Mail Archive Search: <+from:jimjarvis@comcast.net>

Results:

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

Total 326 documents matching your query.

21. [TowerTalk] da BBC boids. (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Sat, 23 Aug 2003 07:19:46 -0000; I recall a BBC report a few years ago...also picked up by the NY Times, btw, which indicated that the common house cat in the UK was the greatest single predation source for british songbirds. Moreov; /archives//html/Towertalk/2003-08/msg00777.html (7,754 bytes)
22. [TowerTalk] falling birds (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Sat, 23 Aug 2003 08:31:17 -0000; Dorothy and Toto should be wearing hardhats, if, indeed this is Kansas? I messaged outlook@bbc.co.uk, to see what they could come up with. Wasn't able to get BBCi to replay yesterday's programme. n2e; /archives//html/Towertalk/2003-08/msg00779.html (6,663 bytes)
23. [TowerTalk] ABC's of tower birdkills (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Sat, 23 Aug 2003 13:23:42 -0000; K1IR provided the following, valuable, site/insight: The American Bird Conservancy has done research and provides some information and a strong point of view on this topic. http://www.abcbirds.org/po; /archives//html/Towertalk/2003-08/msg00787.html (7,315 bytes)
24. [TowerTalk] sheet bends, carrick bends, and dead sparrows (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Tue, 26 Aug 2003 00:58:30 -0000; TT never ceases to amaze me. After 50 years of sailing (no kidding) I learned a new knot. Not sure how I'll use it, just yet...but the whole discussion about a doubled figure 8 knot....and the site r; /archives//html/Towertalk/2003-08/msg00839.html (8,071 bytes)
25. [TowerTalk] MOV's (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Wed, 27 Aug 2003 16:52:55 -0000; In deep, dark history, I did some characterization work with MOV's. They tend to fail with accumulated energy. Polarity matters. The ones I played with could take 4 or 5 shots in one direction....an; /archives//html/Towertalk/2003-08/msg00869.html (7,696 bytes)
26. [TowerTalk] pinning masts/rotor clamps--yaesu (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Sun, 31 Aug 2003 01:14:41 -0000; Guys.... Unless you can do the analysis and be sure, it never pays to second guess design engineers. Usually, you don't have the data to support a superior decision. Yaesu very clearly uses aluminum; /archives//html/Towertalk/2003-08/msg00928.html (7,769 bytes)
27. [TowerTalk] Tower zoning application (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Tue, 2 Sep 2003 20:54:11 -0000; David, I've kept my comments off the reflector thusfar...but the full language of your proposed letter showed up today, with other comments, and I felt compelled to comment. 1) Never forget that what; /archives//html/Towertalk/2003-09/msg00029.html (8,594 bytes)
28. [TowerTalk] towers on Mercer Island (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Tue, 2 Sep 2003 23:55:43 -0000; You guys on Mercer Island need to get the hell together, and stop communicating on the reflector. Not that I (we?) don't want to see your wrangling...but it's a lousy way to prosecute your battle. Ge; /archives//html/Towertalk/2003-09/msg00043.html (7,799 bytes)
29. [TowerTalk] Tower mounted power amplifier (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Thu, 4 Sep 2003 11:55:40 -0000; There...back on thread... (the devil made me do it) So, if your big momma Power Amp were mounted at the antenna feedpoint, at the top of your tower, you could put 1500 watts into your antenna. What,; /archives//html/Towertalk/2003-09/msg00086.html (7,296 bytes)
30. [TowerTalk] digging safety (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Sun, 7 Sep 2003 12:00:52 -0000; Two comments are worth repeating, for benefit of anyone contemplating hand-digging a foundation: Think twice, or more, before you go into a deep hole. Plan your escape for when, not if, it collapses.; /archives//html/Towertalk/2003-09/msg00180.html (7,609 bytes)
