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Total 21 documents matching your query.

1. [TowerTalk] towertalk digest? (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Fri, 15 Jun 2007 09:50:24 +0000
Greetings. Am a newcomer on this reflector. Can one get towertalk in daily digest form? And if so how? Cannot find the info on the FAQ page. Thanks for your time. 73 Barry ZL1DD -- Barry Kirkwood ZL1
/archives//html/Towertalk/2007-06/msg00458.html (6,743 bytes)

2. [TowerTalk] Wire for quads (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Tue, 19 Jun 2007 10:13:03 +0000
Interesting topic. My experience was with a triband spider quad many years ago. Had the quad up for about three years in a relatively mellow climate (no ice etc). The solid conductor wires and the ca
/archives//html/Towertalk/2007-06/msg00610.html (9,329 bytes)

3. [TowerTalk] Trap tribander with vertical orientation? (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Thu, 21 Jun 2007 02:08:08 +0000
Hmmm: Gather thev desire to run the tribander vertical is because of restrction on turning radius because of trees. It is agreed, I think that if this is done the performance of the antenna will be n
/archives//html/Towertalk/2007-06/msg00669.html (7,916 bytes)

4. [TowerTalk] Rooftop antennas (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Mon, 9 Jul 2007 09:58:12 +0000
Have no experience with high rooftop antenna mounting, but someone on the reflector might kindly do a little terrain modelling for you. My hunch is that a short mast on the roof supporting a beam wou
/archives//html/Towertalk/2007-07/msg00372.html (6,955 bytes)

5. [TowerTalk] Tilting tower query (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Fri, 13 Jul 2007 13:20:45 +0700
Greetings: Has anyone experience or comments on non telescoping tilting towers? That is: A rigid tubular or lattice mast with a stub mast and hinge. In the down posture looks like an assymetrical see
/archives//html/Towertalk/2007-07/msg00555.html (6,879 bytes)

6. [TowerTalk] Tilt tower thanks (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Sun, 15 Jul 2007 03:16:03 +0000
To all who commented on my request for info on tilt towers, thanks. Lots of helpful info. This is a fine group. 73 Baz ZL1DD -- Barry Kirkwood ZL1DD barrykirkwood@gmail.com __________________________
/archives//html/Towertalk/2007-07/msg00627.html (6,690 bytes)

7. [TowerTalk] Triband directors (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Fri, 20 Jul 2007 07:30:49 +0000
Have been fantasizing about next set up when I return to ZL. Thinking in terms of tribander, need to conserve weight and expense. Question: What is opinion on configuration as used in early TH-5 : Tr
/archives//html/Towertalk/2007-07/msg00780.html (6,859 bytes)

8. [TowerTalk] 160m Inverted L (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Mon, 23 Jul 2007 14:20:38 +0000
FWIW: Talking the 160m problem: The subject of counterpoises, ground planes etc is a subject in itself. My 02c worth: There are two main questions:(a) How to configure the antenna/earth/radial etc sy
/archives//html/Towertalk/2007-07/msg00878.html (8,559 bytes)

9. [TowerTalk] 160m Inverted L, further notes (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Tue, 24 Jul 2007 13:28:59 +0000
Thanks for the interest in my report of my experience with 160m inverted L using tower as the vertical section. The tower legs were set in concrete and copper strip was led from each leg to an earth
/archives//html/Towertalk/2007-07/msg00913.html (8,942 bytes)

10. [TowerTalk] Sweet spot locations: (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Sat, 28 Jul 2007 13:20:04 +0000
Years back I recall a note in Technical Topics in RSGB Radio Communications to the effect that experience of the British Post Office (which once had monopoly of telecommuncations in the British Isles
/archives//html/Towertalk/2007-07/msg01064.html (7,595 bytes)

11. [TowerTalk] Copper clad welding wire (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Sat, 28 Jul 2007 13:28:52 +0000
I once scored a load of this very cheap at an auction. Used it for normal skywires, gave lots to friends. In Auckland NZ, all locations close to the sea, the wire rusted in a very short time. Friends
/archives//html/Towertalk/2007-07/msg01066.html (6,796 bytes)

