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References: [ +from:markrob@mindspring.com: 391 ]

Total 391 documents matching your query.

261. Re: [TowerTalk] champion radio replacement clamp for orion 2800 (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Thu, 3 Mar 2011 17:48:25 -0500
I am using the Champion clamp and have had no problems with it. I noticed that the Champion u bolts were a little too short to put spring washers under the u-bolt nuts, so I used blue loctite to make
/archives//html/Towertalk/2011-03/msg00059.html (8,512 bytes)

262. Re: [TowerTalk] where to buy STAINLESS STEEL bolts, nuts, washers (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Mon, 7 Mar 2011 19:55:41 -0500
I find Fastenal pretty good for bulk ss hardware. They have a good web page Mark N1UK Hello, where is the best place to buy bolts, nuts, washers? I need more that 200 size ¼" for radials and mucho mo
/archives//html/Towertalk/2011-03/msg00103.html (7,881 bytes)

263. Re: [TowerTalk] When to RETIRE from climbing? (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Fri, 18 Mar 2011 19:01:16 -0400
I imagine that the weight of the machine is going to tear up your grass too. Something that a climber isn't going to do. Mark N1UK _______________________________________________ ____________________
/archives//html/Towertalk/2011-03/msg00245.html (10,546 bytes)

264. Re: [TowerTalk] When to RETIRE from climbing? (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Fri, 18 Mar 2011 20:51:55 -0400
Large yagis can be hoisted up with the gin pole and tower operator can wiggle the yagi around the guy wires, or a tram line can be set up and the yagi can be hoisted up in that manner. That was how t
/archives//html/Towertalk/2011-03/msg00247.html (10,172 bytes)

265. Re: [TowerTalk] Rohn 45 Bearing Plate (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Tue, 3 May 2011 17:52:37 -0400
The Rohn 45 bearing plate that Array Solutions sells can be inserted at the junction between tower sections and moved into position vertically. It can then be tapped/hammered horizontal using a rubbe
/archives//html/Towertalk/2011-05/msg00022.html (8,452 bytes)

266. Re: [TowerTalk] DIGGING A HOLE WITH A BACKHOE (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Sat, 7 May 2011 09:31:37 -0400
I called a guy in the morning, he was out that afternoon and dug three nearly perfect 4 x 6 by 4 foot deep holes for $150 and was gone in about an hour. Compare that to hiring a digger, getting it ho
/archives//html/Towertalk/2011-05/msg00080.html (18,499 bytes)

267. Re: [TowerTalk] DIGGING A HOLE WITH A BACKHOE (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Sat, 7 May 2011 10:47:52 -0400
Yes my operator digs footings for a living with his Bobcat. The holes that he dug were nearly perfect and the pile of excavated soil was placed just where I wanted it. Sure beats dragging a digger ho
/archives//html/Towertalk/2011-05/msg00083.html (22,936 bytes)

268. Re: [TowerTalk] Complex Guying Question (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Tue, 10 May 2011 21:51:06 -0400
Hi Steve, I read that if your guy anchors are out more than the prescribed min of 70% of the height then you can drop the 10% guy loading figure to around 8%, Would you care to comment on that? cheer
/archives//html/Towertalk/2011-05/msg00133.html (9,305 bytes)

269. Re: [TowerTalk] ground connection at tower base (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Thu, 12 May 2011 11:40:04 -0400
Good practice is to sandwich a strip of stainless steel between the galvanized tower leg and the copper. I applied a coating of Penetrox to the stainless steel. I bought my stainless steel on line. M
/archives//html/Towertalk/2011-05/msg00151.html (13,271 bytes)

270. Re: [TowerTalk] Vertical with 1 radial (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Thu, 12 May 2011 15:51:13 -0400
That is not a lot of gain.. What band where you thinking of using? That is a long horizontal wire to hold out and rotate for just 3dB I modeled a vertical with one resonant radial and yes it slewed t
/archives//html/Towertalk/2011-05/msg00160.html (9,264 bytes)

