Search String: Display: Description: Sort:

Results:

References: [ +from:alsopb@gloryroad.net: 174 ]

Total 174 documents matching your query.

161. [TowerTalk] "Free" radial wire (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Sat, 27 Feb 1999 18:12:12 +0000
I stumbled across a source of "free" radial wire. In this area, many well pumps are reaching their end of life. Most of them were run from a two wire 12 or 10 gauge twisted pair. When the pumps are r
/archives//html/Towertalk/1999-02/msg00557.html (7,294 bytes)

162. [TowerTalk] K factor. How derived? (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Mon, 01 Mar 1999 00:03:11 +0000
Guys, I'm trying to figure out how this K factor relates to anything physical. Obviously it is a starting torque limit. However, it is a torque that appears to be computed based upon an "arm" of the
/archives//html/Towertalk/1999-02/msg00568.html (8,536 bytes)

163. [TowerTalk] "NEW" ANTENNA IDEA II (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Mon, 25 Jan 1999 18:25:34 +0000
While we are looking at "new" products. Has anybody tried retuning the Cushcraft D40 rotary dipole to 30M? I understand the unit contains a coil and not a trap and perhaps removing the capacity hats
/archives//html/Towertalk/1999-01/msg00454.html (7,368 bytes)

164. [TowerTalk] AC operated relays for ant switching (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Thu, 28 Jan 1999 09:57:26 +0000
Good advice. However, I'd also recommend trying them first on a lower voltage. If you have a variable voltage supply, try from 12 to 24 volts. Also measure the coil resistance and figure out how much
/archives//html/Towertalk/1999-01/msg00509.html (10,671 bytes)

165. [TowerTalk] Towers via UPS? (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Sat, 30 Jan 1999 17:56:00 +0000
Anybody know of towers which can be sent via UPS instead of via normal truck routes? I'm looking for a 50' for a separate 12m antenna. I've had some astronomical shipping quotes. It seems that it is
/archives//html/Towertalk/1999-01/msg00590.html (6,965 bytes)

166. [TowerTalk] On defeating the laws of physics (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Fri, 11 Dec 1998 16:11:03 +0000
The following ad from KL7J sell/buy seems to wish the laws of physics to be defeated: Wanted: HF antenna capable of 80 -10 mtrs which is less than 8 feet in total height. Apartment dweller with flat
/archives//html/Towertalk/1998-12/msg00154.html (7,280 bytes)

167. [TowerTalk] Antenna positioning in the wind (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Sat, 12 Dec 1998 16:34:01 +0000
Us with HAZER towers have another entirely different criterion. One has to position the antenna so that if the rotor or thrust bearing fails, one can crank down the HAZER. Otherwise the boom hits the
/archives//html/Towertalk/1998-12/msg00171.html (8,886 bytes)

168. [TowerTalk] Water in matching sections (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Fri, 18 Dec 1998 14:34:16 +0000
Guys, I finally unraveled a mystery that has plagued me for almost two years. Every winter the SWR on my 160 meter inverted L would go crazy after a hard freeze. The symptom -- low power SWR a bit hi
/archives//html/Towertalk/1998-12/msg00268.html (8,080 bytes)

169. [TowerTalk] : Phased array radial query (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Mon, 21 Dec 1998 15:37:22 +0000
Also ask him how the power company gets away with a single conductor on the top of the power poles? de Brian/K3KO -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@con
/archives//html/Towertalk/1998-12/msg00307.html (9,233 bytes)

170. [TowerTalk] Windloading (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Fri, 25 Dec 1998 20:34:10 +0000
This brings up an interesting questions. Say your tower is rated for a 15 sq foot antenna. What if I put this antenna not at the top of a tower with 3 sets of guys but at the location of the second (
/archives//html/Towertalk/1998-12/msg00407.html (8,789 bytes)

171. [TowerTalk] Vertical Dipoles (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Thu, 31 Dec 1998 16:37:20 +0000
I guess I'm missing something. Is there any benefit of any kind (especially on the HF bands) to using a J-pole? It strikes me it is an intellectual persuit without any real world benefits. de Brian/K
/archives//html/Towertalk/1998-12/msg00501.html (7,552 bytes)

172. [TowerTalk] The placebo antenna (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Thu, 12 Nov 1998 16:55:15 +0000
I ran across an article in the 4/1924 issue of Wireless Days. It described the placebo antenna design. The antenna worked all bands available at the time from 500KHz down to 14Mhz. The estimated effi
/archives//html/Towertalk/1998-11/msg00372.html (7,380 bytes)

173. [TowerTalk] Air wound bauln? (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Wed, 18 Nov 1998 12:03:03 +0000
I recently dissected a commercial (name witheld here) bauln. It failed due to failure of the enamel coating between the trifilar windings. It was a 1:1 bauln supposedly covering the ham bands and rat
/archives//html/Towertalk/1998-11/msg00563.html (7,336 bytes)

174. [TowerTalk] Windload & guying (score: 1)
Author: alsopb@gloryroad.net (alsopb)
Date: Tue, 24 Nov 1998 21:38:15 +0000
Don't do it! The tower you talk about is rated 16 sq ft at 87 mph. At 80mph its rated at 19.2 sq.ft. Read the specs and you'll see that you're grossly overloading it. 73 de Brian/K3KO -- FAQ on WWW:
/archives//html/Towertalk/1998-11/msg00675.html (8,880 bytes)


This search system is powered by Namazu