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Total 6 documents matching your query.

1. Re: Topband: 80m rotatable dipole load coil questions (score: 1)
Author: "David Cutter" <d.cutter@ntlworld.com>
Date: Wed, 12 Oct 2016 11:51:16 +0100
A quick note on a protective coating for aluminium: You might like to look at Alocrom 1200 (Alodine 1200 outside Europe) which can be hand-applied to preserve and protect aluminium from corrosion, re
/archives//html/Topband/2016-10/msg00047.html (9,587 bytes)

2. Re: Topband: New Noise - 160 Meters (score: 1)
Author: "David Cutter" <d.cutter@ntlworld.com>
Date: Fri, 14 Oct 2016 15:30:39 +0100
Petr That's very interesting. I have heard that long led strips eg in the kitchen are powered from a noisy smpsu: the long cable is the antenna. A linear supply should stop that noise or small ferrit
/archives//html/Topband/2016-10/msg00081.html (8,760 bytes)

3. Re: Topband: Traditional or off-center fed 160m vertical design? (score: 1)
Author: "David Cutter" <d.cutter@ntlworld.com>
Date: Mon, 07 Nov 2016 09:23:19 -0500
Have a look at this idea: http://www.m0rzf.co.uk/ants1/ This is an off centre fed but your normal feeder is connected to the end of the antenna via a choke. I've made several of the 40m version and 3
/archives//html/Topband/2016-11/msg00024.html (11,483 bytes)

4. Re: Topband: 160 m inverted L (score: 1)
Author: "David Cutter" <d.cutter@ntlworld.com>
Date: Wed, 09 Nov 2016 11:37:17 -0500
I recall reading from Ralph Holland that 0.015 wavelength was a good height. David G3UNA -- Original Message -- From: "Mike Waters" <mikewate@gmail.com> To: "Rob Atkinson" <ranchorobbo@gmail.com>; "t
/archives//html/Topband/2016-11/msg00058.html (11,108 bytes)

5. Re: Topband: 160 m inverted L (score: 1)
Author: "David Cutter" <d.cutter@ntlworld.com>
Date: Wed, 09 Nov 2016 12:04:25 -0500
Hello Peter I haven't done any work on this, but Ralph has. Have a look at this site and others of his: http://www.arising.com.au/people/holland/ralph/shortvert.htm David G3UNA Think of a dipole clos
/archives//html/Topband/2016-11/msg00061.html (12,179 bytes)

6. Re: Topband: Short Verticals (score: 1)
Author: "David Cutter" <d.cutter@ntlworld.com>
Date: Wed, 14 Jun 2017 09:53:56 +0100
As I understand it, if you reduce the effect of ground loss by using raised radials you should get a more predictable and consistent result. So, your main radiator, the vertical, sits between 2 sets
/archives//html/Topband/2017-06/msg00038.html (8,560 bytes)

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