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Total 284 documents matching your query.

181. Re: [TowerTalk] ab621 (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Sun, 23 Nov 2008 17:23:04 -0500
N3CW wrote: Hello, I notice on my AB-621 that as you crank up the mast, the full weight of the mast sections, rotator, and antenna is taken up by the winch cable, which loops around a pulley and come
/archives//html/Towertalk/2008-11/msg00596.html (8,269 bytes)

182. [TowerTalk] was: 43' vertical and balun feeding...etc. (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Sun, 23 Nov 2008 20:15:52 -0500
This thread has taken on a creative bent. 1) You wouldn't need a 100w lightbulb in the 5 gallon weather protective cover. 5 or 10 watts would more than do it. And yes, you would want to make sure it
/archives//html/Towertalk/2008-11/msg00611.html (7,831 bytes)

183. Re: [TowerTalk] survey (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Fri, 28 Nov 2008 20:14:16 -0500
Ideal system: N2RM's design-- Stacked monobanders 40-10 on 120' towers, with single monobanders for each band @ 70' for South or closer-in work. Phased verticals on 80 & 160. Multiple beverages. Midr
/archives//html/Towertalk/2008-11/msg00769.html (8,487 bytes)

184. Re: [TowerTalk] quad questions (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Wed, 03 Dec 2008 05:14:39 -0500
Very interesting discussion. When I put my lightning bolt quad up, I was concerned with their system of simply tying all loops together at a common feedpoint. I went so far as to talk with Cebik abou
/archives//html/Towertalk/2008-12/msg00041.html (8,995 bytes)

185. Re: [TowerTalk] 25g questions (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Fri, 12 Dec 2008 12:57:46 -0500
regarding the tilted foundation: Back in my broadcast days, we were putting a new station on the air. We had four 210' rohn 55 towers, in line, on a river bottom pasture. A hurricane hit, just before
/archives//html/Towertalk/2008-12/msg00357.html (7,952 bytes)

186. Re: [TowerTalk] Palmdale antenna ordinance (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Mon, 15 Dec 2008 17:43:32 -0500
First of all, the you tube link is absolute drivel. Second of all, the ham-legal reflector is the place to have an adult discussion about antenna ordinances, not here. Third of all, even the National
/archives//html/Towertalk/2008-12/msg00435.html (7,420 bytes)

187. Re: [TowerTalk] palmdale tower ordinance (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Mon, 15 Dec 2008 18:41:21 -0500
OK, I have been privately chastened for my big mouth on this topic. If I hurt anyone's feelings, I apologize. That wasn't the intent. Let me suggest that if you're serious about fighting what is obvi
/archives//html/Towertalk/2008-12/msg00436.html (7,129 bytes)

188. [TowerTalk] Palmdale CA: The rest of the story (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Fri, 19 Dec 2008 16:05:14 -0500
And now, for the rest of the story... OK, I was cranky about the repeated posts concerning the you-tube video and the Palmdale CA antenna ordinance. I advocated serious professional work, rather than
/archives//html/Towertalk/2008-12/msg00509.html (7,537 bytes)

189. Re: [TowerTalk] retract your retraction (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Fri, 19 Dec 2008 20:12:06 -0500
Language is a wonderful thing. a) I didn't apologize. b) I didn't retract my comments. c) a little crow, properly seasoned, never hurt anyone. I WAS cranky in my first post, even though the point was
/archives//html/Towertalk/2008-12/msg00512.html (6,930 bytes)

190. Re: [TowerTalk] best way of getting a line over a tree (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Wed, 24 Dec 2008 12:52:07 -0500
I know this is an age old question. What is your best recommendation on getting some ropes in the tops of my 80 - 100 FT (25 - 33 M) pine trees ? I have heard a sling shot or bow and arrow can work.
/archives//html/Towertalk/2008-12/msg00598.html (10,305 bytes)

191. Re: [TowerTalk] best way of getting a line over a tree (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Wed, 24 Dec 2008 14:00:08 -0500
Robert, The tennis ball system has an added advantage. It isn't considered a weapon. In some jurisdictions, shooting an arrow or firing a slingshot is considered the same as illegal discharge of a fi
/archives//html/Towertalk/2008-12/msg00608.html (14,265 bytes)

192. Re: [TowerTalk] 40m 4square v. 40m yagi (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Thu, 01 Jan 2009 12:22:40 -0500
I think you'll find that vertical angle distribution of the two antennas is the major factor, with terrain being the obvious uncontrollable issue. 90' is not a particularly good height for a 40m yagi
/archives//html/Towertalk/2009-01/msg00012.html (7,530 bytes)

193. Re: [TowerTalk] BCB intermod (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Sat, 10 Jan 2009 08:27:44 -0500
I wasn't closely following this thread, and the last post doesn't have the original poster's details...or this would be off-reflector. Don't discount the possibility that the intermod is coming from
/archives//html/Towertalk/2009-01/msg00172.html (7,521 bytes)

194. Re: [TowerTalk] question of the day (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Sun, 25 Jan 2009 12:51:39 -0500
I do have one additional "question of the day" and that is if you have had any experience in installing a tailtwister rotator near ground level by running a mast from the top of a Rohn 25 tower about
/archives//html/Towertalk/2009-01/msg00355.html (8,063 bytes)

195. [TowerTalk] 25g & 40m yagi (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Mon, 26 Jan 2009 10:22:57 -0500
Nope. W3GM's rotors were mounted on an accessory shelf at 3 or 4' above ground, to make for easy working height. The yagi was up for well over 15 years, with no problems on the tower, and only a few
/archives//html/Towertalk/2009-01/msg00366.html (7,500 bytes)

196. Re: [TowerTalk] relay lightning protection (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Fri, 30 Jan 2009 20:38:09 -0500
I think I know just enough to know that I don't know very much :-). 73, Mike W4EF............ -0- Jim/N2EA _______________________________________________ ____________________________________________
/archives//html/Towertalk/2009-01/msg00474.html (6,811 bytes)

197. Re: [TowerTalk] Ontario Surplus (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Thu, 05 Feb 2009 13:37:25 -0500
Pete, Haven't spoken with Ben or his wife since last year, June, so I don't know contemporary information. However, Ben has a day job, which requires travel. His wife was answering the phone, when he
/archives//html/Towertalk/2009-02/msg00096.html (8,042 bytes)

198. Re: [TowerTalk] antennas and towers near broadcast stations (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Sat, 14 Feb 2009 17:16:36 -0500
Bottom post... see below: The FCC has without much notice in Amateur circles passed was: "quietly snuck," a poor choice of words, a Rule that will affect nonbroadcast radio licensees including Radio
/archives//html/Towertalk/2009-02/msg00336.html (14,629 bytes)

199. Re: [TowerTalk] am towers (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Sun, 15 Feb 2009 13:01:45 -0500
Cell sites are nothing. An AM array proof of performance has 20 radials, with 10 readings each... out to a distance of 8-10 miles. Lot of labor involved. and that was a lifetime ago... labor isn't an
/archives//html/Towertalk/2009-02/msg00357.html (7,014 bytes)

200. Re: [TowerTalk] am towers (score: 1)
Author: jim Jarvis <jimjarvis@optonline.net>
Date: Mon, 16 Feb 2009 08:15:23 -0500
not what I meant, Don. The tower is substantial. Whatever 'proof' was performed was minimal, if they only charged you $1200: It really depends on the nature of the AM array. If it were an omni situat
/archives//html/Towertalk/2009-02/msg00391.html (9,651 bytes)


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