Search String: Display: Description: Sort:

Results:

References: [ +from:k6ll@juno.com: 277 ]

Total 277 documents matching your query.

41. [TowerTalk] 80m Dipole ssb/cw switching (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Tue, 13 Nov 2001 18:56:34 +0000
My alligator clips have been out there for about 15 years. They are totally rusty, but this is a low current part of the antenna so they continue to work ok. One of these days the spring will break,
/archives//html/Towertalk/2001-11/msg00319.html (10,097 bytes)

42. [TowerTalk] Rohn 25G Fold Over Tower (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Sat, 24 Nov 2001 09:55:17 +0000
I've been using a tower identical to yours for the last 23 years. Follow the instructions in the Rohn catalog: The four 3/16" EHS guy wires should be pretensioned to 400 pounds. That sounds like a lo
/archives//html/Towertalk/2001-11/msg00489.html (8,492 bytes)

43. [TowerTalk] Ham IV rotor control box (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Wed, 28 Nov 2001 11:05:34 +0000
My Tailtwister manual says .4 ohm. I think your manual has a typo. Dave Hachadorian, K6LL Yuma, AZ K6LL@juno.com List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems, Trylon Titan to
/archives//html/Towertalk/2001-11/msg00557.html (10,455 bytes)

44. [TowerTalk] Stacking quandry (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Wed, 17 Oct 2001 13:49:58 +0000
The WX0B web site has a procedure for adjusting the phasing of dissimilar antennas. It involves a dual-trace scope and test transmissions from a nearby ham. Dave Hachadorian, K6LL Yuma, AZ K6LL@juno.
/archives//html/Towertalk/2001-10/msg00344.html (7,216 bytes)

45. [TowerTalk] High or Low (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Fri, 19 Oct 2001 10:36:00 +0000
On Fri, 19 Oct 2001 11:45:06 -0500 Tom Martin <tmartin@chartermi.net> writes: Here is how I would answer that question. Go to the arrl's web site and download N6BV's latest elevation angle statistics
/archives//html/Towertalk/2001-10/msg00358.html (8,854 bytes)

46. [TowerTalk] Re: Crappy PL259's (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Tue, 23 Oct 2001 10:38:49 +0000
My observations on soldering PL-259's: 1. Use Amphenols. I have seen too many goofy mechanical discrepancies on the off brands (thin/fat/long center pins, teflon insulators that pull out, insulators
/archives//html/Towertalk/2001-10/msg00468.html (9,773 bytes)

47. [TowerTalk] guy rod angle (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Sun, 2 Sep 2001 16:23:40 +0000
Just a guess: The angle is probably optimized for when the wind is blowing, with much of the windload at the top. Dave Hachadorian, K6LL Big Bear Lake, CA K6LL@juno.com List Sponsored by AN Wireless:
/archives//html/Towertalk/2001-09/msg00072.html (8,413 bytes)

48. [TowerTalk] Another Tower Option (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Thu, 6 Sep 2001 08:40:04 +0000
On Thu, 6 Sep 2001 07:23:34 -0500 Jon Ogden <jon.ogden@cain-forlaw.com> writes: There are crank-ups and there are CRANK-UPS. It depends on which crank-up you are looking at. If it's a TX-455 or equiv
/archives//html/Towertalk/2001-09/msg00220.html (7,626 bytes)

49. [TowerTalk] How accurate is EZNEC? (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Thu, 6 Sep 2001 14:55:43 +0000
There's a pretty easy test for interaction on yagi antennas, once they are installed. The yagi characteristic most sensitive to interaction is f/b ratio. f/b deteriorates much more than forward gain,
/archives//html/Towertalk/2001-09/msg00243.html (8,774 bytes)

50. [TowerTalk] Re: [AMPS] True Or Not True #2 (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Thu, 6 Sep 2001 16:17:47 +0000
On Thu, 06 Sep 2001 15:46:36 -0700 Stu Greene <wa2moe@doitnow.com> writes: All of this speculation could be solved with an easy experiment. Have a ham across town send you a very weak signal, so weak
/archives//html/Towertalk/2001-09/msg00254.html (8,867 bytes)

51. [TowerTalk] Rohn Tilt-over Questions (score: 1)
Author: k6ll@juno.com (David O Hachadorian)
Date: Wed, 29 Aug 2001 09:34:31 +0000
"Antenna with large booms or elements used on Rohn 'fold-over' towers should always have additional guy at tower apex." So, with two sets of guys: 130 pounds dead weight at apex 13.3 sq ft windload a
/archives//html/Towertalk/2001-08/msg00653.html (7,857 bytes)

