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References: [ +from:gm3sek@ifwtech.co.uk: 293 ]

Total 293 documents matching your query.

1. Re: [TowerTalk] Loos Tension Gauge (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Wed, 10 Aug 2005 07:49:03 +0100
Thanks, Dick - I've been keeping those big old transformers for *something* useful after all... -- 73 from Ian G/GM3SEK _______________________________________________ See: http://www.mscomputer.com
/archives//html/Towertalk/2005-08/msg00213.html (8,584 bytes)

2. Re: [TowerTalk] Windings on Amidon core (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Fri, 12 Aug 2005 08:23:46 +0100
May I recommend DL5SWB's Mini Ring Core Calculator? http://dl5swb.de/html/software_for_amateur_radio.htm It has a large library of core data from many different manufacturers, including dimensions an
/archives//html/Towertalk/2005-08/msg00241.html (9,056 bytes)

3. Re: [TowerTalk] Help with antenna (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Thu, 25 Aug 2005 08:05:44 +0100
Old cutting boards are also good for dipole center pieces, custom end insulators, gamma arm supports and many similar applications. In these islands we can't speak much about long-term effects of sun
/archives//html/Towertalk/2005-08/msg00502.html (11,328 bytes)

4. Re: [TowerTalk] Yagi lightning protection (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Thu, 25 Aug 2005 08:32:04 +0100
the element arced to the boom which is grounded. The relay contacts were in the middle.<< To cover all possibilities, it seems like you'd need three spark gaps around the outside of the relay box: on
/archives//html/Towertalk/2005-08/msg00503.html (9,574 bytes)

5. Re: [TowerTalk] Re Railroad tracks (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Tue, 6 Sep 2005 15:50:28 +0100
On the other hand, if you happen to be operating in the middle of a switch-yard, all those parallel rails make a great reflector for NVIS. And if you have to haul up a tower, you can flag down a pass
/archives//html/Towertalk/2005-09/msg00161.html (7,620 bytes)

6. [TowerTalk] Reduced size four-squares? (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Fri, 9 Sep 2005 15:35:22 +0100
limitation. Jim Lux replied: [...] [...] ...and there the topic ended. Could I revive it with a slightly different question, please? I'm planning a 40m 4-square on a lot that isn't quite big enough.
/archives//html/Towertalk/2005-09/msg00227.html (9,963 bytes)

7. Re: [TowerTalk] TowerTalk] Source for 20' Mast (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Sun, 11 Sep 2005 09:05:59 +0100
Slightly under - 1-29/32in. The steel ones were originally based on "1-1/2 in" water pipe schedules, though they have their own specifications now. The aluminium version is a special tube with the sa
/archives//html/Towertalk/2005-09/msg00287.html (9,013 bytes)

8. Re: [TowerTalk] Long feedlines (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Wed, 14 Sep 2005 09:15:41 +0100
In other words, foamed heliax with a solid copper sheath. The sheath is firmly bonded to the foam, so water cannot creep along the inside. The big advantage is not the low loss, but its ruggedness. I
/archives//html/Towertalk/2005-09/msg00445.html (9,160 bytes)

9. Re: [TowerTalk] RE : Another stub question (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Fri, 16 Sep 2005 06:51:07 +0100
For an untidy packaging solution, some years ago a G station produced a large cardboard box with four coax leads, labeled "10m Station", "15m Station", "20m Station" and "Connect Tribander Here". It
/archives//html/Towertalk/2005-09/msg00518.html (8,833 bytes)

10. Re: [TowerTalk] WD40 - additional (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Mon, 3 Oct 2005 20:06:20 +0100
Confirmed by http://www.wd40.com/Brands/wd40_faqs.html -- 73 from Ian G/GM3SEK 'In Practice' columnist for RadCom (RSGB) http://www.ifwtech.co.uk/g3sek _______________________________________________
/archives//html/Towertalk/2005-10/msg00083.html (9,818 bytes)

11. Re: [TowerTalk] Towers and XYLs (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Thu, 6 Oct 2005 17:22:09 +0100
...while mine has a particular liking for large parabolic dishes. Both may be prepared to undertake consultancy work, and to appear as expert witnesses at suitably inflated fees. -- 73 from Ian G/GM3
/archives//html/Towertalk/2005-10/msg00185.html (8,139 bytes)

12. Re: [TowerTalk] Antenna problem? (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Thu, 6 Oct 2005 17:48:30 +0100
Something very similar happened here a few weeks ago, and it turned out to be a bad PL259. The center pin had become intermittently open-circuit when plugged into the jack at the end of the feedline,
/archives//html/Towertalk/2005-10/msg00187.html (9,824 bytes)

13. Re: [TowerTalk] Antenna problem? (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Fri, 7 Oct 2005 07:37:18 +0100
In case this point was buried in my previous post, when SWR-testing the feedline and antenna, it's always a good idea to leave a 50R load connected in the shack. At each place where you break the fee
/archives//html/Towertalk/2005-10/msg00241.html (8,913 bytes)

14. Re: [TowerTalk] CQ article error(?) (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Sat, 8 Oct 2005 10:05:38 +0100
Interesting... the power companies in the UK take a different view. In the event of a neutral break in their local distribution system (230V single-phase, neutral close to earth potential) they'd rat
/archives//html/Towertalk/2005-10/msg00339.html (10,079 bytes)

15. Re: [TowerTalk] CQ article error(?) (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Sat, 8 Oct 2005 14:14:37 +0100
That would be in an apartment block where the power company provides earthing for all the apartments via the earthed neutral. Each individual apartment would have its own inlet panel ("consumer unit"
/archives//html/Towertalk/2005-10/msg00345.html (12,620 bytes)

16. Re: [TowerTalk] cord reel for a inverted L (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Thu, 3 Nov 2005 23:02:22 +0000
A few years ago, I asked for brainstorming solutions to this problem via the magazine column. There were several interesting suggestions (eg suspended weights in two deep holes in the ground, optiona
/archives//html/Towertalk/2005-11/msg00127.html (8,352 bytes)

17. Re: [TowerTalk] Twinlead- Zepp (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Fri, 4 Nov 2005 08:01:17 +0000
That's about normal: given a choice of three names for something, radio amateurs will ALWAYS choose the one that creates the most confusion. The original zeppelin antenna was intended to be trailed b
/archives//html/Towertalk/2005-11/msg00143.html (8,867 bytes)

18. Re: [TowerTalk] RMC 1000 Remote cable (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Fri, 4 Nov 2005 08:17:19 +0000
Practical experience of moonbouncers and others is that N connectors will typically handle 700-800W continuous at 432MHz, or 1.5kW if they're absolutely perfect. At lower frequencies, the reliable po
/archives//html/Towertalk/2005-11/msg00144.html (10,209 bytes)

19. Re: [TowerTalk] VERTICAL BALUN (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Fri, 4 Nov 2005 18:20:07 +0000
Sorry, Tom, I have a big problem about using the term "balun" around any antenna that cannot ever be "balanced" as you define it - and isn't even intended to be. I agree completely with your definiti
/archives//html/Towertalk/2005-11/msg00170.html (10,288 bytes)

20. Re: [TowerTalk] VERTICAL BALUN (score: 1)
Author: Ian White G/GM3SEK <gm3sek@ifwtech.co.uk>
Date: Sat, 5 Nov 2005 18:32:19 +0000
Tome makes some fair points... Wouldn't try to "stop" anybody anyhow, and certainly don't want to get into a Holy War about it (oops, sorry Steve :-) However, we do have to recognize that the same d
/archives//html/Towertalk/2005-11/msg00199.html (11,566 bytes)

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