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References: [ +from:jimjarvis@comcast.net: 326 ]

Total 326 documents matching your query.

141. [TowerTalk] geo888@cs.com "mail bounces" (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sat, 4 Dec 2004 10:11:46 -0500
Can someone explain to me...OFF Reflector, please... why I get a bounce message every time I post something to Towertalk? N2EA jimjarvis@ieee.org _______________________________________________ See:
/archives//html/Towertalk/2004-12/msg00066.html (7,114 bytes)

142. [TowerTalk] Bounces replies--- tnx to all (score: 1)
Author: jimjarvis@comcast.net
Date: Sun, 05 Dec 2004 19:43:22 +0000
Guys... Thanks to all who responded with thoughts on why I see the bounce from geo888@cs.com. In short, the reason is that geo888.cs.com is still registered as a user, but the address is no longer va
/archives//html/Towertalk/2004-12/msg00088.html (7,015 bytes)

143. [TowerTalk] free verticals (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sun, 19 Dec 2004 17:17:33 -0500
Well, for the most part, you get what you pay for. Not sure about the butternut base, but I've found that 18AVT bases make excellent mounts for 40m GP's. Have had several of them 60' up in trees, wit
/archives//html/Towertalk/2004-12/msg00385.html (7,693 bytes)

144. [TowerTalk] 9913 & 9913f (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Mon, 20 Dec 2004 11:09:13 -0500
Folks... Roger's post..below...raises an interesting question...which comes AFTER his post: Looking for some 9913-flex or Lmr-400 ultra-flex. About 700 to 1000 ft. I won't let 9913 near my tower<:-))
/archives//html/Towertalk/2004-12/msg00398.html (8,406 bytes)

145. [TowerTalk] coax in conduit (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Mon, 20 Dec 2004 12:52:30 -0500
I agree that it's preferrable to run cables in conduit. But how do you do that, when the antenna is 200' up a hill, and 350 horizontally away, with portions of shear rock ledge exposed, and a 60 degr
/archives//html/Towertalk/2004-12/msg00402.html (7,384 bytes)

146. [TowerTalk] Kinstar (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Thu, 23 Dec 2004 13:50:18 -0500
Gentle-talkians: Kinstar's use of 4 wires will tend to lower the Q of the system, widening bandwidth. This is often an issue with directional arrays. There is nothing new in this technique...it simpl
/archives//html/Towertalk/2004-12/msg00452.html (7,417 bytes)

147. [TowerTalk] tower pics (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sat, 25 Dec 2004 14:02:31 -0500
To echo Ken's comments about pictures of OTHER towers... what you should do is trot out your trusty digital camera, and take pictures of the views of the tower site FROM THE VISIBLE NEIGHBORS LOCATIO
/archives//html/Towertalk/2004-12/msg00487.html (8,288 bytes)

148. [TowerTalk] 130mph rohn 25G (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Wed, 29 Dec 2004 03:30:03 -0500
TT: Note Mike's msg, below, and my comments below that. N2EA: Actually a 40ft R25 tower bracketed at 8' would probably handle 130 MPH with no antennas installed. When I ran the calcs for my 34ft R25
/archives//html/Towertalk/2004-12/msg00547.html (8,963 bytes)

149. [TowerTalk] insurance and towers (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Wed, 29 Dec 2004 03:34:54 -0500
TT: In the course of commenting on tower ratings, I realized that I hadn't seen a post on insurance. Or if I had, I've forgotten. In the US, in the post-9/11 environment, the insurance industry has b
/archives//html/Towertalk/2004-12/msg00548.html (8,700 bytes)

150. [TowerTalk] insurance (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Wed, 29 Dec 2004 10:53:09 -0500
In response to the thread about towers being covered.... The "standard" HO-3 form policy covers accessory structures. These are typically thought to be garages and sheds, but include any accessory st
/archives//html/Towertalk/2004-12/msg00562.html (7,698 bytes)