52. [TowerTalk] Who's on top? (score: 1)
Author: k6ll@juno.com (Dave Hachadorian)
Date: Mon, 9 Jul 2001 06:46:44 +0000
I'd put the antenna with the smallest windload (40) on top. Since the far-field pattern is composed of roughly equal parts of the direct ray and the ground-reflected ray, it doesn't matter if the nea
/archives//html/Towertalk/2001-07/msg00144.html (9,154 bytes)

53. [TowerTalk] Ginpole for 20 foot sections (score: 1)
Author: k6ll@juno.com (Dave Hachadorian)
Date: Thu, 14 Jun 2001 16:11:12 +0000
As nicely stated by N2MG, the gin pole "has to support the entire weight of the load, plus the pull force." For a standard gin pole, with only one pulley at the top, lifting a 300 pound load, the gin
/archives//html/Towertalk/2001-06/msg00331.html (9,074 bytes)

54. [TowerTalk] Tri-Ex/Will-Burt (score: 1)
Author: k6ll@juno.com (Dave Hachadorian)
Date: Tue, 22 May 2001 10:55:26 +0000
What's the deal on Tri-Ex these days? Are the LM-470D and DX-86 still available? I thought Tri-Ex sold out their crankup line of products to Will-Burt. Will-Burt's Website shows only trailer-mounted
/archives//html/Towertalk/2001-05/msg00441.html (7,335 bytes)

55. [TowerTalk] Matching 75 ohm hardline for 3 bands (score: 1)
Author: k6ll@juno.com (Dave Hachadorian)
Date: Sun, 1 Apr 2001 08:20:59 +0000
You can indeed do it this way, but the swr increase may be enough to create problems. This drove us nuts one time at a multiop down in Mexico. We were feeding a TH-6 and a 40-2CD with two 75 ohm hard
/archives//html/Towertalk/2001-04/msg00000.html (7,451 bytes)

56. [TowerTalk] Guy tension (score: 1)
Author: k6ll@juno.com (Dave Hachadorian)
Date: Sun, 1 Apr 2001 08:41:03 +0000
You left something out here. You can't just look at the torque-wrench reading. The harder you pull, the higher the reading. You have to look at how much deflection you get on the fixture. Do you mean
/archives//html/Towertalk/2001-04/msg00001.html (7,206 bytes)

57. [TowerTalk] Anchors unequal distance from base? (score: 1)
Author: k6ll@juno.com (Dave Hachadorian)
Date: Mon, 23 Apr 2001 09:30:13 +0000
On Sun, 22 Apr 2001 09:48:16 -0600 "Steve/n0tu" <n0tu@webaccess.net> writes: You can make small adjustments in the tension of the unequally spaced guy wires, and/or unequal height guy anchors to reac
/archives//html/Towertalk/2001-04/msg00454.html (9,947 bytes)

58. [TowerTalk] C31XR / CC 402CD Question (score: 1)
Author: k6ll@juno.com (Dave Hachadorian)
Date: Tue, 24 Apr 2001 09:04:02 +0000
The 40-2CD works well aligned with a nearby tribander. Mine is only 6 feet above the tribander. The loading coils in the 40-2CD elements move the third harmonic resonance to about 18 Mhz. In fact, th
/archives//html/Towertalk/2001-04/msg00482.html (9,201 bytes)

59. [TowerTalk] C31XR / CC 402CD Question (score: 1)
Author: k6ll@juno.com (Dave Hachadorian)
Date: Wed, 25 Apr 2001 09:01:25 +0000
I did a quick experiment yesterday with another ham a few miles away. The 40-2CD has only two broad lobes, broadside to the elements(6dB BW 120 degrees)on 18 Mhz. There is a sharp null, only a few de
/archives//html/Towertalk/2001-04/msg00518.html (8,891 bytes)

60. [TowerTalk] "Best Value" Freestanding Crank-up? (score: 1)
Author: k6ll@juno.com (Dave Hachadorian)
Date: Wed, 25 Apr 2001 11:29:33 +0000
The Tri-ex LM-470 was a beautiful piece of equipment, and had good 70mph ratings. They also had good engineering support for building permit issues, with PE's licensed in every state. The tiltover fi
/archives//html/Towertalk/2001-04/msg00526.html (8,134 bytes)


This search system is powered by Namazu