12. [TowerTalk] WARC beam interaction. (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Mon, 30 Jul 2007 07:02:58 +0000
Would like opinion/experience about interaction between typical 20-15-10 m triband yagi and duo band yagi for 18, 24 mHz mounted on same mast above tribander. Any advice on lower limit spacing to min
/archives//html/Towertalk/2007-07/msg01105.html (6,694 bytes)

13. [TowerTalk] Shunt feeding tower for 160 (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Mon, 6 Aug 2007 00:09:26 +0000
My experience is with a 50ft tower with F12 C3 beam on top. The yagi has elements isolated from the boom and probably gives less capacity hat top loading than most other hf yagis . I put a 20ft alumi
/archives//html/Towertalk/2007-08/msg00193.html (9,858 bytes)

14. [TowerTalk] Parallel Dipoles. (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Fri, 10 Aug 2007 09:32:29 +0700
Interesting topic. As the old saying goes, a good dipole is hard to beat. A 40m dipole approximates 3 1/2 wavelengths on 15m, giving two bands for the price of one, if you can tolerate somewhat highe
/archives//html/Towertalk/2007-08/msg00275.html (7,097 bytes)

15. [TowerTalk] RCA Spider web antenna (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Wed, 15 Aug 2007 10:59:50 +0800
Hi all: I mentioned this ingenious form of a mulit band parallel dipole in an earlier post. Have since had feedback that no info can be found via Google etc. Am currently travelling in SE Asia, no ac
/archives//html/Towertalk/2007-08/msg00402.html (7,206 bytes)

16. [TowerTalk] RCA and other SWL antennas (score: 1)
Author: "Barry Kirkwood" <barry.kirkwood@gmail.com>
Date: Thu, 16 Aug 2007 10:02:13 +0800
thanks for all the good info. this is a great reflector. re distribution amps: legend has it that in WWII the Brits had all sorts of problems feeding multiple receivers from a single antenna. Problem
/archives//html/Towertalk/2007-08/msg00423.html (7,377 bytes)

17. [TowerTalk] Four Square Array: effect of placing tower with yagi etc in centre of four square (score: 1)
Author: Barry Kirkwood <barry.kirkwood@gmail.com>
Date: Fri, 10 Dec 2010 12:07:51 +0000
Hi all: Would be grateful for any opinions, experience, modeling exercises etc on effect of placing a typical lattice tower with yagi on top in middle of the four verticals making a four square verti
/archives//html/Towertalk/2010-12/msg00218.html (7,701 bytes)

18. [TowerTalk] Need modeling help: Tower and yagi(s) in centre of Four Square (score: 1)
Author: Barry Kirkwood <barry.kirkwood@gmail.com>
Date: Sat, 11 Dec 2010 00:50:36 +0000
Hello again, Thanks to all who have replied with advice on effect of tower in centre of 160m four square array. Very helpful and have learned a lot. Looks like things could become critical if the tow
/archives//html/Towertalk/2010-12/msg00228.html (7,964 bytes)

19. [TowerTalk] Musing on G5RVs, baluns et al...... (score: 1)
Author: Barry Kirkwood <barry.kirkwood@gmail.com>
Date: Thu, 3 Feb 2011 02:59:35 +0000
Greetings from Chiangmai where every prospect pleases. Been following the thread started by the gentleman asking about feeding his G5RV (or variant thereof). The humble G5RV antenna was invented not
/archives//html/Towertalk/2011-02/msg00042.html (9,848 bytes)

20. [TowerTalk] Fwd: book Tribander comparison test (score: 1)
Author: Barry Kirkwood <barry.kirkwood@gmail.com>
Date: Fri, 25 Feb 2011 10:32:49 +0000
Interesting thread: On log periodics: Unless I am wrong, there are never more than two elements in an LPY fully active, so performance approximates two element yagi on any one frequency. Steppir has
/archives//html/Towertalk/2011-02/msg00464.html (15,135 bytes)


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