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Total 132 documents matching your query.

81. RE: [TowerTalk] New antenna system (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Tue, 9 Nov 2004 20:16:20 -0500
A 10 inch difference in turning radius between a 12' and 16' boom three element antenna isn't significant ... not with a turning radius in the 19' range. I don't think the 2' 3" difference in betwee
/archives//html/Towertalk/2004-11/msg00287.html (9,933 bytes)

82. RE: [TowerTalk] 80m 4Square Dipole VSWR question (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Wed, 17 Nov 2004 15:57:57 -0500
Except the 0 degree port and the 180 degree port are actually connected in parallel (the 180 degree port is connected to the zero degree port through a phase reversal transformer/un-un). Thus, you h
/archives//html/Towertalk/2004-11/msg00474.html (9,029 bytes)

83. RE: [TowerTalk] 80m 4Square Comtek box (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Thu, 18 Nov 2004 11:52:16 -0500
Actually, there is enough information in ON4UN's book for a competent individual to build a hybrid style (quadrature) phasing unit without much more than an MFJ-259B. Of course a good scope and curr
/archives//html/Towertalk/2004-11/msg00512.html (9,213 bytes)

84. RE: why crankup..Re: [TowerTalk] Looking for some tower advice (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Fri, 19 Nov 2004 21:19:27 -0500
There seem to be a couple of advantages to a crank-up here in hurricane country ... it seems like most of the antennas on crank-ups survived the recent triple threat (they were down at 20' or so) wh
/archives//html/Towertalk/2004-11/msg00594.html (8,783 bytes)

85. RE: [TowerTalk] Antenna modeling (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Wed, 8 Dec 2004 12:01:31 -0500
The SteppIR elements are all insulated from the boom. As such, unless your antenna switch shorts all unused antennas to ground, the only contribution to top loading is from one side of the driven el
/archives//html/Towertalk/2004-12/msg00183.html (8,748 bytes)

86. RE: [TowerTalk] Rohn 25g ennginnering spec. 130 mph (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Thu, 9 Dec 2004 10:31:51 -0500
You are not going to be able to meet those requirements with Rohn 25. The old data I have (1988) shows no capacity at 90 MPH with any more than 14 feet above the top house bracket. Even at 70 MPH, 34
/archives//html/Towertalk/2004-12/msg00220.html (8,512 bytes)

87. RE: [TowerTalk] rohn 55g freestanding (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Thu, 16 Dec 2004 16:59:15 -0500
Rohn's book (drawing A871266 dated 9/24/1987) shows the limit of 5.7 sq ft at 35 feet for 90 mph and 1/2" ice. The tower is freestanding to 45 feet with NO ANTENNAS under the same conditions. Rohn S
/archives//html/Towertalk/2004-12/msg00314.html (8,249 bytes)

88. RE: [TowerTalk] 9913 & 9913f (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Mon, 20 Dec 2004 12:43:19 -0500
Jim, Look at LMR400DB (direct burial) ... it is "flooded" with a sealing compound that will keep water from wicking. The stuff is very "sticky" and the critters don't like it <G>. 73, ... Joe, K4IK _
/archives//html/Towertalk/2004-12/msg00401.html (7,495 bytes)

89. RE: [TowerTalk] insurance and towers (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Wed, 29 Dec 2004 10:21:12 -0500
Jim, There is a process, although I do not have the particulars, to have that record corrected. Check with your state insurance department. This has been an issue recently in Florida due to coverage
/archives//html/Towertalk/2004-12/msg00557.html (9,406 bytes)

90. RE: [TowerTalk] Re: Oddity in digging a tower base (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Sat, 1 Jan 2005 18:20:30 -0500
Move it ... if you don't and you have any problem you will regret it. It will also be difficult to put either a section of tower in the base (Rohn 25/45/55) and/or install a prebuilt rebar cage with
/archives//html/Towertalk/2005-01/msg00012.html (7,866 bytes)

