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101. True North in One Sentence (again) (score: 1): Author: broz@csn.net (John Brosnahan); Date: Tue, 07 Jan 1997 10:12:19 -0600; Of course it makes a difference in time if you go out and observe the sunrise and sunset and your horizon is different in one direction than the other (although you could compensate for it). But the; /archives//html/Towertalk/1997-01/msg00148.html (8,317 bytes)
102. NORTH!!!!! Let's get it RIGHT! (score: 1): Author: broz@csn.net (John Brosnahan); Date: Wed, 08 Jan 1997 11:18:03 -0600; (No, sorry, but then the deviation is not correct either.) That is not what is being talked about. The use of declination in your case is for astronomical purposes--where the position of a star is d; /archives//html/Towertalk/1997-01/msg00194.html (8,293 bytes)
103. North (nevermore) (score: 1): Author: broz@csn.net (John Brosnahan); Date: Wed, 08 Jan 1997 18:03:48 -0600; Hi, Stu-- You have declination defined in the astronomical sense as is used with right ascension. This OPTICAL use is for astronomers and navigators. But declination is also used in the MAGNETIC fiel; /archives//html/Towertalk/1997-01/msg00203.html (7,242 bytes)
104. 4130 masts (score: 1): Author: broz@csn.net (John Brosnahan); Date: Thu, 09 Jan 1997 06:44:52 -0600; A Too early (6:00 a.m.) to get into the deep math but thicker wall is ALWAYS stronger and larger diameter is ALWAYS stronger. Any decrease in strength MUST be due to a change in the material itself i; /archives//html/Towertalk/1997-01/msg00213.html (9,456 bytes)
105. amp-talk (score: 1): Author: broz@csn.net (John Brosnahan); Date: Wed, 15 Jan 1997 18:16:34 -0600; One word of caution on using "old amplifiers" (pre-WARC designs) on 12 meters. Most old amplifiers used a plate RF choke with a series resonance near 24-25 MHz. Operating one of these amps on 12 mete; /archives//html/Towertalk/1997-01/msg00335.html (6,763 bytes)
106. Mast Strength (score: 1): Author: broz@csn.net (John Brosnahan); Date: Mon, 02 Dec 1996 10:14:27 -0600; Without knowing the exact material it is impossible to say for sure. But if one makes an assumption that the yield strength of the material is 60,000 psi then the survivability of the mast is 70.4 mp; /archives//html/Towertalk/1996-12/msg00013.html (9,334 bytes)
107. Guy Line Tension (score: 1): Author: broz@csn.net (John Brosnahan); Date: Sun, 15 Dec 1996 22:05:05 -0600; Mother nature looks out for guys like you! 1) The mast is relatively flexible 2) Tension the guys to make the mast to vertical 3) The tensions in guys of different angles will be different, but that; /archives//html/Towertalk/1996-12/msg00235.html (7,125 bytes)
108. Guy Wire Tension (score: 1): Author: broz@csn.net (John Brosnahan); Date: Tue, 17 Dec 1996 21:10:48 -0600; Stan, It isn't an ought question--it happens by its very nature! Take a TV slip up mast --it is flexible enough to move around until the horizontal components are in equilibrium. Same thing applies t; /archives//html/Towertalk/1996-12/msg00301.html (8,934 bytes)
109. Cold Temps & Guys (score: 1): Author: broz@csn.net (John Brosnahan); Date: Tue, 24 Dec 1996 14:57:43 -0600; Except that the guys are not in the same plane as the tower, hence the spec based on 45 degree angle. To understand this take the worst case example where the tower is vertical (naturally) and the g; /archives//html/Towertalk/1996-12/msg00431.html (8,586 bytes)
110. M2 40 Mtr Yagi (score: 1): Author: broz@csn.net (John Brosnahan); Date: Sat, 09 Nov 1996 09:18:43 -0600; I have just experienced a similar problem with my 4L M^2 antenna (intermittent SWR variations and non-beam performance) and I will be taking it down tomorrow to repair/modify it. I have been in conta; /archives//html/Towertalk/1996-11/msg00062.html (8,302 bytes)
