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References: [ +from:mike.harris@horizon.co.fk: 29 ]

Total 29 documents matching your query.

1. Re: [TowerTalk] elevated short vertical dipole or quarterwavemonopole? (score: 1)
Author: "Michael Harris" <mike.harris@horizon.co.fk>
Date: Thu, 2 Dec 2004 20:34:18 -0300
G'day, <snipo> put up etc. lossy. <snipo> I use a 30 foot vertical with the base 3 feet off the ground on 30M. This is too long on 30M so the vertical is brought onto resonance with a pair of shorten
/archives//html/Towertalk/2004-12/msg00023.html (10,290 bytes)

2. [TowerTalk] Stacking (score: 1)
Author: "Michael Harris" <mike.harris@horizon.co.fk>
Date: Fri, 3 Dec 2004 19:37:35 -0300
G'day, I'm sure there will be some useful opinions on the following: I currently run a 5 element 18-30MHz log. The elements are insulated from the single boom and fed with transposed aluminium strip
/archives//html/Towertalk/2004-12/msg00055.html (7,912 bytes)

3. Re: [TowerTalk] Terrain Effects (score: 1)
Author: "Michael Harris" <mike.harris@horizon.co.fk>
Date: Tue, 7 Dec 2004 11:47:17 -0300
G'day, <snipo> It has been my experience that TA only works out to about 10,000 feet (slightly more than 10 Km). <snipo> Err, maybe .... (slightly more than 3 km) Regards, Mike VP8NO ________________
/archives//html/Towertalk/2004-12/msg00160.html (7,453 bytes)

4. [TowerTalk] 20M Yagi (score: 1)
Author: "Michael Harris" <mike.harris@horizon.co.fk>
Date: Fri, 10 Dec 2004 19:46:03 -0300
G'day, I'm currently putting together the material requirements for building a three element 20M Yagi based upon the optimised design in the ARRL "Antenna Book" 18th edition. Falklands is a windy pla
/archives//html/Towertalk/2004-12/msg00245.html (8,501 bytes)

5. [TowerTalk] 20 metre Yagi (score: 1)
Author: "Michael Harris" <mike.harris@horizon.co.fk>
Date: Fri, 24 Dec 2004 19:14:48 -0300
G'day folks, Many thanks to all who responded to my post, both on and off list. Much food for thought. I have downloaded a selection of the modelling applications out there but this is the wrong seas
/archives//html/Towertalk/2004-12/msg00480.html (7,365 bytes)

6. Re: [TowerTalk] kt34xa torque balancing (score: 1)
Author: "Michael Harris" <mike.harris@horizon.co.fk>
Date: Sun, 9 Jan 2005 13:15:22 -0300
G'day, Pricing on Array Solutions web site for v2.15 is now $79 for the consumer version. An interesting and significant jump from a "measly $30". If you're into mega stacks of long boom arrays I gue
/archives//html/Towertalk/2005-01/msg00250.html (10,496 bytes)

7. Re: [TowerTalk] N connectors pulling off (score: 1)
Author: "Michael Harris" <mike.harris@horizon.co.fk>
Date: Tue, 18 Jan 2005 14:04:43 -0300
G'day, I'm wondering just what sort of tension these things are being subject to. I tend to believe that co-ax connectors are there to make reasonably solid electrical contact, the physical stuff is
/archives//html/Towertalk/2005-01/msg00775.html (9,282 bytes)

8. [TowerTalk] Baluns (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Mon, 21 Feb 2005 18:37:30 -0300
G'day, I'm surprised that no one has mentioned that "The Wireman" has ready built and kits of parts for ferrite bead type baluns. See www.thewireman.com products, baluns. Regards, Mike VP8NO ________
/archives//html/Towertalk/2005-02/msg00494.html (6,839 bytes)

9. [TowerTalk] Element Mounting Plates (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Sat, 3 Sep 2005 19:01:26 -0400
G'day all, I'm wondering how the "effective diameter" of element to boom mounting plates is calculated. In the ARRL Antenna Book the mounting plate for the 20 metre Yagi elements is 0.375 inch thick,
/archives//html/Towertalk/2005-09/msg00105.html (8,484 bytes)

