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Total 290 documents matching your query.

161. Re: [TowerTalk] Does prevailing grounding scheme promote large ground loop (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Tue, 26 Jul 2016 10:17:28 -0700
" . . relatively lightning-free coastal Oregon . . ." Well, that bit of information is true (http://www.lightningmaps.org is a great site to monitor). One of the hams up in Lincoln City feeds into th
/archives//html/Towertalk/2016-07/msg00508.html (13,998 bytes)

162. [TowerTalk] HyGain TH7DX (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Wed, 3 Aug 2016 12:45:06 -0700
If this is NOT the appropriate site let me know. Ive some technical questions re this antenna I asked HyGain and the answers appear to be guesses. Since they did not design it but only manufacture an
/archives//html/Towertalk/2016-08/msg00032.html (6,967 bytes)

163. Re: [TowerTalk] Stacking question - another reality data point (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Tue, 9 Aug 2016 20:01:13 -0700
Tim, Awe inspiring. I can't begin to imagine the engineering effort that went into the design of the whole smoosh! Curious how the neighbors were dealt with when you started this effort back when. Wh
/archives//html/Towertalk/2016-08/msg00121.html (12,531 bytes)

164. Re: [TowerTalk] Weight on ends of a OCF diploe (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Thu, 11 Aug 2016 10:08:55 -0700
The long sash weights used in old windows work well and they are usually easy to obtain at renovation and rejuvenation stores, even saw some at a Habitat for Humanity outlet a couple months back. The
/archives//html/Towertalk/2016-08/msg00134.html (11,530 bytes)

165. [TowerTalk] Columbia Cable (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Sun, 14 Aug 2016 12:15:15 -0700
Looking for some info on a 125 foot length of coax Ive been given. I can only find one place on the cable where the silkscreen is readable. It reads Columbia ?011? Mini 8/U and is terminated with reg
/archives//html/Towertalk/2016-08/msg00196.html (7,234 bytes)

166. [TowerTalk] What Is This Antenna? (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Thu, 25 Aug 2016 09:38:58 -0700
The following is a note sent to the DX club I belong to but so far this antenna has NOT been identified. Thought some of the OTs here might have a larger knowledge base. Don W7WLL -- This was given t
/archives//html/Towertalk/2016-08/msg00293.html (8,270 bytes)

167. Re: [TowerTalk] Strength of installation raising cable for the LM470? (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Sun, 28 Aug 2016 08:49:18 -0700
The 1/4 inch 7x19 SS 304 cable breaking strength I bought for use is 6400 lbs vs 7000 for 1/4 inch 7x19 galvanized aircraft cable, more than ample for my need. I would not call that difference 'one h
/archives//html/Towertalk/2016-08/msg00318.html (11,835 bytes)

168. Re: [TowerTalk] Wind loading (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Tue, 30 Aug 2016 19:04:45 -0700
As Roger has pointed out, wind gradient is an important aspect in the design of any structure - tower or skyscraper. I host a wx station here which feeds into the NOAA system. Until recently I had an
/archives//html/Towertalk/2016-08/msg00390.html (14,455 bytes)

169. [TowerTalk] TH7 DXS (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Sun, 9 Oct 2016 22:37:45 -0700
In cleaning up some nasty corrosion on the 15M Refector traps and putting them back together I decided to look at the two DE traps as well. I notice the PNs are different for the Reflector from those
/archives//html/Towertalk/2016-10/msg00081.html (6,544 bytes)

170. Re: [TowerTalk] Information on Antenna (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Fri, 21 Oct 2016 16:42:07 -0700
I've a dismantled TET setting out back on some sawhorses that I've saved for something (have not figured out what yet) and the first two pictures of the antenna itself certainly to me looks like the
/archives//html/Towertalk/2016-10/msg00292.html (8,176 bytes)

171. [TowerTalk] Crowd sourcing ideas on making antennas look better (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Mon, 31 Oct 2016 22:46:39 -0700
Large test and instrument manufacturers using aluminum chassis construction, such as Tektronix and HP among others. including military equipment manufacturers, used chromate conversion coating (CCC)
/archives//html/Towertalk/2016-11/msg00005.html (8,158 bytes)

172. Re: [TowerTalk] Duo band 20/15 meter beam (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Mon, 7 Nov 2016 10:55:49 -0800
Would be interesting to know the answer to your remark, apparently they are selling enough that they continue to offer it in their catalog. I have two (one up and one down which I use for spare parts
/archives//html/Towertalk/2016-11/msg00120.html (15,341 bytes)

173. Re: [TowerTalk] UV and WX deterioration of THHN insulation, and effects (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Fri, 30 Dec 2016 20:04:59 -0800
While this topic was interesting, to start, I think I'll just stick with the tried and true of sticking aluminum and wire in the air the old fashioned way and working what I can. At my age I don't ha
/archives//html/Towertalk/2016-12/msg00377.html (9,702 bytes)

174. Re: [TowerTalk] Yagi Building Ideas (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Sun, 1 Jan 2017 22:34:32 -0800
Impressive, well done and tnx for sharing. Don W7WLL Here's a link to a talk that W6GJB gave at Pacificon this year about building a contesting trailer for Field Day and county expeditions for state
/archives//html/Towertalk/2017-01/msg00027.html (10,434 bytes)

175. Re: [TowerTalk] Dx Engineering 15 Meter Yagi (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Mon, 2 Jan 2017 13:34:36 -0800
DX Engineering, Inc. was involuntary dissolved on Aug 24, 1995. The principals were Lew Sayre, W7EW and Bill Sattler N0XX. Lew has an email address on QRZ, Bill does not. The original DX Engineering,
/archives//html/Towertalk/2017-01/msg00066.html (11,278 bytes)

176. Re: [TowerTalk] US Tower price increase (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Mon, 2 Jan 2017 15:05:08 -0800
And if the manufacturer is smart and hiring seasoned skilled workers, they are getting a decent wage, not a minimum wage. The labor is a key factor in cost. You can amortize the equipment but not the
/archives//html/Towertalk/2017-01/msg00075.html (15,030 bytes)

177. Re: [TowerTalk] LUSO Towers Link (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Tue, 3 Jan 2017 09:38:16 -0800
LUSO looks like they build one heck of a crankup. I was scared to look at prices. I am impressed though. Did notice something that intrigued me when looking at the 150 foot picture, something that I'
/archives//html/Towertalk/2017-01/msg00110.html (10,662 bytes)

178. [TowerTalk] US Tower Pricing (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Fri, 6 Jan 2017 15:21:04 -0800
Lets get some facts on the table re US Tower prices than maybe this thread can be closed or taken off-line. Dont worry about cost pricing, IFBs and all that. 1. US Tower is considered a Commercial Of
/archives//html/Towertalk/2017-01/msg00155.html (15,953 bytes)

179. [TowerTalk] Tri-Ex HS Series CrankUps (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Sun, 29 Jan 2017 21:19:30 -0800
Cleaning out some files and found the installation instruction package for the HS Series (HS-237, 354, 471, 588 and 6105). Includes everything pertinent to the tower, from the base to guying as well
/archives//html/Towertalk/2017-01/msg00501.html (6,898 bytes)

180. Re: [TowerTalk] Advice on tower restrictions possible new homepurchase (score: 1)
Author: "Don W7WLL" <w7wll@arrl.net>
Date: Mon, 6 Feb 2017 16:22:12 -0800
Correctomundo! This is from the City of Waldport Development Code a small (very small) city N of me. "Tower facilities are subject to the standards identified below. Requests for exceptions to the st
/archives//html/Towertalk/2017-02/msg00174.html (13,661 bytes)


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