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Total 318 documents matching your query.

21. Re: [TowerTalk] verticals in woods vs. in a field (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Thu, 16 Sep 2004 09:54:10 -0600
Tom, I appreciate your level headed approach to this subject and many others. There is a tendency to spin opinions into fact either on purpose or by flawed thinking. As an analytical chemist for many
/archives//html/Towertalk/2004-09/msg00314.html (10,742 bytes)

22. Re: [TowerTalk] Slopers, half slopers, (using the tower) (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sat, 25 Sep 2004 21:42:21 -0600
Roger, I use two half slopers on 160M with the feed point at 100 ft and under a number of yagis. One slopes east and the other west and I do have gain in the direction of the slope. More than two hal
/archives//html/Towertalk/2004-09/msg00626.html (9,604 bytes)

23. Re: [TowerTalk] Re: Thrust Bearing Usage (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Mon, 25 Oct 2004 14:00:37 -0600
My experience differs...properly sized thrust bearing side screws ARE used to support the weight of the mast and antennas at my QTH. I have not had any adverse reactions from using this method and it
/archives//html/Towertalk/2004-10/msg00692.html (8,261 bytes)

24. Re: [TowerTalk] Re: Thrust Bearing Usage (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Mon, 25 Oct 2004 15:08:05 -0600
Here we go again...making assumptions. When you are using an undersized thrust bearing I can see your point Kelly. Not everyone is using a CDE (MFJ) Ham or Tailtwister rotor. Have you ever seen the b
/archives//html/Towertalk/2004-10/msg00696.html (10,139 bytes)

25. Re: [TowerTalk] Re: Thrust Bearing Usage (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Tue, 26 Oct 2004 21:19:52 -0600
There you have it...one of the best ways of configuring the mast and rotor. Doug David Robbins K1TTT wrote: On my flat tops I always put a second bearing just for that purpose above the rotor. To kee
/archives//html/Towertalk/2004-10/msg00717.html (9,709 bytes)

26. Re: [TowerTalk] A3 problem (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Tue, 02 Nov 2004 21:36:20 -0600
Tony, I worked on a friends A3 and checked the traps with a dip meter. One trap (can't remember which...doesn't matter) did not dip where it should. If you pull back the inner black cap you will find
/archives//html/Towertalk/2004-11/msg00058.html (9,151 bytes)

27. Re: [TowerTalk] shorty forty (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Fri, 12 Nov 2004 09:01:50 -0600
Has anyone successfully added a CW/SSB relay box to the driven element of the Cushcraft XM240? And if so, how did you do it? Doug Keith Dutson wrote: I have two of the F12 antennas. Both have the rel
/archives//html/Towertalk/2004-11/msg00344.html (8,484 bytes)

28. Re: [TowerTalk] Heathkit HD-1250 (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Wed, 29 Dec 2004 09:38:21 -0600
I have used the HD-1250 to successfully dip A3S traps from two different beams. Yes, it needs tight coupling. Doug Bill Coleman wrote: I've had very little luck trying to use my HD-1250 dipper. (Tech
/archives//html/Towertalk/2004-12/msg00558.html (8,371 bytes)

29. [TowerTalk] 60th Birthday (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sun, 02 Jan 2005 09:49:00 -0600
Tom, it is not because you are reaching your 60th birthday that your climbing days are over...there has to be other real reasons. I expect to tower climb into my late 70s or early 80s. Yes, I am phys
/archives//html/Towertalk/2005-01/msg00018.html (7,764 bytes)

30. Re: [TowerTalk] BANISHMENT (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Tue, 11 Jan 2005 14:40:23 -0600
Individuals and companies that DO NOT treat a customer fairly should be reported as a warning to other potential customers. Individuals and companies that DO treat a customer fairly should be reporte
/archives//html/Towertalk/2005-01/msg00353.html (9,008 bytes)

