Search String: Display: Description: Sort:

Results:

References: [ +from:johnei7ba@eircom.net: 32 ]

Total 32 documents matching your query.

1. Re: [TowerTalk] Limit to Concentric Quads or is 2M the Bad Actor? (score: 1)
Author: "John Tait" <johnei7ba@eircom.net>
Date: Sun, 14 Nov 2004 23:41:58 -0000
I have a multiband Quad as you describe Joe. I built (but did not model) concentric multielement Quads for two metres and 70cms. These behaved fb until I nested them into the existing HF Quad. The re
/archives//html/Towertalk/2004-11/msg00447.html (10,350 bytes)

2. Re: [Antennas] Re: [TowerTalk] Limit to Concentric Quads or is 2MtheBad Actor? (score: 1)
Author: "John Tait" <johnei7ba@eircom.net>
Date: Tue, 16 Nov 2004 18:08:19 -0000
And thank you Joe.. I was wondering what I had done wrong, so it's nice to know that you had the same result. Like you, I'll be putting the VHF/UHF stuff on a second tower. 73 John EI7BA http://www.i
/archives//html/Towertalk/2004-11/msg00449.html (11,276 bytes)

3. Re: [TowerTalk] Ham IV bearing balls (score: 1)
Author: "John Tait" <johnei7ba@eircom.net>
Date: Fri, 19 Nov 2004 23:27:18 -0000
When I refurbished mine, I threw away the metal spacers that fit between the balls, and filled the complete race with balls. This spreads the weight more evenly, and prevents the denting, and wear an
/archives//html/Towertalk/2004-11/msg00598.html (9,965 bytes)

4. Re: [TowerTalk] elevated short vertical dipole or quarterwavemonopole? (score: 1)
Author: "John Tait" <johnei7ba@eircom.net>
Date: Thu, 2 Dec 2004 19:44:32 -0000
Check out "Another Way to Look at Vertical Antennas" by Rudy Severns N6LF....QEX March1999 and http://www.iol.ie/~bravo/low_band_antennae.htm 73 John EI7BA Here's an interesting optimization question
/archives//html/Towertalk/2004-12/msg00046.html (11,535 bytes)

5. Re: [TowerTalk] Cushcraft A3 trap cleaning (score: 1)
Author: "John Tait" <johnei7ba@eircom.net>
Date: Mon, 27 Dec 2004 16:38:33 -0000
Take a look at http://www.iol.ie/~bravo/Troubleshooting%20Traps.htm it may be of help 73 es HNY John EI7BA On Nov 16, 2004, at 3:46 PM, asciibaron@comcast.net wrote: i tried to disassemble the driven
/archives//html/Towertalk/2004-12/msg00601.html (8,660 bytes)

6. Re: [TowerTalk] Top loading mobile antennas (score: 1)
Author: "John Tait" <johnei7ba@eircom.net>
Date: Mon, 16 May 2005 19:06:42 +0100
Hi Phil.. Mark modestly left out his web address which is at http://www.qsl.net/n1lo/index.html It's well worth a visit, and not only for his mobile info. I use homebrew whips similar to his, with st
/archives//html/Towertalk/2005-05/msg00431.html (12,137 bytes)

7. Re: [TowerTalk] G4ZU SK (score: 1)
Author: "John Tait" <johnei7ba@eircom.net>
Date: Fri, 2 Sep 2005 22:09:14 +0100
I'm very sorry to hear that news Dave... I had one of "Dicky Bird's" minibeams in the mid 60s. It was a clever design, but difficult to set up. When properly tuned, they worked very well. I made a f
/archives//html/Towertalk/2005-09/msg00067.html (8,589 bytes)

8. Re: [TowerTalk] dirty trix? (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Mon, 06 Mar 2006 13:19:51 +0000
Hi Pete.. You can see it at the UK agent's site at http://www.braeside.plus.com/spid/az/az.html. 73 John EI7BA _______________________________________________ ________________________________________
/archives//html/Towertalk/2006-03/msg00095.html (7,143 bytes)

9. Re: [TowerTalk] Cubical quad questions (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Thu, 10 Aug 2006 09:50:34 +0100
* I don't have the Cubex info, but one thing I can tell you is... Do NOT drill the arms... Firstly it weakens them, and secondly it's helpful to be able to adjust the element position. I use strong c
/archives//html/Towertalk/2006-08/msg00267.html (8,200 bytes)

