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Total 435 documents matching your query.

321. Re: [TowerTalk] Does anyone have a rotor head for ez-way tower? (score: 1)
Author: TexasRF@aol.com
Date: Thu, 18 Nov 2010 11:35:30 EST
Now that sounds like a liberated woman! And at her age, Bravo! 73, Gerald K5GW In a message dated 11/18/2010 8:47:21 A.M. Central Standard Time, gillie@pa.net writes: This must be happening a lot dow
/archives//html/Towertalk/2010-11/msg00286.html (9,351 bytes)

322. Re: [TowerTalk] US Tower Cross Braces? (score: 1)
Author: TexasRF@aol.com
Date: Sat, 27 Nov 2010 09:38:09 EST
There just has to be a story behind that question!? 73 de K5GW In a message dated 11/27/2010 8:09:43 A.M. Central Standard Time, rich@n7tr.com writes: What size diameter are the cross braces on the t
/archives//html/Towertalk/2010-11/msg00427.html (7,278 bytes)

323. Re: [TowerTalk] Condensation inside LMR-1200 + 7/8" heliax ? (score: 1)
Author: TexasRF@aol.com
Date: Thu, 2 Dec 2010 06:26:04 EST
Hi Jim, I have experience with 7/8" Heliax water condensation inside the center conductor. In my case, I found that wrapping the center pin threads with a couple of layers of teflon plumbers tape bef
/archives//html/Towertalk/2010-12/msg00047.html (8,668 bytes)

324. Re: [TowerTalk] Can capacity hats be installed inboard of a coil or LL ?? (score: 1)
Author: TexasRF@aol.com
Date: Sun, 5 Dec 2010 10:49:57 EST
Jim, these are the same issues that come up with mobile HF antennas and various loading methods. All of the techniques you mentioned will make the element electrically longer and that is what you are
/archives//html/Towertalk/2010-12/msg00129.html (13,141 bytes)

325. Re: [TowerTalk] Never before asked question (score: 1)
Author: TexasRF@aol.com
Date: Tue, 7 Dec 2010 21:42:03 EST
Steve, I guess I don't understand why you think concrete will stick to the forms? And if it does, why is that a problem unless you are planning to take them back to the lumber store for a refund when
/archives//html/Towertalk/2010-12/msg00175.html (8,084 bytes)

326. Re: [TowerTalk] Four Square Array: effect of placing tower with yagi etc in c... (score: 1)
Author: TexasRF@aol.com
Date: Fri, 10 Dec 2010 07:32:16 EST
Hi Barry, I have no actual experience with this but common sense says that the answer depends entirely on the resonant frequency of the central structure. If it is resonant at 1.825 MHz, there just H
/archives//html/Towertalk/2010-12/msg00219.html (8,175 bytes)

327. Re: [TowerTalk] 80/40 coax trap dipole design (score: 1)
Author: TexasRF@aol.com
Date: Thu, 16 Dec 2010 09:36:29 EST
Peter, you might want to look at the pdf copy of the original article. There is no "trap" per se in the design. Instead, there is a clever arrangement using a parallel LC circuit that provides induct
/archives//html/Towertalk/2010-12/msg00279.html (9,693 bytes)

328. Re: [TowerTalk] Moxon questions (score: 1)
Author: TexasRF@aol.com
Date: Thu, 16 Dec 2010 21:06:20 EST
Just curious here; were the broken wires at a soldered connection? 73, Gerald K5GW In a message dated 12/16/2010 11:28:26 A.M. Central Standard Time, greenacres113@charter.net writes: I have a proble
/archives//html/Towertalk/2010-12/msg00291.html (9,585 bytes)

329. Re: [TowerTalk] 1/4 wave coax "Balun"? (score: 1)
Author: TexasRF@aol.com
Date: Wed, 29 Dec 2010 09:12:17 EST
Quarter wave baluns are used extensively in VHF/UHF applications. There two variations, one using a coax of an impedance needed for desired impedance matching and surrounded by a sleeve connected to
/archives//html/Towertalk/2010-12/msg00395.html (14,340 bytes)

330. [TowerTalk] 55G Sale (score: 1)
Author: TexasRF@aol.com
Date: Thu, 6 Jan 2011 10:02:30 EST
For Towertalk readers: Texas Towers is offering 26 sections of 55G tower at a 45G price. A total of 26 sections are being offered at $269 each, first come, first served. These are new, 2010 manufactu
/archives//html/Towertalk/2011-01/msg00132.html (6,767 bytes)