271. Re: [TowerTalk] 2 1/4" Galvanized U-bolts? (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Fri, 13 May 2011 18:28:01 -0400
Have you looked at the Fastenal catalog....on line Mark N1UK _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contestin
/archives//html/Towertalk/2011-05/msg00209.html (8,136 bytes)

272. Re: [TowerTalk] concrete bases for freestanding towers (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Sat, 14 May 2011 17:20:46 -0400
I guess his wall bracket wasn't very tough. Mine has five 6 foot long 5/8 threaded rods tied into the ceiling joists in the attic.........as well as 2 sets of guys..... Mark N1UK ____________________
/archives//html/Towertalk/2011-05/msg00239.html (20,247 bytes)

273. Re: [TowerTalk] concrete bases for freestanding towers (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Sat, 14 May 2011 22:03:25 -0400
I figure that the tower is holding up my wall........Rohn 45 bracketed and guyed Mark N1UK _______________________________________________ _______________________________________________ TowerTalk ma
/archives//html/Towertalk/2011-05/msg00263.html (9,086 bytes)

274. Re: [TowerTalk] Glen Martin Engineering Tower and Hazer (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Sun, 15 May 2011 10:21:09 -0400
What about a tilt over crankup tower with one of those tilting plates on the top. That was something that I was considering until the Rohn 45 came my way. Mark N1UK __________________________________
/archives//html/Towertalk/2011-05/msg00280.html (8,691 bytes)

275. Re: [TowerTalk] concrete bases for freestanding towers (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Mon, 16 May 2011 17:46:41 -0400
I wouldn't even want to climb 43 feet of unguyed Rohn 45 (53feet -10 feet). At 33 feet above the guy wires the thing is swinging around too much.for me Mark N1UK _____________________________________
/archives//html/Towertalk/2011-05/msg00310.html (10,256 bytes)

276. Re: [TowerTalk] Copper Pipe Ground Rods - Driving them in - How ? (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Wed, 25 May 2011 08:43:33 -0400
You can try hooking the pipe up to a water hose. The flowing water will soften and move the soil away as you push the pipe down into the ground.. I have read of this being done. Mark N1UK ___________
/archives//html/Towertalk/2011-05/msg00418.html (9,051 bytes)

277. Re: [TowerTalk] Copper Pipe Ground Rods - Driving them in - How ? (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Wed, 25 May 2011 13:21:59 -0400
Hi Steve, I think that he said that he is using silver solder....which is mainly copper, some silver and some self fluxing material. This is what I used but don't apply any heat to the tower leg. Cla
/archives//html/Towertalk/2011-05/msg00424.html (9,877 bytes)

278. Re: [TowerTalk] 6000 psi grout (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Wed, 25 May 2011 17:29:41 -0400
I will be interested to see what others have to say but maybe a 3:1 mortar mix would work. 6:1 is normal for brick work as you don't want the mortar to be harder than the brick but since this is bein
/archives//html/Towertalk/2011-05/msg00431.html (10,424 bytes)

279. [TowerTalk] OT: Shortwave Propagation (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Wed, 25 May 2011 17:32:29 -0400
This might be of interest. There are also some other interesting antenna articles to peruse. http://www.bbc.co.uk/rd/publications/bbc_monograph_43.shtml Mark N1UK ____________________________________
/archives//html/Towertalk/2011-05/msg00432.html (7,896 bytes)

280. Re: [TowerTalk] Copper ground rod driver (score: 1)
Author: "Mark Robinson" <markrob@mindspring.com>
Date: Wed, 25 May 2011 19:26:54 -0400
Yes I tried that fence post tool but I preferred to use a lump hammer and then switch to a sledge when the going got tougher. I was able to get 10 foot ground rods in below ground level. Some were ea
/archives//html/Towertalk/2011-05/msg00437.html (9,159 bytes)


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