151. [TowerTalk] insurance claims (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Thu, 6 Jan 2005 12:53:03 -0500
Not to beat a dead horse, but Chuck suggested taking guidance from his (your) insurance agent. Good advice, but maybe not sufficient. I DID that, in the Vermont circumstances I mentioned earlier, and
/archives//html/Towertalk/2005-01/msg00159.html (7,274 bytes)

152. [TowerTalk] Unauthorized port access... (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sat, 8 Jan 2005 09:59:52 -0500
It may not be that qsl.net has a problem. There are web search robots which are able to trap IP addresses from traffic on BB sites like qsl.net, qrz.net, Arrl.net, etc. In order to block them, you wo
/archives//html/Towertalk/2005-01/msg00219.html (8,780 bytes)

153. [TowerTalk] kt34xa torque balancing (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sat, 8 Jan 2005 11:34:57 -0500
TT: I would recommend a trimtab which clamped around the boom, and permits it to be slid in or out, to fine-tune the solution. I did this with an XA 15 years ago, have long since lost the calculation
/archives//html/Towertalk/2005-01/msg00223.html (9,429 bytes)

154. [TowerTalk] kt34xa torque balancing (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sat, 8 Jan 2005 18:28:12 -0500
TT: A computer program will not estimate drag from the complex shape of the kt34 traps any better than a seat-of-the-pants human. Without a doubt, the program which W0UN suggests will do much of what
/archives//html/Towertalk/2005-01/msg00236.html (8,260 bytes)

155. [TowerTalk] Torque balancing...agreement! (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sun, 9 Jan 2005 13:36:09 -0500
We read and learn. w0un and I are not in total agreement, but he's a bright and reasonable guy...and it's obvious that the problem is communications. We're describing the elephant from different appe
/archives//html/Towertalk/2005-01/msg00256.html (8,805 bytes)

156. [TowerTalk] R8 radials (score: 1)
Author: jimjarvis@comcast.net
Date: Thu, 13 Jan 2005 19:31:57 +0000
Fernando, TT: I have run A/B comparisons with an R8 mounted on top of a tower @ 60', against a full sized, elevated 40m GP, the base of which was elevated by 60'. The antennas were 10 wavelengths apa
/archives//html/Towertalk/2005-01/msg00444.html (7,435 bytes)

157. [TowerTalk] Yagi windload, yagi torque balancing,and why airplanes fly (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sat, 15 Jan 2005 15:39:04 -0500
With thanks to Dick Weber, who was kind enough to forward me copies of his paper on yagi windloading (communications quarterly, Spring 1993). Brosnahan is right. I stand corrected. Those of you who f
/archives//html/Towertalk/2005-01/msg00573.html (8,715 bytes)

158. [TowerTalk] There's 'ground', and then there's 'ground' (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sun, 16 Jan 2005 06:56:10 -0500
1) I think you'll find that all unibody constructed cars have serious anti-corrosion coatings applied, after welding. Bolted-on components are almost never electrically connected, unless there is a r
/archives//html/Towertalk/2005-01/msg00596.html (8,867 bytes)

159. [TowerTalk] logic ground & audio ground (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sun, 16 Jan 2005 16:29:12 -0500
There were a couple of posts on this topic, so I won't direct this at anyone in particular. 1) You will not see logic ground in your radio. It exists internally, and is carefully controlled to keep E
/archives//html/Towertalk/2005-01/msg00625.html (7,773 bytes)

160. [TowerTalk] Ground...and talking around it (score: 1)
Author: "Jim Jarvis" <jimjarvis@comcast.net>
Date: Sun, 16 Jan 2005 18:44:10 -0500
Guys... A few true-isms: 1) coax braid will not handle lightning currents. It will evaporate before draining a strike. Ground strap is better, out of the box, but after corosion, and depending on how
/archives//html/Towertalk/2005-01/msg00630.html (8,064 bytes)

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