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References: [ +from:dbowker@mail.sjv.net: 15 ]

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1. [TowerTalk] Concrete "Slump" (score: 1): Author: dbowker@mail.sjv.net (Dave Bowker); Date: Mon Jun 2 11:06:04 2003; Slump is a measure of consistency. Too high a slump will prevent the concrete from flowing properly, while too low a slump can cause problems of high pressures in the form, outflow of mortar (through; /archives//html/Towertalk/2003-06/msg00557.html (6,946 bytes)
2. [TowerTalk] Concrete "Slump" (score: 1): Author: "Dave Bowker" <dbowker@mail.sjv.net>; Date: Thu, 29 May 2003 12:31:01 -0400; Slump is a measure of consistency. Too high a slump will prevent the concrete from flowing properly, while too low a slump can cause problems of high pressures in the form, outflow of mortar (through; /archives//html/Towertalk/2003-05/msg00437.html (8,320 bytes)
3. [Towertalk] Tower Registration Requirements (score: 1): Author: dbowker@mail.sjv.net (Dave Bowker); Date: Wed, 11 Sep 2002 00:21:57 -0400; The FCC's ASR website http://wireless.fcc.gov/antenna provides a wealth of info on tower registration requirements, software for determining if a tower (or any structure) needs to be registered, onli; /archives//html/Towertalk/2002-09/msg00376.html (6,526 bytes)
4. [Towertalk] Towertalk] Putting Up A Tower (score: 1): Author: dbowker@mail.sjv.net (Dave Bowker); Date: Tue, 17 Sep 2002 10:23:01 -0400; Since your tower will be in excess of 60.69 meters AGL (200') you must apply to the FCC in advance of construction and file a registration application and obtain an ASR # in accordance with 47 C.F.R.; /archives//html/Towertalk/2002-09/msg00686.html (7,028 bytes)
5. [TowerTalk] RE: TowerTalk] Shunt fed towers (score: 1): Author: dbowker@mail.sjv.net (Dave Bowker); Date: Wed, 1 Aug 2001 06:50:14 -0400; It is possible to shunt feed the same tower on more than one band. See my article entitled "Low-Band Tri-Bander", The DX Magazine, Vol VI, No. 1, Jan/Feb 1994, pp. 9-13 for construction details. 73,; /archives//html/Towertalk/2001-08/msg00001.html (7,222 bytes)
6. [TowerTalk] FS: HyGain 204BA(S) SS_Clamp Kit (score: 1): Author: dbowker@mail.sjv.net (Dave Bowker); Date: Wed, 29 Dec 1999 14:25:27 -0500; HyGain P/N AC31566 stainless steel clamp kit to upgrade 204BA. Consists of 8-each of the following HyGain P/N compression clamps: 380413, 380420, 380421, 380422. [NOTE: HyGain DID NOT include bolts/n; /archives//html/Towertalk/1999-12/msg00509.html (7,449 bytes)
7. [TowerTalk] FS Transco Coax Switch (score: 1): Author: dbowker@mail.sjv.net (Dave Bowker); Date: Mon, 15 Nov 1999 11:00:19 -0500; For Sale: Transco PN 136C00200 SP6T coax switch, Type-N connectors, 28 Vdc coils with indicating contacts, data sheet, and mating control connector. This unit is rated >100 dB isolation , <1.05:1 VSW; /archives//html/Towertalk/1999-11/msg00303.html (7,052 bytes)
8. [TowerTalk] RE: FS Transco Coax Switch (score: 1): Author: dbowker@mail.sjv.net (Dave Bowker); Date: Mon, 15 Nov 1999 19:46:26 -0500; The subject switch has been sold. Thanks for all the inquiries. 73, Dave, K1FK Fort Kent, ME -- FAQ on WWW: http://www.contesting.com/towertalkfaq.html Submissions: towertalk@contesting.com Administr; /archives//html/Towertalk/1999-11/msg00317.html (6,772 bytes)
9. [TowerTalk] Environmental Proof Cable Ties (score: 1): Author: dbowker@mail.sjv.net (Dave Bowker); Date: Tue, 21 Sep 1999 16:21:30 -0400; Material to fabricate life-time, reusable, removable, environmental proof cable ties for securing coax and other cable to tower legs, booms, etc., is available at your local hardware or automotive st; /archives//html/Towertalk/1999-09/msg00504.html (6,975 bytes)
10. [TowerTalk] amplifiers for phased arrays (score: 1): Author: "Dave Bowker" <dbowker@mail.sjv.net>; Date: Fri, 4 Mar 2005 16:44:03 -0500; The performance of any phased array is critically dependent upon proper [phasing] and [amplitude] of the power delivered to each element in the array. If we consider only the transmitting case, this; /archives//html/Towertalk/2005-03/msg00124.html (8,329 bytes)
11. Re: [TowerTalk] Rohn 45 Bracketed Tower (score: 1): Author: "Dave Bowker" <dbowker@mail.sjv.net>; Date: Sun, 4 Sep 2005 13:14:19 -0400; Bob, Follow the manufacturers design specifications. There is no way to cheat "reality" and physics! No PE in his right mind and honorable of his professional license will "stretch" the [manufacturer; /archives//html/Towertalk/2005-09/msg00132.html (8,073 bytes)
12. [TowerTalk] 160 M vertical and snow. (score: 1): Author: "Dave Bowker" <dbowker@mail.sjv.net>; Date: Tue, 27 Mar 2007 13:54:37 -0400; The base of the vertical is a very low impedance point, and snow will not have any effect. I routinely (every winter) see 6+ feet snow depth surrounding my 4-element array and the monster 160/80M ver; /archives//html/Towertalk/2007-03/msg00571.html (7,277 bytes)
13. [TowerTalk] Tower Grounding Article (score: 1): Author: "Dave Bowker" <dbowker@mail.sjv.net>; Date: Wed, 18 Apr 2007 08:57:15 -0400; A short, but interesting article entitled "Well-grounded Principles" by Jay Jacobsmeyer, P.E., appears in the April issue of Mobile Radio Technology magazine: http://mrtmag.com/techspeak/radio_wellgr; /archives//html/Towertalk/2007-04/msg00327.html (6,908 bytes)
14. [TowerTalk] exploding concrete (score: 1): Author: "Dave Bowker" <dbowker@mail.sjv.net>; Date: Sat, 15 Sep 2007 14:56:29 -0400; An interesting article in MRT for April 1, 2007 > http://mrtmag.com/techspeak/radio_wellgrounded_principles/index.html < dealing with grounding of structures and downleads and the Ufer ground include; /archives//html/Towertalk/2007-09/msg00528.html (7,462 bytes)
15. [TowerTalk] Tower Construction (score: 1): Author: "Dave Bowker" <dbowker@mail.sjv.net>; Date: Fri, 5 Oct 2007 14:52:33 -0400; Watch, in real time, construction of a 1500' tower in Florida at: http://www.wirelessestimator.com/t_content.cfm?pagename=Southeast%20Tower%20Construction This apparently is the first tall broadcast; /archives//html/Towertalk/2007-10/msg00133.html (6,616 bytes)

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