31. [TowerTalk] daily TT digest? (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Thu, 11 Sep 2003 19:04:49 -0000; Is it possible to schedule only a daily digest of TT submissions? Getting 4-6 a day is a bit much. N2EA _______________________________________________ See: http://www.mscomputer.com for "Self Suppor; /archives//html/Towertalk/2003-09/msg00324.html (6,987 bytes)
32. [TowerTalk] wires in trees (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Fri, 12 Sep 2003 12:28:38 -0000; Undoubtedly true, Tim, but very hard to implement at height. I like w9gtc/1's approach with cinderblocks as counterweights, and pulleys as high as you can go. Unfortunately, when I commissioned the a; /archives//html/Towertalk/2003-09/msg00335.html (8,559 bytes)
33. [TowerTalk] wires in trees (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Sat, 13 Sep 2003 21:40:43 -0000; Since there appears to be interest.... I use a 25lb compound bow to loft fiberglass fishing arrows, using a gametracker. (wa2sry and I think alike!). I replaced the tip of the fishing arrow with a he; /archives//html/Towertalk/2003-09/msg00366.html (8,808 bytes)
34. [TowerTalk] tiewrapping rebar (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Sun, 21 Sep 2003 19:26:44 -0000; Been following this thread with some curiosity. Rebar is normally wire-wrapped, to hold it in place until the concrete forms around it. Somewhere in here, someone discussed GROUNDING the rebar...and; /archives//html/Towertalk/2003-09/msg00533.html (7,645 bytes)
35. [TowerTalk] OWL? (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Thu, 25 Sep 2003 12:45:51 -0000; TT: I'm looking for a source of flexible open wire line, or of components to make same. Ideas sought. Radioworks has a line made from #14 stranded copper-clad. That's a possibility, requiring no work; /archives//html/Towertalk/2003-09/msg00593.html (7,329 bytes)
36. [TowerTalk] BPL/FCC/Power Industry (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Thu, 25 Sep 2003 16:18:39 -0000; Folks...this is topical, albeit somewhat off the topic of this reflector. I heard both Abernathy's comments and those of Michael Powell, at a think tank session in Colorado two weeks ago, courtesy of; /archives//html/Towertalk/2003-09/msg00599.html (8,071 bytes)
37. [TowerTalk] bows 'n trees (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Mon, 6 Oct 2003 00:45:35 -0000; I am the culprit who suggested that simple recurve bows were appropriate, and that compound bows tended to be more power than necessary, and tended to break line. That said, I now use a 'gametracker'; /archives//html/Towertalk/2003-10/msg00124.html (8,125 bytes)
38. [TowerTalk] insulating rohn 25g (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Thu, 16 Oct 2003 14:45:47 -0000; Go to the Rohn website and look for the insulated sections. Then call Texas Towers and see if they can order them for you. I doubt they would have them in stock. (never know til you ask, tho). Makes; /archives//html/Towertalk/2003-10/msg00362.html (7,340 bytes)
39. [TowerTalk] lightning ground & cet. (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Tue, 21 Oct 2003 21:37:11 -0000; Here we go again...but it was recently asked. 1) Braid, as k3na says, will corrode and quickly become useless. 2) Surface area is important, both for RF grounds, and for lightning dissipation grounds; /archives//html/Towertalk/2003-10/msg00495.html (8,565 bytes)
40. [TowerTalk] SteppIR/ HyGain/ MFJ (score: 1): Author: "Jim Jarvis" <jimjarvis@comcast.net>; Date: Tue, 4 Nov 2003 18:39:38 -0000; W2UP's reluctance to adopt the new technology notwithstanding, I had my 3 el SteppIR up through last winter in Vermont. Snow, Ice, -20F. Performed flawlessly. My rotor failed,though, and the 180degre; /archives//html/Towertalk/2003-11/msg00081.html (7,824 bytes)

Current List: 21 - 40
Page: [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11] [12] [13] [14] [15] [16] [17]