10. Re: [TowerTalk] Keeping antenna for rotating on mast (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Wed, 30 Aug 2006 14:50:25 +0100
*Get yourself a Spid rotator, then you don't even have to re-aim it.. just tell the Spid where the beam is pointing. 73 John EI7BA http://www.iol.ie/~bravo/ * ________________________________________
/archives//html/Towertalk/2006-08/msg01106.html (7,095 bytes)

11. Re: [TowerTalk] Butternut HF-5V question (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Sun, 22 Oct 2006 20:20:22 +0100
It'll work OK Kirk... You don't have to add length, but you will increase it's efficiency if you do. You may find http://www.iol.ie/~bravo/80&40mVertic.htm of some use.. Take a peek. Vy 73 John EI7BA
/archives//html/Towertalk/2006-10/msg00643.html (7,495 bytes)

12. Re: [TowerTalk] Force12 Sigma verticals (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Wed, 03 Jan 2007 19:44:47 +0000
I use cheap homebrew versions for 80 and 160m..They work very well. Vy 73 John EI7BA http://www.iol.ie/~bravo/low_band_antennae.htm _______________________________________________ ___________________
/archives//html/Towertalk/2007-01/msg00037.html (7,256 bytes)

13. Re: [TowerTalk] 40 meter vertical to 80 meters. (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Sat, 17 Mar 2007 22:27:15 +0000
I'd try about 12m of wire. Connect the centre of the wire to the top of your vertical, and run the two 6m lengths in opposite directions, as horizontal to the ground as possible. That's probably a bi
/archives//html/Towertalk/2007-03/msg00314.html (9,628 bytes)

14. Re: [TowerTalk] Tilting tower query (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Fri, 13 Jul 2007 18:57:11 +0100
In one of the old ARRL handbooks, there was a design for a tiltover tower made of well casing. I've drawn a pic from memory at http://www.iol.ie/~bravo/Well%20Casing%20Tower.htm. A friend EI9FE, succ
/archives//html/Towertalk/2007-07/msg00567.html (8,297 bytes)

15. Re: [TowerTalk] Top loading HF-6V for 160 (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Fri, 19 Oct 2007 17:34:46 +0100
Hi Steve.. Take a look towards the bottom of this page.. http://www.iol.ie/~bravo/80&40mVertic.htm 73 John EI7BA _______________________________________________ ______________________________________
/archives//html/Towertalk/2007-10/msg00432.html (8,222 bytes)

16. Re: [TowerTalk] Fw: Detailed R5 and or R7 Trap information (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Sun, 16 Mar 2008 19:19:48 +0000
Hi Marc. Take a peek at these.. http://www.iol.ie/~bravo/r7_vertical.htm http://www.mrs.bt.co.uk/mrs/r5/ http://www.xs4all.nl/~pa0fri/Ant/R5/onhr5eng.htm http://www.telusplanet.net/public/telwest/R7/
/archives//html/Towertalk/2008-03/msg00271.html (9,887 bytes)

17. Re: [TowerTalk] Combined Dipoles (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Wed, 16 Apr 2008 18:24:57 +0100
My 160,80 and 40m dipoles are at 45ft, with the widest angle possible between dipole legs. As Bill says, this system works very well. Mine has almost 1:1 SWR on all three bands. Check out all the oth
/archives//html/Towertalk/2008-04/msg00399.html (9,652 bytes)

18. Re: [TowerTalk] R7000 Trap Resonant Frequencies (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Mon, 09 Nov 2009 09:50:40 +0000
Hi Mike.. I think that's normal... The traps have a chunk of aluminium tubing at each end, which loads the trap so you read a much lower frequency. What I did with my R7, was to take a note of the tr
/archives//html/Towertalk/2009-11/msg00155.html (8,041 bytes)

19. Re: [TowerTalk] Vertical dipoles (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Wed, 18 Nov 2009 01:22:21 +0000
Hi Jim.. I'd have to disagree with that statement. I have both vertical dipoles and inverted Vs for 80 and 160m. The Verticals are separated from the Vs by about 500 yds, so they don't "see" each oth
/archives//html/Towertalk/2009-11/msg00306.html (9,369 bytes)

20. Re: [TowerTalk] Vertical dipoles (score: 1)
Author: John Tait <johnei7ba@eircom.net>
Date: Wed, 18 Nov 2009 11:14:11 +0000
The antenna is an "off-centre fed, capacity hatted, vertical dipole"... Try saying that after fifteen pints..{:o) John EI7BA _______________________________________________ __________________________
/archives//html/Towertalk/2009-11/msg00312.html (10,118 bytes)


This search system is powered by Namazu