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References: [ +from:jskatz@sk.sympatico.ca: 36 ]

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21. [TowerTalk] Effect height of tower (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Sun, 09 Sep 2001 21:02:05 -0600; In ON4UN's low band dxing he gives the approximate length of a tower in degrees load with a yagi by a formula determined through experimentation. Question: Is the yagi area that is used in the formul; /archives//html/Towertalk/2001-09/msg00355.html (7,092 bytes)
22. [TowerTalk] Low Band Dxing Formula (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Tue, 11 Sep 2001 07:15:36 -0600; I have been informed that the formula given in early editions of low band dxing to estimate the electrical height of a tower is incorrect. My edition, the first edition second printing, has the follo; /archives//html/Towertalk/2001-09/msg00397.html (7,176 bytes)
23. [TowerTalk] Dentron MT3000A Question (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Tue, 18 Sep 2001 07:02:12 -0600; TT I am trying to design a matching network for my tower. I have an Autek RF-1 that has never worked since the day I got it so I am trying to innovate a way to determine what I need to design a match; /archives//html/Towertalk/2001-09/msg00517.html (7,320 bytes)
24. [TowerTalk] Tower top & C31XR (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Thu, 30 Aug 2001 07:59:56 -0600; At last my C31XR and EF240s are on the tower this weekend. I have had a little difficult tuning 15m but it seems Force 12 has a solution to this problem which I have not tried yet. I have been measur; /archives//html/Towertalk/2001-08/msg00682.html (7,957 bytes)
25. [TowerTalk] Wind Loading redux (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Thu, 7 Jun 2001 06:20:26 -0600; Eugene Your posting is extremely interesting. I have two questions: (1) Are these available on the web? element (2) Why does footnote 8 in the UBC Table 16-H --Pressure Coefficients (C q ) states "Fa; /archives//html/Towertalk/2001-06/msg00094.html (8,937 bytes)
26. [TowerTalk] Wind Loading redux (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Thu, 7 Jun 2001 08:32:19 -0600; Hank Okay - I have got the context now. Thank you. When you calculate the force (F = p A) on a cylindrical yagi element or mast where the design pressure p is given by p = q Ce Cq I and Cq is = 0.8 f; /archives//html/Towertalk/2001-06/msg00099.html (9,589 bytes)
27. [TowerTalk] Binding Rohn TB3 (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Sun, 13 May 2001 09:43:46 -0600; TT's I just took the TB3 thrust bearing off the top of my 25G foldover. Throughout the winter it seemed as if the bearing was binding and sure enough when I took it off the tower I can see that it is; /archives//html/Towertalk/2001-05/msg00291.html (7,693 bytes)
28. [TowerTalk] TB3 Fixex - a moral to the story (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Mon, 14 May 2001 08:39:12 -0600; TT's I got lots of replies with useful information. The problem it seems was due to the set screw not being screwed in far enough. From time to time a bearing would fall into the small space remainin; /archives//html/Towertalk/2001-05/msg00301.html (8,252 bytes)
29. [TowerTalk] Mast Stress Calc (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Thu, 17 May 2001 08:04:57 -0600; GM TT's If I place one piece of steel pipe inside another piece of steel pipe to reinforce a section of mast is the moment of inertia of the reinforced section determined by adding the moments of ine; /archives//html/Towertalk/2001-05/msg00384.html (7,413 bytes)
30. [TowerTalk] Lower Mast Question (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Thu, 19 Apr 2001 18:53:19 -0600; TTs I am putting a Force 12 C31XR and EF240s on my 60' tower with a 6' separation between (the 40m yagi will be rotated 90 deg with respect to the tribander). I want to mount the T2X rotator as far d; /archives//html/Towertalk/2001-04/msg00430.html (8,536 bytes)
31. [TowerTalk] Lower Mast Question Again (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Fri, 20 Apr 2001 09:54:33 -0600; TTians Thanks for all of the responses and ideas. However, no seems to have addressed question. I concede that the top section of the mast (i.e above the tower and a few feet into the tower) should b; /archives//html/Towertalk/2001-04/msg00436.html (8,848 bytes)
32. [TowerTalk] Whitemore Rope Spray (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Thu, 4 Jan 2001 17:18:34 -0600; Hi TT During the discussion about lubricating tower cables Joel, K3QBV from First Call Communications, Inc posted a note about a rope spray product made by a company called Whitemore. Does anyone hav; /archives//html/Towertalk/2001-01/msg00125.html (7,035 bytes)
33. [TowerTalk] Forked Radial System (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Mon, 15 Jan 2001 09:20:39 -0600; Has the forked radial system been modeled or tested? It sounds very interesting I have to install a radial system in the backyard and the forked system sounds like it would be ideal for me if it wor; /archives//html/Towertalk/2001-01/msg00362.html (7,411 bytes)
34. [TowerTalk] Reality Check (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Thu, 18 Jan 2001 10:51:09 -0600; Hello TTs Before I place my order for a pair of Force 12 antennas I thought I would put my design before the TT participants for a reality check and comments. First, let me thank those of you who hav; /archives//html/Towertalk/2001-01/msg00470.html (10,323 bytes)
35. [TowerTalk] RF Baluns (commercial or homemade?) (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Sat, 20 Jan 2001 14:51:21 -0600; I have made some adjustments to my tower and antenna system design thanks to some excellent comments from TowerTalkians (a special thanks to Kurt, K7NV who pointed out my glaring mistake in the way I; /archives//html/Towertalk/2001-01/msg00545.html (7,667 bytes)
36. [TowerTalk] Shadowing of small antennas by larger ones? (score: 1): Author: jskatz@sk.sympatico.ca (Sylvan Katz); Date: Wed, 31 Jan 2001 17:21:53 -0600; And Guys ..... If some one is modeling the shadowing effect could he also explore the situation where the top antenna is placed at right angles to the lower antenna. I am putting a C31XR and EF-240s; /archives//html/Towertalk/2001-01/msg00759.html (9,212 bytes)

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