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Total 896 documents matching your query.

281. Re: [TowerTalk] Can Any Tower Handle Cat 5+ Hurricane? (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Wed, 19 Oct 2005 13:34:23 -0000
Towers that are in a strong warehouse? David Robbins K1TTT e-mail: mailto:k1ttt@arrl.net web: http://www.k1ttt.net AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net _______________________________
/archives//html/Towertalk/2005-10/msg00662.html (11,118 bytes)

282. Re: [TowerTalk] ELEVATED GUY (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Thu, 20 Oct 2005 11:03:29 -0000
The forces on elevated guy points are MUCH different than straight in anchors. Not only aren't they pulling against the soil the way a normal anchor is but they have to deal with overturning and upli
/archives//html/Towertalk/2005-10/msg00684.html (11,608 bytes)

283. Re: [TowerTalk] FW: Yaesu rotator problem (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Sat, 22 Oct 2005 11:43:51 -0000
If there is a variation of these now with only 4 wires they are probably sharing a ground between the motor and indicator. A new manual is what you need, all us that have the old g-xxxxs/sdx series u
/archives//html/Towertalk/2005-10/msg00722.html (18,710 bytes)

284. Re: [TowerTalk] RE : Bearings in Rotators (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Mon, 24 Oct 2005 21:53:09 -0000
If the balls rub against each other they can't roll so having the race too full could increase friction. Some bearings have nylon spacers to evenly distribute the balls around the race to avoid this.
/archives//html/Towertalk/2005-10/msg00780.html (11,218 bytes)

285. Re: [TowerTalk] yaesu rotor control question (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Fri, 28 Oct 2005 16:44:15 -0000
See my notes on turning faster one way than the other at: http://www.k1ttt.net/technote/yaesu.html#funnyspeed David Robbins K1TTT e-mail: mailto:k1ttt@arrl.net web: http://www.k1ttt.net AR-Cluster no
/archives//html/Towertalk/2005-10/msg00845.html (8,778 bytes)

286. Re: [TowerTalk] re Twinlead zepp (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Sat, 5 Nov 2005 21:19:59 -0000
The 'double extended zepp' would sound like a 'center fed zepp' which is as far as I am concerned a confusing term. I think they have picked up on the length of the wire used for a normal zepp and fi
/archives//html/Towertalk/2005-11/msg00202.html (11,008 bytes)

287. Re: [TowerTalk] Tower Ready House for sale Colorado Springs (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Sun, 6 Nov 2005 02:06:12 -0000
Wow! A 48" self supporting tower! David Robbins K1TTT e-mail: mailto:k1ttt@arrl.net web: http://www.k1ttt.net AR-Cluster node: 145.69MHz or telnet://dxc.k1ttt.net ____________________________________
/archives//html/Towertalk/2005-11/msg00208.html (9,401 bytes)

288. Re: [TowerTalk] Faraday Loops??? (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Sun, 6 Nov 2005 02:27:20 -0000
Now that's a new one on me. Loops in the walls... well if they are all around the room and well bonded to the spg and at all the seams I wouldn't think they would cause any problems... of course they
/archives//html/Towertalk/2005-11/msg00211.html (9,323 bytes)

289. Re: [TowerTalk] Twin Lead Beverage (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Mon, 7 Nov 2005 01:39:15 -0000
I use those with the wires spaced about 1' apart, they are supported about every 75-100' on posts with spreaders. The ones I use have the reflection transformer at the far end and 2 transformers at t
/archives//html/Towertalk/2005-11/msg00231.html (9,293 bytes)

290. Re: [TowerTalk] How much concrete to set a pole? (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Tue, 8 Nov 2005 12:39:48 -0000
You have a 40' tower and can get at least 22' from the base for your poles. Then you are going to have to dig a hole. Then you are also going to back guy the poles 3-4' from the tower from the tower
/archives//html/Towertalk/2005-11/msg00265.html (12,912 bytes)

291. Re: [TowerTalk] O/T (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Thu, 10 Nov 2005 12:10:51 -0000
Now that's an idea... I wonder how much I could charge for a night for all this aluminum?? David Robbins K1TTT e-mail: mailto:k1ttt@arrl.net web: http://www.k1ttt.net AR-Cluster node: 145.69MHz or te
/archives//html/Towertalk/2005-11/msg00319.html (8,737 bytes)

292. Re: [TowerTalk] Tuna Tenna for all those big sucker fish out there. (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Sat, 12 Nov 2005 16:42:27 -0000
Yeah, but you also get the patent application, trade mark application, and 2 domain names! And of course 'Any knowledge' the inventor may be able to provide, apparently on any topic as it doesn't res
/archives//html/Towertalk/2005-11/msg00389.html (10,508 bytes)

293. Re: [TowerTalk] Concrete Temperature Sensitivity (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Tue, 15 Nov 2005 20:15:04 -0000
The local company should know the expected conditions and be able to add an appropriate additive if they think its needed. Covering and keeping it moist will help it cure, and curing gives off heat.
/archives//html/Towertalk/2005-11/msg00503.html (9,682 bytes)

294. Re: [TowerTalk] Guy Rope (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Sat, 26 Nov 2005 14:03:16 -0000
In my opinion rope guying is only for temporary use when putting up or taking down a tower or for no longer than field day lasts... and then for nothing higher than 40-50'. If you are putting up a pe
/archives//html/Towertalk/2005-11/msg00716.html (9,275 bytes)

295. [TowerTalk] new book available (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Wed, 30 Nov 2005 02:24:20 -0000
Now that my long summer vacation is over its time to wrap up what was probably the longest project of the summer. I have just put the final touches on a book I have been working on. It covers 21+ yea
/archives//html/Towertalk/2005-11/msg00816.html (7,967 bytes)

296. [TowerTalk] thanks (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Fri, 9 Dec 2005 19:42:01 -0000
Thanks to everyone who has bought my book, over 100 copies sold so far! And everyone says hams are cheap... of course I don't know yet how many of those are the expensive printed copy or the really c
/archives//html/Towertalk/2005-12/msg00181.html (7,406 bytes)

297. Re: [TowerTalk] Wanted: AO software (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Fri, 9 Dec 2005 20:15:23 -0000
I doubt if the copyright law says anything about who can or has to sell to who. It is mostly about who has the right to copy and distribute and for what purpose. You might however be able to plead a
/archives//html/Towertalk/2005-12/msg00183.html (10,170 bytes)

298. Re: [TowerTalk] Radials effect uppon reception (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Sun, 11 Dec 2005 22:07:17 -0000
Except for some very special designs all antennas are reciprocal... whatever effects how they transmit equally effects how they receive. So if more radials lowers the tx angle it also lowers the rx a
/archives//html/Towertalk/2005-12/msg00229.html (9,988 bytes)

299. Re: [TowerTalk] Thanks for the advice (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Tue, 13 Dec 2005 23:59:52 -0000
Doesn't look commercial to me... Slick maybe, but if its commercial he sure is advertising for a bunch of different companies, just looks like links to all the manufacturers of everything he has in h
/archives//html/Towertalk/2005-12/msg00296.html (10,828 bytes)

300. [TowerTalk] FW: Liquid Metal antenna? (score: 1)
Author: "David Robbins K1TTT" <k1ttt@arrl.net>
Date: Sat, 31 Dec 2005 13:46:13 -0000
Check out the msds at: http://rgmd.com/therm/msds.pdf looks like making electrical contacts could be tricky, seems corrosive to lots of metals, especially aluminum. Probably want to contain in tubing
/archives//html/Towertalk/2005-12/msg00669.html (13,731 bytes)


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