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Total 599 documents matching your query.

141. [Towertalk] coax on new tower ( high desert ) (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Mon, 7 Oct 2002 14:09:13 -0700
Hi Jon, I disagree with you entirely. The "failure" has nothing to do with frequency, or an impedance bump. The failure is dielectric breakdown that occurs with high power operation and a pinched die
/archives//html/Towertalk/2002-10/msg00240.html (11,304 bytes)

142. [Towertalk] coax on new tower ( high desert ) (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Mon, 7 Oct 2002 15:57:30 -0700
No sweat, Jon. You have been careful, or maybe lucky, or maybe a bit of both! If you read "Belden Innovations," for many years running they warned about using nylon tie-wraps with coaxial cable, and
/archives//html/Towertalk/2002-10/msg00243.html (9,311 bytes)

143. [Towertalk] Feeding longwire with coax (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Tue, 8 Oct 2002 07:47:18 -0700
Johann, what do you mean by "conventional feedline?" And on what bands would you use the 30m end-fed wire? Normally, for an end-fed wire, if the wire isn't brought directly to the tuner, it's fed wit
/archives//html/Towertalk/2002-10/msg00261.html (9,126 bytes)

144. [Towertalk] attaching coax to the tower legs (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Tue, 8 Oct 2002 07:59:37 -0700
John, If you're referring to "attaching" the cable to the tower leg, it's fine to use vinyl tape, just don't pull it hard and stretch it while you're wrapping it around the cable and tower leg. The "
/archives//html/Towertalk/2002-10/msg00262.html (10,472 bytes)

145. [Towertalk] choices (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Tue, 8 Oct 2002 13:16:10 -0700
How tall is your tower, David? You said, "37' at the second section," but didn't tell us the overall height. I wouldn't mount a G5RV as an inverted vee; actually a G5RV's not much of an antenna on 80
/archives//html/Towertalk/2002-10/msg00270.html (10,058 bytes)

146. [Towertalk] choices (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Wed, 9 Oct 2002 07:46:01 -0700
Hi Jon, Re G5RV on 80m, I like to think of it as leaky dummy load. It's amazing how much better a simple 125' dipole works, at only 23' longer... WB2WIK/6 "If everything seems under control, you're j
/archives//html/Towertalk/2002-10/msg00299.html (9,695 bytes)

147. [Towertalk] choices (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Wed, 9 Oct 2002 07:54:40 -0700
Hi Chuck, I never judge an antenna by how much DX I can work with it; I judge it against other antennas. It pays to have multiple antennas, and a switch. I broke through a small pileup to work 9J2CA
/archives//html/Towertalk/2002-10/msg00300.html (11,363 bytes)

148. [Towertalk] Choices (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Wed, 9 Oct 2002 10:34:27 -0700
Bob, I request you remove the plaques, please. "If everything seems under control, you're just not going fast enough." - Mario Andretti
/archives//html/Towertalk/2002-10/msg00304.html (11,314 bytes)

149. [Towertalk] choices (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Wed, 9 Oct 2002 13:21:29 -0700
[Steve Katz] I agree with you, although others have reported their G5RV's working all the planets and several distant galaxies with no problems. I guess "whatever works" for you is the right thing t
/archives//html/Towertalk/2002-10/msg00314.html (11,483 bytes)

150. [Towertalk] More crankup questions (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Wed, 9 Oct 2002 14:23:17 -0700
[Steve Katz] I've run a heavy-gauge braided conductor inside the tower, from the top to the bottom, to parallel the tower. The only risk in doing so is that when bringing the tower down on a windy d
/archives//html/Towertalk/2002-10/msg00322.html (9,045 bytes)

151. [Towertalk] More crankup questions (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Wed, 9 Oct 2002 15:55:36 -0700
[Steve Katz] There's no pulldown cable on a TX-455. But besides that, the steel cables and the tower sections themselves aren't terribly good conductors, especially after some years outdoors. The on
/archives//html/Towertalk/2002-10/msg00327.html (10,966 bytes)

152. [Towertalk] Balun Location (more) (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 10 Oct 2002 12:56:34 -0700
[Steve Katz] It's not difficult to properly waterproof pigtails, using RTV silicone sealant or any number of products. And of course, always leave a "drip loop" at any outdoor termination! -WB2WIK/6
/archives//html/Towertalk/2002-10/msg00360.html (8,869 bytes)

153. [Towertalk] Balun Location (more) (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 10 Oct 2002 14:15:57 -0700
I agree with K4OJ. I've had _many_ (really many -- probably several dozen) beams up with pigtail lead connections waterproofed using goops of various sorts, and have never experienced failures due to
/archives//html/Towertalk/2002-10/msg00363.html (13,166 bytes)

154. [Towertalk] Balun Location (more) (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 10 Oct 2002 16:10:44 -0700
Re the little SO239 center insulator thingies... I've had those fail, too. I've actually had several of them fail (various brands, over many years) for varying reasons. But the main reason I avoid th
/archives//html/Towertalk/2002-10/msg00375.html (11,596 bytes)

155. [Towertalk] Balun Location (more) (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Thu, 10 Oct 2002 16:23:08 -0700
Mark, I'll get you a manufacturer's part number. I don't know of any 3M product for this, but have been using G-C "Red Glypt" or something like that (have it at home, will look and get back to you) f
/archives//html/Towertalk/2002-10/msg00376.html (10,771 bytes)

156. [Towertalk] choices (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Fri, 11 Oct 2002 11:47:33 -0700
Hi Joe, Absolutely they do, and a good operator, good propagation and good timing help a lot, too! I never judge an antenna by the DX it's worked; only by how it works compared to the other ones conn
/archives//html/Towertalk/2002-10/msg00407.html (11,143 bytes)

157. [Towertalk] ameritron rcs-8v (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Mon, 14 Oct 2002 07:55:13 -0700
Joe, the RCS-8V gets its ground, normally, by the coaxial cable shield on the main feedline between the shack (station) and the RCS-8V relay switch box. You can add your own supplemental ground if yo
/archives//html/Towertalk/2002-10/msg00470.html (9,795 bytes)

158. [Towertalk] ameritron rcs-8v (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Mon, 14 Oct 2002 09:22:01 -0700
Hi Charlie, The RCS-8V that I have requires a separate ground wire, in addition to the 5-wire control cable, in order to function. Each of the five wires between the control box and the relay box (to
/archives//html/Towertalk/2002-10/msg00474.html (14,005 bytes)

159. [Towertalk] [Towertalk]What rotor sys? (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Mon, 14 Oct 2002 10:18:50 -0700
Chris, I didn't see anyone else answer you, so see below..... [Steve Katz] In what way? It's a good, medium-duty rotator...been around for decades with almost no changes. [Steve Katz] Depends on how
/archives//html/Towertalk/2002-10/msg00476.html (8,016 bytes)

160. [Towertalk] ameritron rcs-8v (score: 1)
Author: stevek@jmr.com (Steve Katz)
Date: Mon, 14 Oct 2002 13:14:18 -0700
I personally do not rely on the coax shield ground, myself -- simply because everything in the station is tied to a common earth ground, and so is my tower (grounded). However, if you disconnect the
/archives//html/Towertalk/2002-10/msg00481.html (20,695 bytes)


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