111. EMT Electrical Conduit!!!!!!!! (score: 1): Author: broz@csn.net (John Brosnahan); Date: Mon, 7 Oct 1996 07:48:53 -0600; Fellows: PLEASE!!! PLEASE!!! PLEASE!!! DO NOT USE CHAIN LINK FENCE FOR TOWER WORK!!!!!!!!!!!!!!!!! I would even be very suspicious of chain link fence toprail! I have seen some of the stuff that is n; /archives//html/Towertalk/1996-10/msg00075.html (8,986 bytes)
112. Da Birds (score: 1): Author: broz@csn.net (John Brosnahan); Date: Wed, 9 Oct 1996 08:46:10 -0600; What does the dog do? Just give the birds something to aim at other than the tower? My golden eagle isn't phased by my three dogs sitting under the tower and barking. And he seems to enjoy riding on; /archives//html/Towertalk/1996-10/msg00105.html (7,925 bytes)
113. Band Reject Coaxial Stubs (score: 1): Author: broz@csn.net (John Brosnahan); Date: Wed, 9 Oct 1996 11:24:06 -0600; You can't assume that 40M is clean -- it never is. So you will really need both 20M and 40M filters. Typical transmitters only reduce their 2nd harmonic by 40-50 dB leaving a lot of signal on 20M fro; /archives//html/Towertalk/1996-10/msg00111.html (10,204 bytes)
114. Rotating tower bearings (score: 1): Author: broz@csn.net (John Brosnahan); Date: Thu, 10 Oct 1996 05:57:18 -0600; Cam followers are the easist answer I have come up with and are what the other makers of guy rings use (at least for their bigger stuff). They are designed to be supported on one end and are complete; /archives//html/Towertalk/1996-10/msg00123.html (8,402 bytes)
115. swaged fittings for guywires (score: 1): Author: broz@csn.net (John Brosnahan); Date: Tue, 15 Oct 1996 00:44:30 -0600; I disagree with the one is enough, although my reference material is buried deep enough that I haven't found it the last time or two I looked. The original swaging tool stuff is from Nicopress and a; /archives//html/Towertalk/1996-10/msg00166.html (8,238 bytes)
116. swaged fittings for guywires (score: 1): Author: broz@csn.net (John Brosnahan); Date: Tue, 15 Oct 1996 00:53:21 -0600; Hate those 1:00 a.m. typos--especially when I am trying to be funny! Corrected version of the summary: So my feeling is that two should be used at a minimum and three should be used if you WEAR a bel; /archives//html/Towertalk/1996-10/msg00167.html (7,021 bytes)
117. Open in coax (score: 1): Author: broz@csn.net (John Brosnahan); Date: Tue, 15 Oct 1996 06:55:39 -0600; This problem is not limited to N-connectors, nor to RG-213. But the "old" style N-connectors are very susceptible to this problem in even short runs. The captivated contact N-connector--the UG-1185; /archives//html/Towertalk/1996-10/msg00170.html (11,255 bytes)
118. Preformed Guy Grips -question (score: 1): Author: broz@csn.net (John Brosnahan); Date: Wed, 16 Oct 1996 10:36:37 -0600; Vic and Steve, Any guy attachment directly to a Rohn tower should never go around JUST the tower leg, which is where it would have to go with a guy grip and a thimble. Rohn shows that all direct con; /archives//html/Towertalk/1996-10/msg00207.html (8,155 bytes)
119. Preformed Guy Grips -question (score: 1): Author: broz@csn.net (John Brosnahan); Date: Wed, 16 Oct 1996 10:50:24 -0600; Vic and Steve, Should have mentioned that the Preforms for 3/16 and 1/4 inch guy wire really don't have a big enough loop to go around the leg and the two vees properly. When I last installed prefor; /archives//html/Towertalk/1996-10/msg00208.html (8,153 bytes)
120. Preformed Guy Grips -question (score: 1): Author: broz@csn.net (John Brosnahan); Date: Wed, 16 Oct 1996 13:34:21 -0600; Steve, These calculations don't quite work out this easily since the vees are vertically separated and the plane of grip loop has to be twisted to about 45 degrees to the plane of the leg--stretching; /archives//html/Towertalk/1996-10/msg00213.html (9,244 bytes)

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