Search String: Display: Description: Sort:

Results:

References: [ +from:ggstewart@adam.com.au: 8 ]

Total 8 documents matching your query.

1. Topband: Thoughts on making low resistance joints between aluminiumtubing sections? (score: 1)
Author: "George Stewart, VK5ALS" <ggstewart@adam.com.au>
Date: Tue, 29 Aug 2006 12:33:42 +0930
Hi Topbanders, I am very much aware that any joins between sections of a short vertical radiator need particular care to produce as low a resistance as is possible so as not to degrade the overall ef
/archives//html/Topband/2006-08/msg00106.html (8,118 bytes)

2. Topband: FW: Thoughts on making low resistance joints betweenaluminium tubing sections? (score: 1)
Author: "George Stewart, VK5ALS" <ggstewart@adam.com.au>
Date: Thu, 31 Aug 2006 12:31:44 +0930
Hi Topbanders, With Edy's permission I am posting the reply he sent to me direct: -- Hello George, my two cents. I had and experince with a very short antenna which differs from other answer I found.
/archives//html/Topband/2006-08/msg00121.html (8,497 bytes)

3. Topband: FW: Thoughts on making low resistance joints betweenaluminiumtubing sections? (score: 1)
Author: "George Stewart, VK5ALS" <ggstewart@adam.com.au>
Date: Thu, 31 Aug 2006 12:39:21 +0930
Hi Topbanders, With Bill VE3NH's permission I am posting his reply to me to the Top Band listing. -- I use fine sand paper/steel wool/burnishing wheel on my drill to clean the tubing which goes insid
/archives//html/Topband/2006-08/msg00122.html (9,141 bytes)

4. Topband: FW: Thoughts on making low resistance joints betweenaluminiumtubing sections? (score: 1)
Author: "George Stewart, VK5ALS" <ggstewart@adam.com.au>
Date: Thu, 31 Aug 2006 12:43:14 +0930
Hi Topbanders, Posting with Pat, W5OZI's permission. -- TENNADYNE uses graphite powder before inserting telescoping sections and pinning them with SS screws. Naturally, the aluminum should be polishe
/archives//html/Topband/2006-08/msg00123.html (7,096 bytes)

5. Topband: Thoughts on making low resistance joints between aluminiumtubing sections? (score: 1)
Author: "George Stewart, VK5ALS" <ggstewart@adam.com.au>
Date: Wed, 6 Sep 2006 11:42:25 +0930
Hi Topbanders, Thanks to all who took the trouble to reply to the above posting. All replies were very much appreciated and I ended up with a sensible approach to making good low resistance RF joins
/archives//html/Topband/2006-09/msg00003.html (7,169 bytes)

6. Topband: Modelling/calculating the radiation efficiency of shortverticals with a capacity hat plus whip? (score: 1)
Author: "George Stewart, VK5ALS" <ggstewart@adam.com.au>
Date: Fri, 13 Oct 2006 09:55:08 +0930
Hi Top Banders, Can anyone give me some help in arriving at the change in radiation resistance (efficiency) for a 40 foot vertical on 1.8MHz with a top capacity hat 20 feet in diameter with 8 radial
/archives//html/Topband/2006-10/msg00081.html (8,041 bytes)

7. Topband: FW: Ground Radials Yet Again (score: 1)
Author: "George Stewart, VK5ALS" <ggstewart@adam.com.au>
Date: Sun, 15 Oct 2006 09:46:44 +0930
An interesting -- and very easy to overlook! -- reference in ON4UN's latest lowband bible in the matter of ground radials... Specifically, wire laid atop the ground may be considered to have a veloci
/archives//html/Topband/2006-10/msg00102.html (8,469 bytes)

8. Topband: Maximum size of capacitance top hat? (score: 1)
Author: "George Stewart, VK5ALS" <ggstewart@adam.com.au>
Date: Thu, 21 Dec 2006 10:32:20 +1030
Hi Topbanders, Just picking up on a point that Tom, W8JI made in the thread currently running on "Short, Fat Vertical": "More capacitance at the top is a good idea, SO LONG AS YOU DON'T MOVE THE CURR
/archives//html/Topband/2006-12/msg00207.html (7,999 bytes)


This search system is powered by Namazu