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References: [ +from:dhearn@ix.netcom.com: 203 ]

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61. [TowerTalk] Coaxial Traps, "choke Baluns," etc. (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Fri, 08 Feb 2002 23:16:23 -0800; Joe: I built a 15m coax trap to add that band to a trap vertical and it worked perfectly with no cut and try. The references at the end of ch. 7 of the ARRL antenna book gives Dec 84 Qst as one artic; /archives//html/Towertalk/2002-02/msg00295.html (9,902 bytes)
62. [TowerTalk] Teflon Coax (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Tue, 12 Feb 2002 19:33:20 -0800; What is the difference between RG 142U and RG 142B/U ? Is it the outer jacket? Is B/u jacket FEP and the U jacket fiberglass braid with no weather proofing for shield? 73, Dan, N5AR _________________; /archives//html/Towertalk/2002-02/msg00418.html (6,857 bytes)
63. [TowerTalk] U Bolts for TX-2 Rotor (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Tue, 19 Feb 2002 16:11:49 -0800; I bought an 85 foot Aermotor self supporting tower in the early 50's. It came with galvanized bolts which were used in putting it up. The tower was taken down a few years later and no problem with th; /archives//html/Towertalk/2002-02/msg00567.html (11,833 bytes)
64. [TowerTalk] Half slopers using a tower (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Mon, 31 Dec 2001 23:34:58 -0800; Stephanie: Think of your antenna as a dipole with the tower being one half of it. The tower is not a ground plane.You can expect to have to experimentally change the length of the wire to get a low S; /archives//html/Towertalk/2002-01/msg00009.html (9,970 bytes)
65. [TowerTalk] Antenna analyzer overload from BC (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Sat, 05 Jan 2002 22:43:53 -0800; Hi Pete: you are one of many who have had this problem, including myself. When I attempted to gamma match my 131 ft crankup on 160, the 259 meter was pinned regardless of what I did. I am 20 miles fr; /archives//html/Towertalk/2002-01/msg00170.html (10,651 bytes)
66. [TowerTalk] Shunt feed Tower (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Thu, 17 Jan 2002 15:20:41 -0800; Hi Randy: Will the tower have a yagi on top? How tall is it? You do not have to insulate the tower base. You need something to connect the coax shield to at the base of the tower. If you can drive a; /archives//html/Towertalk/2002-01/msg00394.html (9,754 bytes)
67. [TowerTalk] EME questions (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Thu, 17 Jan 2002 15:43:09 -0800; Hi Paul: I have operated K5GW's(Tx Twr owner) 2m moon bounce station when I lived in Dallas. He had 48 each 10 el yagis in his array. I believe it was second to W5UN's system in size. He used 1500w a; /archives//html/Towertalk/2002-01/msg00395.html (9,694 bytes)
68. [TowerTalk] EME questions ala K5GW (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Thu, 17 Jan 2002 18:48:22 -0800; Tnx Steve for that important detail. I helped put it up. The elements are split at the center and insulated with the idea it might someday be loaded for 160m. Awesome. 73, Dan _______________________; /archives//html/Towertalk/2002-01/msg00399.html (7,699 bytes)
69. [TowerTalk] RF grounding (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Thu, 17 Jan 2002 21:08:10 -0800; Probably a different length ground lead would help. Other better options are to series resonate the gnd lead on 15m or attach one or more 1/4 wave radial wires to your rig. MFJ sells a device to seri; /archives//html/Towertalk/2002-01/msg00402.html (8,793 bytes)
70. [TowerTalk] Short Tower Antenna (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Sun, 27 Jan 2002 15:19:29 -0800; I agree totally with Pete. The Hexbeam is a compromise 2 el yagi with bent wire elements. It could not possibly compete with a conventional yagi with full size straight elements. The KT 34 class beam; /archives//html/Towertalk/2002-01/msg00576.html (11,808 bytes)
71. [TowerTalk] Dielectric losses (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Wed, 30 Jan 2002 15:46:00 -0800; An article in QST about 10-15 years ago discussed loss in coax. It was written by an engineer for one of the major cable companies (possibly Amphenol?). It said that,in the HF range, the dominant los; /archives//html/Towertalk/2002-01/msg00639.html (10,159 bytes)
72. [TowerTalk] Hink and Kinks (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Wed, 19 Dec 2001 16:14:34 -0800; I have considered building a rotor shock absorber by mounting 4 conventional equipment shock absorbers between 2 plates. I am talking about thejobs with a bolt on top and a drawn metal shell on the b; /archives//html/Towertalk/2001-12/msg00437.html (11,314 bytes)
73. [TowerTalk] RJ1A Relay Coil (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Mon, 24 Dec 2001 19:56:46 -0800; Randy: Go to www.MGS4U.com and click on Presidents page. He had coils the last time I checked. 73, Dan, N5AR AN Wireless Self Supporting Towers are now available! Windloading tables, foundation diagr; /archives//html/Towertalk/2001-12/msg00562.html (8,004 bytes)
74. [TowerTalk] Re: [Force 12 Talk] Can of Worms II (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Fri, 28 Dec 2001 05:40:40 -0800; Jeff: Thru the years I have owned 8 or 10 different yagis. Some were commercial jobs and some were homebuilt. I have used rope in some of the elements, weights in the ends of some and nothing in othe; /archives//html/Towertalk/2001-12/msg00577.html (9,114 bytes)
75. [TowerTalk] Windy days (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Mon, 31 Dec 2001 02:43:46 -0800; I prefer turning the end of the elements into the wind (boom broadside). This minimizes the amount of flexing movement in the elements. 73, Dan, N5AR AN Wireless Self Supporting Towers are now availa; /archives//html/Towertalk/2001-12/msg00612.html (8,423 bytes)
76. [TowerTalk] 4 Square (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Thu, 01 Nov 2001 09:26:15 -0800; Some of the recent postings on TT lead me to believe that some of the facts about the 4 square are not well understood. Here is my understanding and I believe it agrees with info in ON4UN's Low Band; /archives//html/Towertalk/2001-11/msg00016.html (9,938 bytes)
77. [TowerTalk] please advise on terminated vee beam design (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Sat, 03 Nov 2001 07:17:29 -0800; A friend, N5RM in north Texas built a beautiful array of sloping V beams which covered all directions. The center was at 200ft and the low ends came to 8 ft posts. A wire ran down each post to a larg; /archives//html/Towertalk/2001-11/msg00055.html (10,098 bytes)
78. [TowerTalk] Kitoon (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Thu, 08 Nov 2001 10:37:32 -0800; Don, I believe it is spelled Kytoon. I did a quick search and noticed the word occurs in some wx sounding context. A local station put up a balloon supported 160m GP vertical for a contest using 2 we; /archives//html/Towertalk/2001-11/msg00192.html (8,382 bytes)
79. [TowerTalk] ferrite core weathering (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Fri, 09 Nov 2001 15:39:15 -0800; I am about to build a sleeve balun using large ferrite sleeves on RG213. It will be used at the center of an 80m dipole. The cores are a size which seems to be pretty common in surplus, 1"OD x 0.5"ID; /archives//html/Towertalk/2001-11/msg00216.html (7,303 bytes)
80. [TowerTalk] New stuff from MFJ (score: 1): Author: dhearn@ix.netcom.com (dan hearn); Date: Sun, 11 Nov 2001 18:33:59 -0800; Pete: The secret is to turn it on only when you are making a reading. The built in frequency counter means that you don't have to worry about warmup drift in the tunable oscillator. I have only repla; /archives//html/Towertalk/2001-11/msg00257.html (10,348 bytes)

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