Search String: Display: Description: Sort:

Results:

References: [ +from:VE5RA@sasktel.net: 318 ]

Total 318 documents matching your query.

41. Re: [TowerTalk] When a Yagi Loses an Element (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sat, 02 Apr 2005 19:23:52 -0600
Bill, This is how I would approach this challenge. Years ago I had the boom break on a 4L 40M KLM. What held it together was the truss. The entire broken antenna (2 pieces) was removed by one person,
/archives//html/Towertalk/2005-04/msg00072.html (8,919 bytes)

42. Re: [TowerTalk] When a Yagi Loses an Element (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sat, 02 Apr 2005 19:34:07 -0600
Revised - Sri should have said boom to mounting plate clamps instead of boom to mast clamps. Bill, This is how I would approach this challenge. Years ago I had the boom break on a 4L 40M KLM. What he
/archives//html/Towertalk/2005-04/msg00073.html (8,764 bytes)

43. Re: [TowerTalk] When a Yagi Looses an Element (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Mon, 04 Apr 2005 08:35:07 -0600
Bill, When you climb up, take along some rope, a pulley, and some clamps also. Unless you have two strong tower workers, you may find the antenna to be too unbalanced to pull through the boom to mast
/archives//html/Towertalk/2005-04/msg00116.html (8,856 bytes)

44. Re: [TowerTalk] Guying Self-Supp. Towers (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Fri, 08 Apr 2005 13:43:22 -0600
How many of you "experts" have had first hand experience in guying self supporting towers?? Look in the Delhi Metal Products catalog and you will see that they use the same configurations (base, sect
/archives//html/Towertalk/2005-04/msg00216.html (9,469 bytes)

45. Re: [TowerTalk] Guying Self-Supp. Towers (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Fri, 08 Apr 2005 22:27:43 -0600
Steve, I took me less than 5 minutes to Yahoo the site at http://www.smi-elec.com/towers/dmxmd_hd.htm BTW there are many, many Delhi towers in Canada. Do what the manufacturer says...GUY THE TOWER! D
/archives//html/Towertalk/2005-04/msg00242.html (9,006 bytes)

46. Re: [TowerTalk] Guying Self-Supp. Towers (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sat, 09 Apr 2005 09:26:57 -0600
Larry, The specifications don't say what wind speed these towers will stand unguyed. My advice based on experience is to guy the tower unless your square footage is much less than the maximum specifi
/archives//html/Towertalk/2005-04/msg00259.html (9,208 bytes)

47. Re: [TowerTalk] Guying a self-supporting tower (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sat, 09 Apr 2005 14:49:23 -0600
We are finally getting a technical discussion on this topic. Certainly leg compression will be increased with properly tensioned guys. I have believed that tower failure (guys remain intact) will be
/archives//html/Towertalk/2005-04/msg00277.html (9,998 bytes)

48. Re: [TowerTalk] Guying a self-supporting tower (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sat, 09 Apr 2005 20:51:36 -0600
I have to agree. So far nobody has produced any facts or manufacturer direction that a three legged self-supporting tower should not be guyed. Doug/VA5DX _____________________________________________
/archives//html/Towertalk/2005-04/msg00301.html (9,541 bytes)

49. Re: [TowerTalk] Guying a self-supporting tower - Yes (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sat, 09 Apr 2005 21:15:37 -0600
No. Let's take this topic to a sensible conclusion. Unless we do reach a conclusion this topic will come up again with opinion vs experience vs fact vs manufacturers instructions vs guess vs ..... Do
/archives//html/Towertalk/2005-04/msg00302.html (9,007 bytes)

50. Re: [TowerTalk] Guying a self-supporting tower - Yes (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sun, 10 Apr 2005 09:14:45 -0600
I am willing to give the 'NO Group' a bit more time to present a case before coming to a conclusion. No matter how flat a pancake is - there are still two sides. What do you do in the absence of your
/archives//html/Towertalk/2005-04/msg00309.html (10,209 bytes)