10. [TowerTalk] Riveted Elements (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Sun, 18 Sep 2005 18:47:57 -0300
G'day all, A couple of days ago I noticed that one half of the rear element of my 18-30MHz log looked wounded, a bit of extra droop. After taking it down for inspection I discovered that there was a
/archives//html/Towertalk/2005-09/msg00581.html (8,548 bytes)

11. [TowerTalk] Rivets (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Tue, 20 Sep 2005 19:31:38 -0300
G'day all, Many thanks to all who responded with their riveted element comments. It seems riveting isn't the universal specific and needs to be applied with some degree of caution. Oh yes, in a previ
/archives//html/Towertalk/2005-09/msg00628.html (6,885 bytes)

12. [TowerTalk] Centre Insulator (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Wed, 28 Sep 2005 18:38:17 -0300
G'day, I wonder if anyone can point me in the direction of a supplier for fibre glass rod suitable for bridging the centre of a split driven element. The element I am assembling is the heavy duty 20m
/archives//html/Towertalk/2005-09/msg00882.html (7,158 bytes)

13. Re: [TowerTalk] No Tower! (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Thu, 6 Oct 2005 20:42:12 -0300
G'day all, Maybe but at times it can be a bit of a pain. Sure a VP8 calling a JA is possibly more interesting to the JA than more common calls and it doesn't matter if the signals are down a bit. It
/archives//html/Towertalk/2005-10/msg00223.html (10,192 bytes)

14. Re: [TowerTalk] Rotor damage prevention (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Tue, 25 Oct 2005 20:42:19 -0300
G'day all, PST make a "flexi mount clamp" for the PST2051 and there is a picture of it on the Array Solutions site. To fit it on my PST61D requires fabrication of a mounting plate. The PST61D's 1870l
/archives//html/Towertalk/2005-10/msg00808.html (8,390 bytes)

15. Re: [TowerTalk] Rotor damage prevention (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Wed, 26 Oct 2005 22:50:10 -0300
Hi, <snip> I found that the big problem with the GS065 was corrosion of the adjusting screws. I've just changed one after it had been up for 20 years: the adjusting screws (and the attaching screws)
/archives//html/Towertalk/2005-10/msg00829.html (8,640 bytes)

16. Re: [TowerTalk] Rotor damage prevention (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Wed, 26 Oct 2005 22:50:47 -0300
G'day, Not the same item. This one consists of two mounting plates each with four lugs which engage lug face to lug face cushioned by a synthetic eight legged star insert. Not sure how butch it reall
/archives//html/Towertalk/2005-10/msg00830.html (8,249 bytes)

17. Re: [TowerTalk] Question for crank owners (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Thu, 29 Dec 2005 20:16:36 -0300
G'day folks, 40' to Is and mechanism I have a two section 12 metre Heavy Duty "Versatower" made by Francis and Lewis in the UK. On this there is a butch steel flap on the first section that is lifted
/archives//html/Towertalk/2005-12/msg00607.html (9,946 bytes)

18. Re: [TowerTalk] RHOMBIC RESISTORS (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Tue, 28 Feb 2006 20:39:29 -0300
G'day, to use with rhombic antennas. Instead of high value high wattage resistors that are probably hard to find and expensive, how about using a 12:1 or 16:1 broad band transformer and putting a reg
/archives//html/Towertalk/2006-02/msg00411.html (7,759 bytes)

19. Re: [TowerTalk] More on Orion mast clamps (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Fri, 3 Mar 2006 18:58:00 -0300
G'day, at my all Maybe they are properly torque balanced. There was quite a thread on this subject in January 2005. The David Leeson spreadsheets derived from his book "Physical Design of Yagi Antenn
/archives//html/Towertalk/2006-03/msg00059.html (8,477 bytes)

20. Re: [TowerTalk] dirty trix? (score: 1)
Author: "Mike Harris" <mike.harris@horizon.co.fk>
Date: Mon, 6 Mar 2006 20:25:49 -0300
G'day folks, hand similar Care to share the experience? I run a PST61D, apparently they are being purchased in significant numbers by the US navy after a shoot out against other makes. Regards, Mike
/archives//html/Towertalk/2006-03/msg00110.html (8,843 bytes)

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