 -0400
For the boom, it would. But for the elements of something like a C31, which flexes a good bit, particularly the 20 meter elements, the computation would be unnecessarily harsh. The figures would come
/archives//html/Towertalk/2001-05/msg00437.html (19,498 bytes)

208. [TowerTalk] Angle of maximum wind force on Yagis (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 21 May 2001 12:50:16 -0400
With both dipoles in the wind, equally sharing, the VISIBLE cross-section offered the wind is at 1.4. HOWEVER, note that the wind does NOT flow across the elements at right angles, but at a 45 degree
/archives//html/Towertalk/2001-05/msg00438.html (14,163 bytes)

209. [TowerTalk] Rerouting: Minooka or Battlecreek Vertical (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Tue, 29 May 2001 22:48:38 -0400
Picked this up as a bounce on another reflector and redirected it. Please reply to yy178@fen-net.de - - . . . . . . - - . . . . - - . . - . . 73, Guy k2av@contesting.com Apex, NC, USA -- Hi folks, we
/archives//html/Towertalk/2001-05/msg00620.html (7,788 bytes)

210. [TowerTalk] Connectors (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Tue, 3 Apr 2001 15:21:53 -0400
With 1500 watts passing through an N connector, a flat 50 ohm load gives roughly 275 volts and 5.5 amps. A two to one SWR could raise the voltage to roughly 400 volts or the current to roughly 8 amps
/archives//html/Towertalk/2001-04/msg00066.html (10,525 bytes)

211. [TowerTalk] Connectors (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Wed, 4 Apr 2001 00:24:07 -0400
I hope readers understand in my prior post that I'm not real happy with 16 amps or 800 volts (rms) on an N connector. In my mind I'm considering how legal 60 Hz connectors look for those kinds of num
/archives//html/Towertalk/2001-04/msg00075.html (9,825 bytes)

212. [TowerTalk] C31XR / CC 402CD Question (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sun, 22 Apr 2001 23:05:42 -0400
The interaction mentioned affects ANY 15 meter beam, be it monobander, tribander, 5-bander, Force 12, Cushcraft, whatever brand.. The problem relates to whether or not the 40 meter beam has secondary
/archives//html/Towertalk/2001-04/msg00463.html (10,842 bytes)

213. [TowerTalk] C31XR / CC 402CD Question (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 23 Apr 2001 10:02:08 -0400
You might think a little about it. If it affects one fifteen meter beam in-line, it will affect any because the secondary resonance effect is on the forty meter beam, not the 15 meter beam. Also plea
/archives//html/Towertalk/2001-04/msg00472.html (14,608 bytes)

214. [TowerTalk] C31XR / CC 402CD Question (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Tue, 24 Apr 2001 12:47:20 -0400
As part of a continuing thread off-reflector with N4KG, I did some modeling, responding to a question about a 3/2 wave mode antenna and the probability of a six point pattern, as would be obtained us
/archives//html/Towertalk/2001-04/msg00521.html (11,983 bytes)

215. [TowerTalk] near field pattern on 6M? (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 30 Apr 2001 16:46:13 -0400
You are far away enough from the antenna that regular azimuthal directivity applies. To: <towertalk@contesting.com> List Sponsor: ChampionRadio.com - Trylon self-supporting towers, safety equipment,
/archives//html/Towertalk/2001-04/msg00642.html (9,803 bytes)

216. [TowerTalk] Coax Rating (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Thu, 1 Mar 2001 16:42:18 -0500
Mauri's description sounds like RG6, the 75 ohm cable-TV stuff, or something made like it. However, Mauri, if you have some of the cable you described and can supply the Manufacturer and the type fro
/archives//html/Towertalk/2001-03/msg00037.html (15,953 bytes)

217. Fw: [TowerTalk] Tower sled systems????????????? (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Thu, 8 Mar 2001 17:32:24 -0500
Homemade towers belongs in the same category as homemade airplanes. Since failure can cause loss of life, those who are making such need to own professional skills the same as those who design and ma
/archives//html/Towertalk/2001-03/msg00156.html (10,951 bytes)

218. Fw: [TowerTalk] Tower sled systems????????????? (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Thu, 8 Mar 2001 23:36:28 -0500
Not to say that people DON'T build their own, reread my post. I know someone who built an airplane. I also know someone who built several homemade, home-designed towers in excess of 100 feet. They BO
/archives//html/Towertalk/2001-03/msg00163.html (14,876 bytes)

219. [TowerTalk] Everything is too dangerous (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Fri, 9 Mar 2001 15:17:59 -0500
NO, everything is NOT too dangerous. A certain FEW things ARE dangerous and should be undertaken with caution and some D** good professional engineering in hand. He who can't tell the difference betw
/archives//html/Towertalk/2001-03/msg00184.html (13,258 bytes)

220. Fwd: Re: [TowerTalk] HB towers (score: 1)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sat, 10 Mar 2001 13:29:31 -0500
The biggest risk to that repaired tower in my mind is not the neighbor's kid, but the increased chance of collapse in a windstorm (and loosing use of antenna and possibly part of house until all is f
/archives//html/Towertalk/2001-03/msg00199.html (15,687 bytes)


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