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References: [ +from:G3SEK@ifwtech.demon.co.uk: 91 ]

Total 91 documents matching your query.

41. [TowerTalk] Guying crank up towers (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Sun, 14 Jun 1998 21:35:36 +0100; Here are a few thoughts from the land where fixed guyed towers under 100ft are quite rare, and crank-ups are everywhere. As well as amateur towers, many thousands of the same free-standing crank-ups; /archives//html/Towertalk/1998-06/msg00500.html (11,228 bytes)
42. [TowerTalk] Antenna mast and wiring. (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Wed, 17 Jun 1998 20:48:08 +0100; Good, you already see the basic problem - you don't want any horizontal metalwork (and that includes the feedline) running through the same plane as the horizontal elements, or near. A non-metallic c; /archives//html/Towertalk/1998-06/msg00620.html (8,758 bytes)
43. [TowerTalk] MFJ 259 (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Wed, 24 Jun 1998 20:17:18 +0100; I'm expecting one of the first AEA Complex Impedance Analyzers in Europe to arrive next Monday for review for RadCom (RSGB). The work will be shared with GM4ZNX, who will be testing its accuracy by k; /archives//html/Towertalk/1998-06/msg00870.html (8,851 bytes)
44. [TowerTalk] MFJ 259 (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Thu, 25 Jun 1998 08:25:01 +0100; If the dummy loads were good, it sounds like the Resistance pot R31 was not adjusted correctly. My MFJ-259 was pretty accurate right out of the box, but if you want to experiment there are four trimp; /archives//html/Towertalk/1998-06/msg00885.html (9,885 bytes)
45. [TowerTalk] MFJ 259 calibration (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Thu, 25 Jun 1998 19:16:12 +0100; Well go on, Ed, drop the other shoe and tell us what they are! 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.demon.co.uk/g3sek -- FAQ on; /archives//html/Towertalk/1998-06/msg00919.html (8,037 bytes)
46. [TowerTalk] MFJ 259 Problem (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Fri, 26 Jun 1998 13:47:38 +0100; message posted in rec.radio.amateur.antenna It confirms that there can be problems with the accuracy of the dummy load, but the final paragraph suggests that factory calibration problems are also a p; /archives//html/Towertalk/1998-06/msg00937.html (8,271 bytes)
47. [TowerTalk] new topic (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Mon, 29 Jun 1998 10:59:26 +0100; Either the train was going very slowly or Rick has a holographic memory! That was GBR, noted mainly for its 60kHz transmissions (which use the largest antennas of course) but there are obviously many; /archives//html/Towertalk/1998-06/msg01000.html (8,203 bytes)
48. [TowerTalk] 4-Square Owners & Experts... (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Wed, 6 May 1998 19:18:13 +0100; G3HCT's array also uses three verticals, phased in twos and switched to give six directions. He found that in order to get really good reverse nulls in all six directions, the radial fields under all; /archives//html/Towertalk/1998-05/msg00238.html (8,782 bytes)
49. [TowerTalk] Hole Alignments (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Mon, 18 May 1998 12:57:43 +0100; The Black& Decker tool looks like an interesting alternative to V- blocks, although it still needs a drill press to get accurate alignment of a row of holes along the boom. One way to solve that prob; /archives//html/Towertalk/1998-05/msg00449.html (9,758 bytes)
50. [TowerTalk] Hole Alignments (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Mon, 18 May 1998 21:39:47 +0100; Thanks, Art - my US shopping list now includes Bullet drills *and* long center drills! The general problem of keeping all the holes in a line along the boom is that even a 1deg error will show, becau; /archives//html/Towertalk/1998-05/msg00479.html (8,884 bytes)
51. [TowerTalk] Two VHF Yagis more than 1 wavelength apart (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Wed, 20 May 1998 16:44:48 +0100; You're right to! All that the standard Cushcraft phasing harness can do is to match the impedances - but the changes in pattern and gain will be very hard to predct - a real mess. You can only get ga; /archives//html/Towertalk/1998-05/msg00528.html (9,681 bytes)
52. [TowerTalk] Stacking vert & horiz 2 meter beams (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Tue, 21 Apr 1998 07:27:58 +0100; Probably not, because they're cross-polarized... but you've overlooked two more questions that may be even more relevant. 1. Will the horizontal beams mess each other up? You need to check whether /; /archives//html/Towertalk/1998-04/msg00589.html (8,539 bytes)
53. [TowerTalk] Nesting of multiband stacked yagis (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Wed, 4 Mar 1998 07:41:43 +0000; Take a look at my web pages, which contain an "FAQ" on this subject. The closest distance for stacking of mixed antennas depends on the capture area of each antenna, which you can estimate from the m; /archives//html/Towertalk/1998-03/msg00058.html (8,847 bytes)
54. [TowerTalk] US Tower -- Pully Replacement? (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Sun, 1 Feb 1998 16:29:27 +0000; One day, somebody is going to challenge that in court - most likely, it will be some tower user's own insurance company, trying to recover the costs of a big payout after an accident. British courts; /archives//html/Towertalk/1998-02/msg00011.html (9,474 bytes)
55. [TowerTalk] Mosley antennas - Warning: Strong Language (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Fri, 13 Feb 1998 22:42:27 +0000; For those of use who don't see CQ-Contest, is it possible to post the key data here, please? 73 from Ian G3SEK Editor, 'The VHF/UHF DX Book' 'In Practice' columnist for RadCom (RSGB) http://www.ifwte; /archives//html/Towertalk/1998-02/msg00363.html (9,392 bytes)
56. [TowerTalk] 2 meter quandry (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Mon, 5 Jan 1998 07:20:41 +0000; Let's re-phrase option 1: mount the yagi horizontally and discover the pleasures of 2m DXing - which is universally horizontal. Option 2 gives you (almost) the best of everything. Options 3 and 4 are; /archives//html/Towertalk/1998-01/msg00044.html (8,734 bytes)
57. [TowerTalk] Crank-up cable lube (WD-40) (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Thu, 8 Jan 1998 07:39:10 +0000; So does gasoline, but that's no lubricant. As others have pointed out, the important thing for a cable lubricant is its long-term performance, and that's where WD-40 is weak because it contains littl; /archives//html/Towertalk/1998-01/msg00107.html (8,497 bytes)
58. [TowerTalk] HY-GAIN 18HT HIGH TOWER & CTSVR (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Sat, 10 Jan 1998 18:20:03 +0000; Jim Reid wrote, about the CTSVR: (well, a "folded monopole"...) That's right, it is only the feedpoint resistance that is raised. The radiation resistance stays exactly the same as a non-folded monop; /archives//html/Towertalk/1998-01/msg00163.html (12,824 bytes)
59. [TowerTalk] HY-GAIN 18HT HyTower 18-HT (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Sun, 11 Jan 1998 09:11:32 +0000; K4VUD e-mailed me, copy to the reflector: WC1M replied here: In normal performance it probably won't make much difference. FWIW, I use a coil choke at the base of my vertical, and a clip-on RF curren; /archives//html/Towertalk/1998-01/msg00170.html (8,949 bytes)
60. [TowerTalk] Pipe Mast (score: 1): Author: G3SEK@ifwtech.demon.co.uk (Ian White, G3SEK); Date: Fri, 16 Jan 1998 19:44:51 +0000; Well, maybe not total nonsense - just the proposed idea of joining the pipes using connectors :-) There was a design for a tilt-over pipe mast of similar construction in the old ARRL Antenna Handbook; /archives//html/Towertalk/1998-01/msg00255.html (7,454 bytes)

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