91. RE: [TowerTalk] Rotating Dipole (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Thu, 6 Jan 2005 18:49:10 -0500
Get rig of the 'original' at the end ... use http://www.qsl.net/ve6wz/intro.htm 73, ... Joe, K4IK _______________________________________________ See: http://www.mscomputer.com for "Self Supporting T
/archives//html/Towertalk/2005-01/msg00168.html (11,922 bytes)

92. RE: [TowerTalk] geo888@cs.com (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Mon, 10 Jan 2005 14:54:27 -0500
David, The 12/1/2004 and 1/1/2005 mailings both triggered the RBL. The mailing list manager for Contesting.com notified the administrators for all contesting.com lists (I manage two lists) in the las
/archives//html/Towertalk/2005-01/msg00302.html (9,060 bytes)

93. RE: [TowerTalk] geo888@cs.com (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Mon, 10 Jan 2005 14:24:17 -0500
I have contacted ARRL and geo888@cs.com is not something they forward to. Because the monthly e-mail reminders were causing contesting.com to be blacklisted, they have been suspended. That option is
/archives//html/Towertalk/2005-01/msg00306.html (9,496 bytes)

94. RE: [TowerTalk] Banishment? (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Tue, 11 Jan 2005 22:25:31 -0500
All this back-and-forth is way off topic but I've reached the tipping point and need to sound off ... TowerTalk is not a Champion Radio support forum and is not funded by Champion Radio. The individu
/archives//html/Towertalk/2005-01/msg00371.html (9,494 bytes)

95. RE: [TowerTalk] Banishment? (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Wed, 12 Jan 2005 11:05:07 -0500
Bill, "Get real," yourself. This reached the reflector due to the the banning of a formerly active reflector participant by Steve. The dispute did not reach the reflector until Steve chose to ban the
/archives//html/Towertalk/2005-01/msg00392.html (10,246 bytes)

96. [TowerTalk] Rohn 55 vs. Rohn 45 (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Thu, 13 Jan 2005 01:20:02 -0500
OK, here's a toss up that should generate some real discussion: Rohn 45 and Rohn 55 have essentially the same face width and the same cross bracing. The Rohn 55 has slightly thicker wall side rails -
/archives//html/Towertalk/2005-01/msg00423.html (8,367 bytes)

97. RE: [TowerTalk] Rohn 55 vs. Rohn 45 (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Thu, 13 Jan 2005 20:54:54 -0500
3 guages of wall thickness (11 vs. 14), 1.5" diameter vs. 1.25" diameter and 95# per section vs 70# per section... The additional ultimate strength is fine if one is looking for maximum load at maxim
/archives//html/Towertalk/2005-01/msg00456.html (8,723 bytes)

98. RE: [TowerTalk] unguyed heights for Rohn 65 etc.? (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Thu, 13 Jan 2005 22:59:20 -0500
The Rohn Commercial Catalog (11993) gives the following allowable antenna areas for Rohn 65 at 80 MPH (Prince Georges Co. is 75 MPH zone): Ht. no ice 1/2" ice 50' 19.7 19.1 60' 9.4 4.1 Note 3: Desig
/archives//html/Towertalk/2005-01/msg00462.html (8,702 bytes)

99. RE: [TowerTalk] remote antenna switch (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Tue, 18 Jan 2005 15:04:27 -0500
Some very good ideas here: http://www.iol.ie/~bravo/remote.htm 73, ... Joe, K4IK _______________________________________________ See: http://www.mscomputer.com for "Self Supporting Towers", "Wireles
/archives//html/Towertalk/2005-01/msg00779.html (7,680 bytes)

100. RE: [TowerTalk] Re: TowerTalk Digest, Vol 25, Issue 110 (score: 1)
Author: "Joe Subich, K4IK" <k4ik@subich.com>
Date: Wed, 19 Jan 2005 16:18:47 -0500
Still easier, find a flexible plumbing coupler ... Home Depot locally has them in 2" to 3" (and 2" to 4"). Slide the 2" end down over the mast leaving the "wide" end down over the "pointy top" of th
/archives//html/Towertalk/2005-01/msg00847.html (8,847 bytes)


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