Search String: Display: Description: Sort:

Results:

References: [ +from:NPAlex@aol.com: 82 ]

Total 82 documents matching your query.

61. [TowerTalk] Splicing 3" Boom material (score: 1)
Author: NPAlex@aol.com
Date: Wed, 18 Mar 2009 06:47:31 EDT
The technique of ripping a full length slot in a "coupler" piece 18" to 36" in length is a well established method I used in joining 12 and 15 ft lengths of 3" material. The assembly technique was to
/archives//html/Towertalk/2009-03/msg00526.html (8,446 bytes)

62. [TowerTalk] LM 470 towers (score: 1)
Author: NPAlex@aol.com
Date: Mon, 11 May 2009 00:10:49 EDT
I have had three different LM-470 towers over the years and each has a balance overlap or extension when completely retracted. It is true that when all the way down it is not possible to service or i
/archives//html/Towertalk/2009-05/msg00235.html (10,487 bytes)

63. [TowerTalk] LM-470 rotor removal (score: 1)
Author: NPAlex@aol.com
Date: Sun, 31 May 2009 23:39:46 EDT
Bill, I have had the same issue with a couple of my LM-470 towers in years past and the method used was to tilt the tower over until it was horizontal, but I used a heavy timber (4x4) placed under th
/archives//html/Towertalk/2009-05/msg00538.html (8,799 bytes)

64. [TowerTalk] LM- 354 Failure (score: 1)
Author: NPAlex@aol.com
Date: Mon, 8 Jun 2009 19:49:17 EDT
Paul, I have had cable failure on one of my LM 470 towers as well. Although the cable was rusted, and many years old that failure was caused by another component in the tower system. The real culprit
/archives//html/Towertalk/2009-06/msg00227.html (8,756 bytes)

65. [TowerTalk] Limit Switches, LM 470 (score: 1)
Author: NPAlex@aol.com
Date: Tue, 27 Oct 2009 00:13:48 EDT
Larry, Having added switches to 3 different LM-470's I found that there are several locations and ways to do it. The DWN relay is the most straight forward, as it can be mounted almost anywhere below
/archives//html/Towertalk/2009-10/msg00442.html (8,782 bytes)

66. [TowerTalk] US Tower - (score: 1)
Author: NPAlex@aol.com
Date: Sat, 14 Nov 2009 09:06:30 EST
Eric, I do not have a 589 for sale, but I do have a set of base bolts for anchoring the Tee Base into concrete. I thought I was going to relocate my tower and bought a new set of bolts. There are six
/archives//html/Towertalk/2009-11/msg00252.html (7,058 bytes)

67. [TowerTalk] Electrically "changing" Boom length (score: 1)
Author: NPAlex@aol.com
Date: Mon, 30 Nov 2009 21:03:08 EST
Dink, You might try your idea of hanging some wire to "lengthening" the boom, but the approach I would consider is the technique of removing guy wire resonance by breaking them up with insulators. Br
/archives//html/Towertalk/2009-11/msg00539.html (10,799 bytes)

68. [TowerTalk] Prop Pitch motor power (score: 1)
Author: NPAlex@aol.com
Date: Wed, 17 Mar 2010 00:02:23 EDT
There were several good responses to the question below - I have been using a prop pitch motor rotator for nearly 40 years with great success. Most power supplies are located in the shack and feed ca
/archives//html/Towertalk/2010-03/msg00295.html (9,012 bytes)

69. [TowerTalk] LM-354 tower drawing (score: 1)
Author: NPAlex@aol.com
Date: Sat, 3 Apr 2010 23:02:12 EDT
Tom, You might want ot make a copy of this tower drawing as it may be useful in sale or installation of the tower you got from Jerry. http://www.tashtowers.com/pdf/LM354-01.pdf Norm W4QN ____________
/archives//html/Towertalk/2010-04/msg00126.html (6,721 bytes)

70. [TowerTalk] US Tower Local Control problem (score: 1)
Author: NPAlex@aol.com
Date: Tue, 27 Apr 2010 21:01:10 EDT
John, Based on your comments below that it works both UP and DWN from the REMOTE position would indicate that the UP/DWN relays and limit switches are okay. This leaves two possibilities, one is when
/archives//html/Towertalk/2010-04/msg00911.html (8,564 bytes)

