Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Tue, 25 Oct 2005 13:49:55 +0100
Hello Zig, I am sorry but I do not have any digital pictures, but I can give a verbal description, so here goes:- The Italian worm drive rotor I have, is a PST medium range model. The rotor is bolted
I agree Mark. I would love to know the correct name, or description, of the split spring sleeves, used to hold "push on" radio/TV control knobs in place..... does anyone know, and even better, if you
Hello Harry, Thanks for your thoughts. I do not want to use these " split spring sleeves" for radio/TV knob use at all, but access to a source, of manufactur, would be helpful. So far, all the sales
Sorry for this posting, but the reply to Lee <K0wa@swbell.net> is undeliverable. Hello Lee, Many years ago, when I was a junior TV engineer, working at a BBC Engineering research facility, I wandered
Hello Gary, I asked the same question. The answer was that the measurement device cost around 1400 pounds sterling, so I decided to ask a company that specialised in installing lightning protection f
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Thu, 8 Jun 2006 20:11:46 +0100
Hello Gary, Thanks for the response and information. Like you, I have been reading various mail regarding lightning protection and effective grounding....I came to the conclusion that the answer was
I have an average sized, UK manufactured yagi, a Jaybeam TB3, which covers 14,21,28mhz, at the top of a 20mtr lattice tower. I am considering adding the Cushcraft D3W, 3 WARC band rotary dipole to th
This thread reminds me of a Qso I had, with a Finnish station, back in the mid 80s, he told me that he had bought a redundant tower crane, had it erected in a forest, and then built a 3 element 80 me
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Mon, 20 Nov 2006 11:10:11 -0000
Hello Dan, That is exactly what I have done to my Strumech P60 tower. At the top of the head unit I have fitted a roller bearing which has a two inch bore, the bearing came from the back axle/wheel h
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Mon, 20 Nov 2006 14:21:33 -0000
Just an omission correction in my note to Dan N3OX and the group. The type of roller bearing that I fitted to the head unit of my Strumech P60 tower, is a tapered roller bearing, and therefore well a
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Tue, 21 Nov 2006 00:44:42 -0000
Please forgive this second posting to the group, but I suspect that the original has got lost in the electronic mire...John, G3JVC. Hello Dan, That is exactly what I have done to my Strumech P60 towe
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Thu, 25 Jan 2007 09:52:03 -0000
Good morning, A year or so back, I described, on the reflector, the way in which I had incorporated a vehicle transmission flexible coupler into my yagi rotor drive train. This six inch diameter rubb
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Thu, 25 Jan 2007 18:29:36 -0000
Gentlemen, In view of the response I have received, permit me to publish a copy of the email I sent to Dennis earlier today, also, I promise to obtain some close up digital photographs (Santa was tho
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Thu, 25 Jan 2007 22:30:22 -0000
I claim no originality for the use of a rubber coupler. I had a practical problem, and needed to resolve it....it just goes to prove that "great minds, think alike"........just one correction to add
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Mon, 18 Jun 2007 19:56:08 +0100
I think all this came about because the lady in question lives close to one of the many mobile phone masts, which are springing up like mushrooms in, and around London....some people are becoming con
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Sun, 01 Mar 2009 05:03:28 -0800
Good afternoon, I wonder, are there any in the group with professional experience of erecting the wire curtain arrays, suspended between tall towers, as used at professional SW BC stations? If there
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Tue, 14 Apr 2009 18:39:12 +0100
Good afternoon gentlemen. I write to seek the group's advice on the ideal height of a tower, with respect to surrounding undulations in the landscape. I have read that the ideal site for a radio tran
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Tue, 14 Apr 2009 19:43:38 +0100
To the group, I would like to thank Bill KH7XS/K4XS, Al KE1FO and Dave AB7E, for their very prompt response to my question. All drew my attention to the HFTA program contained on the disc supplied wi
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Thu, 30 Jul 2009 18:20:14 +0100
I had this problem when working as SM0/G3JVC in Stockholm back in the mid 80s. There I had a top floor apartment at 16 floors up, and with a private mini roof garden, you could then just stepped over
Author: "John E. Cleeve" <g3jvc@jcleeve.idps.co.uk>
Date: Wed, 12 Aug 2009 19:10:51 +0100
To resolve a similar problem with the head unit of my 60ft lattice tower, I used a heavy duty roller thrust bearing, obtained from a scrapped heavy truck in a vehicle scrap yard, at the top of the he