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References: [ +from:john@carltonhouse.eclipse.co.uk: 47 ]

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41. Re: [TowerTalk] Boom Supports (score: 1): Author: "John Lemay" <john@carltonhouse.eclipse.co.uk>; Date: Wed, 17 Jul 2013 16:27:51 +0100; Chuck Your proposal is perfectly sound. A number of commercial manufacturers use this approach. You want to keep the weight to a minimum at the top of the mast, so use aluminium, not steel. The great; /archives//html/Towertalk/2013-07/msg00317.html (8,531 bytes)
42. Re: [TowerTalk] concrete (score: 1): Author: "John Lemay" <john@carltonhouse.eclipse.co.uk>; Date: Fri, 01 Nov 2013 15:46:18 -0500; The concrete base needs to be protected during the early stages of curing (say 3 days) from:- Frost - cover with straw / blankets / polystyrene sheets Extreme rainfall - cover with plastic / tarpauli; /archives//html/Towertalk/2013-11/msg00011.html (12,973 bytes)
43. Re: [TowerTalk] Drain Pipe Passing Thru Tower Foundation (score: 1): Author: "John Lemay" <john@carltonhouse.eclipse.co.uk>; Date: Tue, 14 Jan 2014 13:42:19 -0500; Marsh The answer to your question is neither ! No need to relocate the drain, but don't pour concrete directly around it either. What you should do is surround the exposed pipe with a firm but compre; /archives//html/Towertalk/2014-01/msg00200.html (9,539 bytes)
44. Re: [TowerTalk] Antenna matching values (score: 1): Author: "John Lemay" <john@carltonhouse.eclipse.co.uk>; Date: Tue, 22 Apr 2014 08:16:32 +0100; Hello Drax The measurements of SWR that you have recorded suggest that something is quite severely wrong with your array. I'd hazard a guess that one or more aerials has become disconnected, or that; /archives//html/Towertalk/2014-04/msg00455.html (9,043 bytes)
45. Re: [TowerTalk] Advice Wanted-Tuning A 10 Meter Telrex Beam (score: 1): Author: "John Lemay" <john@carltonhouse.eclipse.co.uk>; Date: Wed, 2 Jul 2014 16:13:37 +0100; Hopefully, you are taking measurements with the aerial clear of the ground, and pointing skywards ? Otherwise ground proximity will make an impact. John G4ZTR Tuning a Telrex 10M523 (Telrex 5 element; /archives//html/Towertalk/2014-07/msg00017.html (9,734 bytes)
46. Re: [TowerTalk] More from the M2 antennas quality control file (score: 1): Author: "John Lemay" <john@carltonhouse.eclipse.co.uk>; Date: Mon, 13 Apr 2015 19:48:03 +0100; The vertical elements are all shifted along the boom relative to the horizontal ones. Therefore a vertical and horizontal element which are adjacent to one another are not necessarily a "pair" and wi; /archives//html/Towertalk/2015-04/msg00293.html (12,743 bytes)
47. Re: [TowerTalk] Heliax acting strangely: Help? (score: 1): Author: "John Lemay" <john@carltonhouse.eclipse.co.uk>; Date: Sun, 27 Aug 2017 13:55:48 +0100; Yes, water ingress. If you are lucky, it is at one end or other. Remove both connectors, examine for dampness / corrosion. If necessary allow to air dry or use gentle heat. Re-check for infinite resi; /archives//html/Towertalk/2017-08/msg00293.html (10,814 bytes)

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