Mail Archive Search: <+subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Irrigation\s+pipe\s+vertical\s*$/>

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[TowerTalk\]\s+Irrigation\s+pipe\s+vertical\s*$/: 8 ]

Total 8 documents matching your query.

1. Re: [TowerTalk] Irrigation pipe vertical (score: 1): Author: Red Haines <redhaines@acegroup.cc>; Date: Sat, 01 Dec 2007 12:01:13 -0600; I've also used 3" irrigation pipe supported in the 3" PVC. I've telescoped 2" pipe inside the 3" pipe with aluminum bushings that I turned, to make a number of adjustable and portable vertical elemen; /archives//html/Towertalk/2007-12/msg00011.html (8,312 bytes)
2. Re: [TowerTalk] Irrigation pipe vertical (score: 1): Author: Red Haines <redhaines@acegroup.cc>; Date: Sat, 01 Dec 2007 12:51:35 -0600; Hi, Dick; You ask a very pertinent question, especially for those who might use irrigation pipe for portable antennas. The answer is no, aluminum irrigation pipe is lightweight. I estimate that the 3; /archives//html/Towertalk/2007-12/msg00013.html (7,443 bytes)
3. Re: [TowerTalk] Irrigation pipe vertical (score: 1): Author: Red Haines <redhaines@acegroup.cc>; Date: Sat, 01 Dec 2007 13:10:01 -0600; Hi, Dave; I make the bushings from a piece of 3" aluminum tubing with 1/2" wall thickness. I cut off about a 1" length for each bushing. I turn one bushing for a sliding fit outside the 2" pipe. That; /archives//html/Towertalk/2007-12/msg00016.html (9,564 bytes)
4. Re: [TowerTalk] Irrigation pipe vertical (score: 1): Author: "Dan Hearn" <dhearn@air-pipe.com>; Date: Sat, 1 Dec 2007 11:33:08 -0800; I have made some bushings by cutting hacksaw slots lengthwise on short pieces of tubing and squeezing it together to insert. I picked up a beam from the estate of W7BUD which had a piece of 3 inch ir; /archives//html/Towertalk/2007-12/msg00018.html (10,784 bytes)
5. Re: [TowerTalk] Irrigation pipe vertical (score: 1): Author: "Rick Karlquist" <richard@karlquist.com>; Date: Sat, 1 Dec 2007 11:34:53 -0800 (PST); 30 ft of 3 inch 0.050 inch wall (the standard) weights 16.5 lbs. It is very easy to handle, but you need the bottom anchored to push it up (you can't stand it on its end "free hand" unless you are ve; /archives//html/Towertalk/2007-12/msg00019.html (9,553 bytes)
6. Re: [TowerTalk] Irrigation pipe vertical (score: 1): Author: "WA3GIN" <wa3gin@comcast.net>; Date: Sat, 1 Dec 2007 14:59:12 -0500; Does anyone know what the resonant freq. is of the 30ft of 3" tubing without the addition of a top hat? Thanks, dave wa3gin -- Original Message -- From: "Rick Karlquist" <richard@karlquist.com> To: "; /archives//html/Towertalk/2007-12/msg00020.html (10,324 bytes)
7. Re: [TowerTalk] Irrigation pipe vertical (score: 1): Author: David Gilbert <xdavid@cis-broadband.com>; Date: Sat, 01 Dec 2007 14:17:03 -0700; It probably depends somewhat on your radial/ground system, but I get about 7.84 MHz with EZNEC. Dave AB7E _______________________________________________ _____________________________________________; /archives//html/Towertalk/2007-12/msg00022.html (8,070 bytes)
8. Re: [TowerTalk] Irrigation pipe vertical (score: 1): Author: Red Haines <redhaines@acegroup.cc>; Date: Sun, 02 Dec 2007 09:50:25 -0600; EZNEC predicts the resonant frequency is near 7.9 MHz. Adding a top hat of 4 spokes 2.5 feet long lowers it to near 7.1 MHz. Adding 2 spokes 2.5 feet long brings it near 7.4 MHz 73 de Red ___________; /archives//html/Towertalk/2007-12/msg00027.html (8,123 bytes)

Current List: 1 - 8
Page: [1]