71. [TowerTalk] LM470 gear box (score: 1)
Author: NPAlex@aol.com
Date: Tue, 20 Jul 2010 22:46:10 EDT
Dan, The problem of getting heavy lubricant into a difficult location was a typical automotive issue trying to get 90w hypoid oil into the differential gear housing in the rear axle. The solution was
/archives//html/Towertalk/2010-07/msg00436.html (8,793 bytes)

72. [TowerTalk] Need selsyns for Telrex rotor (score: 1)
Author: NPAlex@aol.com
Date: Mon, 9 Aug 2010 22:59:45 EDT
Mike, I have several selsyns, but all are 115v 60 Hz types - I think you will find that the voltage on yours is also 110v, but at 400 Hz (aircraft generator frequency) and dropping the voltage to 57
/archives//html/Towertalk/2010-08/msg00210.html (8,006 bytes)

73. [TowerTalk] Relay box location (score: 1)
Author: NPAlex@aol.com
Date: Tue, 17 Aug 2010 23:52:06 EDT
Mark, I would strongly recommend not locating the relay at the 80ft level on your tower unless you enjoy climbing, on a cold winter night, during a contest or other inopportune time. Because that is
/archives//html/Towertalk/2010-08/msg00423.html (8,967 bytes)

74. [TowerTalk] Cubex still in business (score: 1)
Author: NPAlex@aol.com
Date: Fri, 27 Aug 2010 18:35:36 EDT
Dwight, I am sure Roger and Cubex are still in business, but being a small company he may have taken some vacation time. However having been the designer of most of the Cubex 6 meter Quads I may be a
/archives//html/Towertalk/2010-08/msg00581.html (7,361 bytes)

75. [TowerTalk] relays (score: 1)
Author: NPAlex@aol.com
Date: Tue, 28 Sep 2010 22:31:27 EDT
The term was Bi furcated - having two parallel contacts increases contact reliability significantly. Particularly important in telephone switches Norm W4QN == Message: 1 Date: Tue, 28 Sep 2010 13:14:
/archives//html/Towertalk/2010-09/msg00727.html (7,439 bytes)

76. [TowerTalk] Small Prop Pitch water seal (score: 1)
Author: NPAlex@aol.com
Date: Sun, 5 Dec 2010 22:26:33 EST
Terry, It does sound like you have water intrusion and that is causing the problem. Most likely it has been happening for a long time, and has been mixed with the lubricant and emulsified - this can
/archives//html/Towertalk/2010-12/msg00137.html (7,947 bytes)

77. [TowerTalk] 1/4w matching, Common mode chokes and BAL-UN (score: 1)
Author: NPAlex@aol.com
Date: Wed, 29 Dec 2010 22:35:48 EST
Bob, I think a more accurate description of several coiled turns of coaxial cable would be a RF Choke, serving to limit common mode currents on the outside of the coax cable. Norm W4QN == In a messag
/archives//html/Towertalk/2010-12/msg00409.html (8,727 bytes)

78. [TowerTalk] Tri Ex mast sleeve (score: 1)
Author: NPAlex@aol.com
Date: Fri, 14 Oct 2011 14:18:27 -0400 (EDT)
Chris, The Tri-EX mast sleeve is designed for 2" tubing (OD= 2.0", don't confuse pipe sizes which generally describe the ID of the pipe. 1-1/2" Pipe OD measures slightly under 2" dia. and a little sl
/archives//html/Towertalk/2011-10/msg00237.html (8,228 bytes)

79. [TowerTalk] Anchor bolts for LM470 (score: 1)
Author: NPAlex@aol.com
Date: Sun, 15 Apr 2012 21:08:01 -0400 (EDT)
Glen, I have had several TriEX LM-470 towers and none of them used "J" bolt anchors. TriEX system uses Steel 'Flags' (with mounting holes ) welded to Large Diameter Re-Bar cage that is imbedded in th
/archives//html/Towertalk/2012-04/msg00266.html (9,403 bytes)

80. [TowerTalk] HD 589 cable failure (score: 1)
Author: NPAlex@aol.com
Date: Wed, 23 May 2012 00:09:15 -0400 (EDT)
I have also had the sad experience of a cable failure on one of my LM-470 towers. My cables showed sign of surface rust, but the real failure culprit was a rusted out pulley bearing. When raising the
/archives//html/Towertalk/2012-05/msg00261.html (7,581 bytes)


This search system is powered by Namazu