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Total 265 documents matching your query.

41. Re: [TowerTalk] LP v SteppIR (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sat, 23 Jan 2010 14:39:33 -0500
Hi Marty - Good info. The only exception I might caution on - I'm not sure about Tennadyne but I think some LP designs are for a 200 ohm feed point with a 4:1 balun. If that's the case a 200 ohm open
/archives//html/Towertalk/2010-01/msg00589.html (10,396 bytes)

42. Re: [TowerTalk] LP v SteppIR (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sat, 23 Jan 2010 15:10:31 -0500
Hi Joe - Mostly valid points. However, smaller diameter elements can be strong. The 45 foot linear loaded elements in my design are only 1 5/8 " O.D. . They are "plytubular" design with up to four in
/archives//html/Towertalk/2010-01/msg00593.html (11,290 bytes)

43. Re: [TowerTalk] steppir v. lpda (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sat, 23 Jan 2010 16:23:11 -0500
For the umpteenth time,ehy not make up 200 ohm line,using 1/4" copper tubing, on standoffs to keep aay from the boom, placing the balun back at the mast, where it is accessible. -- Original Message -
/archives//html/Towertalk/2010-01/msg00600.html (9,324 bytes)

44. Re: [TowerTalk] LP v SteppIR (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sat, 23 Jan 2010 16:37:36 -0500
Sure, there lots of ways to skin the cat - thicker wall, larger diameter, plytubular - all with +'s and -'s. All can get you to higher bending moment resistance. I did my own stree analysis, so did n
/archives//html/Towertalk/2010-01/msg00601.html (13,932 bytes)

45. Re: [TowerTalk] lp V stepIR (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sat, 23 Jan 2010 19:36:59 -0500
Another side thought on LP's - Obviously not a consideration v the SteppIR, but the LP is pretty straight forward for ththe DYI guy who wants to build his own. Somewhat of a carryover from before the
/archives//html/Towertalk/2010-01/msg00612.html (16,981 bytes)

46. Re: [TowerTalk] lp V stepIR (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sat, 23 Jan 2010 23:36:42 -0500
Hi Steve - I'm replying just to you because much of the gang may be tired of reading this thread. I'm glad to hear you're thinking/planing to do an LP before long. I'm sure you'll be happy with it. A
/archives//html/Towertalk/2010-01/msg00631.html (16,120 bytes)

47. Re: [TowerTalk] "Roll your own" tower/mast. (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sat, 23 Jan 2010 23:51:07 -0500
I can remember back in the 60's visiting a guy down in the Boston area who had built a self-supporting 100 foot wooden tower with an "inside" stairway and platform at the top with railing and room fo
/archives//html/Towertalk/2010-01/msg00632.html (11,548 bytes)

48. Re: [TowerTalk] lp V stepIR (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sat, 23 Jan 2010 23:52:48 -0500
or TH-11 ? _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.com http://lists.contesting.com/mailman/listinfo
/archives//html/Towertalk/2010-01/msg00633.html (10,519 bytes)

49. Re: [TowerTalk] lp V stepIR (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sun, 24 Jan 2010 14:10:01 -0500
RE stacked LP's It was indeed W1KW (Not K1KW) who had two very large stacked LP's. I have just corresponded with Chuck and will request his permission to share what he had to say. Gene / W2LU _______
/archives//html/Towertalk/2010-01/msg00664.html (10,887 bytes)

50. Re: [TowerTalk] lp V stepIR (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sun, 24 Jan 2010 14:59:28 -0500
Sorry guys, I miss spoke again it is K as in KKKK K1KW - Chuck, NOT W1KW. Gene / W2LU _______________________________________________ _______________________________________________ TowerTalk mailing
/archives//html/Towertalk/2010-01/msg00673.html (10,181 bytes)

51. Re: [TowerTalk] "Roll your own" tower/mast. (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sun, 24 Jan 2010 23:32:45 -0500
Yea, I spent a summer on a line crew and we had a rule to wear a Levi jacket no matter ho hot it was.- Belt, Hooks, Jacket, Long Pants and no rings or watches. Not a bad idea on metal towers either.
/archives//html/Towertalk/2010-01/msg00701.html (12,545 bytes)

52. Re: [TowerTalk] sched 80 mast (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Wed, 27 Jan 2010 10:44:46 -0500
How about repetitive gusts and possible resonance? But remember the Sam Harris / W1FZ philosophy - "If it stays up more than two winters it was over designed". -- Original Message -- From: "Jim Thoms
/archives//html/Towertalk/2010-01/msg00818.html (10,279 bytes)

53. Re: [TowerTalk] sched 80 mast (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Wed, 27 Jan 2010 17:47:45 -0500
Ok Dick, if it makes you feel better, I stand corrected. _______________________________________________ _______________________________________________ TowerTalk mailing list TowerTalk@contesting.co
/archives//html/Towertalk/2010-01/msg00827.html (12,766 bytes)

54. Re: [TowerTalk] AB-1339 Mast (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Mon, 1 Feb 2010 16:02:02 -0500
Reminds of the time I saw a "material controller" with aa large container and a 4 x 4 beating up a half a dozen PL-172A' s for the same reason. Enough to bring a grown ham to tears. Yes, our benevole
/archives//html/Towertalk/2010-02/msg00010.html (9,676 bytes)

55. Re: [TowerTalk] Using Stubs to Reject Harmonics (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Tue, 2 Feb 2010 15:23:45 -0500
I think this may be why I designed my amp with a Pi L output circuit, although I'm not a big contest station and have never really measured the harmonic output. Gene ./ W2LU _________________________
/archives//html/Towertalk/2010-02/msg00030.html (11,438 bytes)

56. Re: [TowerTalk] Best Coax for Crank Ups...Flex...& Drip Loops-DAVIS RFResponse (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sat, 27 Feb 2010 14:09:24 -0500
I haven't been following this coax/tower thread to closely but it just struck me. What do all the extra loops around the tower do to you if you're using the tower as a tuned vertical? and if the shie
/archives//html/Towertalk/2010-02/msg00671.html (13,560 bytes)

57. Re: [TowerTalk] N - clamp style connector (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Wed, 10 Mar 2010 20:28:43 -0500
I hear that some boaters use heatshrink tubing that has a sealer glue inside it that keeps water out. -- Original Message -- From: <TexasRF@aol.com> To: <w4lde@numail.org>; <towertalk@contesting.com>
/archives//html/Towertalk/2010-03/msg00091.html (14,636 bytes)

58. Re: [TowerTalk] N - clamp style connector (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Wed, 10 Mar 2010 22:03:43 -0500
I realize that there are many out there who are more "pure" than I and insist on Type N even for HF. Perhaps I have just been lucky, but I have had good luck just using good quality UHF connectors wi
/archives//html/Towertalk/2010-03/msg00100.html (16,896 bytes)

59. Re: [TowerTalk] tower & antenna project questions (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Thu, 11 Mar 2010 18:17:47 -0500
Hi Eric - Sounds like a real firat class installation. Just wondering if / why you may have ruled out relays for antenna selection and maybe just a pimary and a backup for coax cables. For the price
/archives//html/Towertalk/2010-03/msg00118.html (14,687 bytes)

60. [TowerTalk] Prop Pitch Motor (score: 1)
Author: "Gene Fuller" <w2lu@rochester.rr.com>
Date: Sun, 14 Mar 2010 22:58:29 -0400
What is the maximum DC voltage used successfully/recommended for one of the "small" PPM's ? What speed was accomplished and how was the brush life at that voltage ? I 'm building a power supply to pu
/archives//html/Towertalk/2010-03/msg00240.html (7,822 bytes)

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