51. Re: [TowerTalk] Guying a self-supporting tower - Yes (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sun, 10 Apr 2005 13:47:28 -0600
At one time I had the 4L 40m KLM at 132 feet on a Delhi guyed tower. At another time I had a wind come through here that broke the boom of the KLM but did no damage to the Delhi tower. That's a 42 fo
/archives//html/Towertalk/2005-04/msg00327.html (11,344 bytes)

52. Re: [TowerTalk] Guying a self-supporting tower - Yes (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sun, 10 Apr 2005 22:29:39 -0600
At one time I had the 4L 40m KLM at 132 feet on a Delhi guyed tower. At another time I had a wind come through here that broke the boom of the KLM but did no damage to the Delhi tower. That's a 42 fo
/archives//html/Towertalk/2005-04/msg00345.html (7,865 bytes)

53. Re: [TowerTalk] Guying a self-supporting tower - Yes (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Mon, 11 Apr 2005 08:59:20 -0600
Is a single qualified mechanical engineer equal to God? Did this engineer achieve 100% on every one of his/her exams from a respected college? Can a lot of faith be placed in a single engineer's calc
/archives//html/Towertalk/2005-04/msg00365.html (8,030 bytes)

54. Re: [TowerTalk] Guying a self-supporting tower - Yes (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Mon, 11 Apr 2005 11:55:04 -0600
Well said Steve. It has been reassuring to see a number of individuals, including yourself, privately and on this reflector, challenge this myth that sensible guying of a three legged self supporting
/archives//html/Towertalk/2005-04/msg00376.html (9,907 bytes)

55. [TowerTalk] Rohn HDBX48 failure (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Wed, 13 Apr 2005 12:03:27 -0600
Interesting. I see that the specs. for a HDBX48 are a 18 sq. ft antenna max. at point 3 ft above the apex of the tower for a 70.7 mph wind . With a note: "antennas developing a large twisting moment
/archives//html/Towertalk/2005-04/msg00430.html (11,597 bytes)

56. Re: [TowerTalk] Real numbers for Rohn BX-64 Re: guying (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Wed, 13 Apr 2005 12:12:54 -0600
Dave, You have a very good suggestion that has not been brought up before. Mount the rotor lower in the tower or at the bottom to reduce the twisting action. Excellent. -- Doug Renwick VA5DX PO Box 5
/archives//html/Towertalk/2005-04/msg00431.html (11,153 bytes)

57. Re: [TowerTalk] Rohn HDBX48 failure (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Wed, 13 Apr 2005 21:09:40 -0600
Thanks Chuck for the details. From your description the destruction was initiated by a guy failure, possibly the guy sawing through the tower leg. As Jim notes, the use of a proper guy bracket with a
/archives//html/Towertalk/2005-04/msg00460.html (12,469 bytes)

58. Re: [TowerTalk] Tower Down Due To Cindy Tell Ne What You Think (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Fri, 15 Jul 2005 09:12:49 -0600
Regardless of what anyone believes, it does not change the fact that there is a God. Doug -- Doug Renwick VA5DX PO Box 50, Clavet, Saskatchewan, Canada S0K 0Y0 VE5RA@sasktel.net First VE5 5BDXCC, 160
/archives//html/Towertalk/2005-07/msg00366.html (9,564 bytes)

59. Re: [TowerTalk] Rotator Wire Vendor (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Thu, 01 Sep 2005 13:44:01 -0600
Go to your local Home Depot or Walmart and buy a bunch of extension cords...2 or 3 wire usually 16 gauge. Use the plugs to connect or cut the plugs off and join the wires for the distance required. I
/archives//html/Towertalk/2005-09/msg00036.html (8,250 bytes)

60. Re: [TowerTalk] Static discharge Cushcraft XM240 during storms (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Fri, 09 Sep 2005 10:28:59 -0600
You might try mounting another beam antenna above the XM240 to take the lightning hits. Doug -- Doug Renwick VA5DX PO Box 50, Clavet, Saskatchewan, Canada S0K 0Y0 VE5RA@sasktel.net First VE5 5BDXCC,
/archives//html/Towertalk/2005-09/msg00235.html (8,414 bytes)


This search system is powered by Namazu