31. [TowerTalk] TB-3 vs TB-25 (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Mon, 17 Jan 2005 13:58:45 -0600
Anyone have any experience with the Glen Martin TB-25 thrust bearing as to its durability and load bearing capacity? Would the TB-25 be a better choice than the Rohn TB-3? Doug -- Doug Renwick VA5DX
/archives//html/Towertalk/2005-01/msg00706.html (7,335 bytes)

32. Re: [TowerTalk] Re: Cutting braid - Installing PL259 (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Tue, 18 Jan 2005 10:07:44 -0600
Another way of cutting the non soldered braid is to use a piece of thin wall Al tubing whose ID is about the same as the OD of the dielectric. Slip that piece of tubing between the braid and dielectr
/archives//html/Towertalk/2005-01/msg00758.html (9,013 bytes)

33. Re: [TowerTalk] Rotors - your thoughts please. (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Wed, 19 Jan 2005 14:00:23 -0600
Thats an easy question to answer...Spid without a doubt. Lee Buller wrote: So, what do people like out there? T2X? Yaesu? Stay with what I got? AlphSpid? Lee - K0WA -- Doug Renwick VA5DX PO Box 50, C
/archives//html/Towertalk/2005-01/msg00833.html (8,372 bytes)

34. Re: [TowerTalk] Repetition (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Wed, 19 Jan 2005 19:02:12 -0600
Tom, Boy, there sure is a lot of bitchy hams around these days. Why not buy a good quality rotor in the beginning? It will be with you for a long time, provide trouble free service and you can upgrad
/archives//html/Towertalk/2005-01/msg00864.html (8,652 bytes)

35. Re: [TowerTalk] Conductive Concrete and Grounding (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Wed, 26 Jan 2005 16:43:10 -0600
My 30+ years of experience agrees with Keith. At a number of different locations I have never had a lightning strike to my tower(s) crack the concrete pad. The legs of the towers are attached to grou
/archives//html/Towertalk/2005-01/msg01152.html (9,196 bytes)

36. [TowerTalk] TB-3 and TB-4 (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Tue, 08 Feb 2005 15:05:47 -0600
Does anyone know the maximum vertical load specifications for the TB-3 and TB-4 thrust bearings? Doug/VA5DX _______________________________________________ See: http://www.mscomputer.com for "Self Su
/archives//html/Towertalk/2005-02/msg00211.html (7,218 bytes)

37. Re: [TowerTalk] Rohn wasn't perfect-- can we end this please? (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Thu, 10 Feb 2005 14:08:05 -0600
John, Please refrain from trying to turn speculation into fact. You obviously side with KQ2M. You and I do not know the facts! To pretend that you do, only adds 'wood to the fire'. On one hand you sa
/archives//html/Towertalk/2005-02/msg00309.html (9,329 bytes)

38. Re: [TowerTalk] lightning umbrella (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sat, 26 Feb 2005 18:43:41 -0600
From my experience of 30 years I have to agree with John that a good cone of protection does exist. There are not many things in life that give you a 100% guarantee...If you come close to 100% you ar
/archives//html/Towertalk/2005-02/msg00610.html (8,568 bytes)

39. Re: [TowerTalk] A3S (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Thu, 24 Mar 2005 23:03:19 -0600
Make sure: 1. Some/all traps are not installed backwards. Pull the black plastic trap covers off. The coil cover is screwed to the element and the screw end should be towards the boom. 2. The outer t
/archives//html/Towertalk/2005-03/msg00803.html (8,569 bytes)

40. Re: [TowerTalk] The Frog vs an A3S (score: 1)
Author: Doug Renwick <ve5ra@sasktel.net>
Date: Sat, 26 Mar 2005 09:00:57 -0600
If all you did was to interchange traps then you only moved the problem from the driven to the reflector. You still have a problem albeit disguised. Something is still wrong with a trap(s). Doug -- D
/archives//html/Towertalk/2005-03/msg00834.html (7,720 bytes)


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