331. Re: [TowerTalk] Rohn base specs (score: 1)
Author: TexasRF@aol.com
Date: Tue, 18 Jan 2011 09:31:27 EST
Just a bit of pencil scratching on the back of an envelope shows a base like this to be far from overkill, especially considering it is based on "normal" soil. When I drive a medium sized tractor aro
/archives//html/Towertalk/2011-01/msg00280.html (9,453 bytes)

332. Re: [TowerTalk] Wireless tower direction indicator? (score: 1)
Author: TexasRF@aol.com
Date: Mon, 31 Jan 2011 04:56:23 EST
Jari, what is so special about the bad potentiometer that it defies substitution? 73, Gerald K5GW In a message dated 1/31/2011 2:42:10 A.M. Central Standard Time, jari.jussila@oh2bu.pp.fi writes: I h
/archives//html/Towertalk/2011-01/msg00468.html (8,217 bytes)

333. Re: [TowerTalk] Wireless tower direction indicator? (score: 1)
Author: TexasRF@aol.com
Date: Mon, 31 Jan 2011 08:57:21 EST
Scott, that sounds like a great idea! Now, how can one add wireless transmission to get those pulse back to the shack? I need capability to transmit pulses over a distance of about 600 feet? I bet so
/archives//html/Towertalk/2011-01/msg00471.html (10,431 bytes)

334. Re: [TowerTalk] Wireless tower direction indicator? (score: 1)
Author: TexasRF@aol.com
Date: Mon, 31 Jan 2011 09:49:43 EST
Jim, many thanks for the tips! Linx has two way rf modules listed and that will allow direction control as well as remote direction sensing. I can see the possibility of installing a rechargeable bat
/archives//html/Towertalk/2011-01/msg00474.html (8,448 bytes)

335. Re: [TowerTalk] Intruder on 3985? (score: 1)
Author: TexasRF@aol.com
Date: Thu, 3 Feb 2011 06:35:48 EST
Perhaps this will initiate some action to further expand the SSB segment of the band down into part of the mostly unused cw segment. Long overdue in my opinion. How to make this antenna/tower relevan
/archives//html/Towertalk/2011-02/msg00052.html (9,176 bytes)

336. Re: [TowerTalk] Non-Guyed Support for 80m Horizontal Loop at 35 feet (score: 1)
Author: TexasRF@aol.com
Date: Sat, 5 Feb 2011 21:24:42 EST
One cu ft = 12 X 12 X 12 cubic inches or 1728 cubic inches. If i.d. of tube is 4 inches, area is 2 X 2 X PI = 12.57 sq inches. Total volume for 40 ft length is 12.57 X 12 X 40 = 6031.85 cubic inches.
/archives//html/Towertalk/2011-02/msg00101.html (7,544 bytes)

337. Re: [TowerTalk] Force12 rivets (score: 1)
Author: TexasRF@aol.com
Date: Sat, 19 Feb 2011 10:29:58 EST
Another useful feature of hose clamps is their tendency to keep ice from sliding down the element as it melts. At first thought, this may seem like a bad thing, but when ice slides down a drooping el
/archives//html/Towertalk/2011-02/msg00351.html (16,496 bytes)

338. Re: [TowerTalk] Temporary guys (score: 1)
Author: TexasRF@aol.com
Date: Thu, 31 Mar 2011 10:16:58 EDT
To point out the obvious: Sometimes temporary guys are attached to temporary anchors and they may be a lot closer to the tower than the recommended 80% figure for permanent guys. This reduces the guy
/archives//html/Towertalk/2011-03/msg00481.html (9,235 bytes)

339. Re: [TowerTalk] Help with fixing a leaning tower (NOT Pisa) (score: 1)
Author: TexasRF@aol.com
Date: Sun, 17 Apr 2011 18:33:00 EDT
Art, How much lean are you seeing? There are number of possible solutions depending on your capabilities and how much time and $$ you are willing to spend. 73, Gerald K5GW In a message dated 4/17/201
/archives//html/Towertalk/2011-04/msg00258.html (10,033 bytes)

340. Re: [TowerTalk] Aluminium tube (score: 1)
Author: TexasRF@aol.com
Date: Thu, 28 Apr 2011 08:52:38 EDT
John, a broken boom will not be perfectly round at the fracture point. You may well need the extra space the .048 material will provide. I suggest you use the available .048" material, cut a couple o
/archives//html/Towertalk/2011-04/msg00475.html (8,334 bytes)


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