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Total 185 documents matching your query.

21. Re: [TowerTalk] Short Dipole for 40 (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Tue, 20 Apr 2004 17:28:06 -0500
More detail on the 2 elt 40 M in the tree. Rotor? Mount? or 2 elt wire fixed(and hints on getting it up)? Tnx es 73, de Jim KG0KP bunch in space! _______________________________________________ See:
/archives//html/Towertalk/2004-04/msg00394.html (8,134 bytes)

22. [TowerTalk] Transmitting cap for 6 M antenna (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Fri, 4 Jun 2004 18:53:36 -0500
I made a 6 meter antenna from 1/2 inch copper pipe. Center fed(gamma match using 12 inches of 1/4 copper tube), mostly like a letter U with the upper ends folded in towards the center but not connect
/archives//html/Towertalk/2004-06/msg00053.html (7,600 bytes)

23. [TowerTalk] Vertical in a tree (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Wed, 4 Aug 2004 11:57:47 -0500
I am thinking of dragging a 2 meter collinear vertical up in a tree. I am under CC&Rs like many of us and just cannot make out some of the group on simplex that I like to frequent using the vertical
/archives//html/Towertalk/2004-08/msg00097.html (7,903 bytes)

24. Re: [TowerTalk] Mixing your own concrete? (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Tue, 24 Aug 2004 13:41:10 -0500
An 80 lb bag is rated at 1/2 cubic ft. 27 cu ft=yd = 54 bags/per yard. Home depot 2.38 I think for the cheap stuff per bag = 128.54 plus tax and a lot of work. Probably cheaper to have the readymix t
/archives//html/Towertalk/2004-08/msg00501.html (9,757 bytes)

25. [TowerTalk] Tower base dimensions - why? (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Thu, 9 Sep 2004 20:54:39 -0500
Not being an engineer, will someone tell me why? What are the actual important things about the tower base? My thoughts: 1. must extend below the frost line. 2. weight 3. surface large enough to atta
/archives//html/Towertalk/2004-09/msg00147.html (7,369 bytes)

26. Re: [TowerTalk] Tower base dimensions - why? (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Thu, 9 Sep 2004 21:19:17 -0500
73, Jim to the the course, if Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA. _______________________________________________ See: htt
/archives//html/Towertalk/2004-09/msg00150.html (9,378 bytes)

27. [TowerTalk] Hi Power lines - interference (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Thu, 23 Sep 2004 19:48:00 -0500
I have some land in the country that has high power lines along one side. I don't know the voltage but there are three lines and they are suspended from a crossbar mounted between and extended beyond
/archives//html/Towertalk/2004-09/msg00550.html (7,539 bytes)

28. Re: [TowerTalk] Hi Power lines - interference (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Fri, 24 Sep 2004 20:01:44 -0500
Thanks everybody for the responses. I think my first step is to set up HF mobile and camp out "under" the lines to see what I might expect. Responses seemed to vary mostly based on line maintenance a
/archives//html/Towertalk/2004-09/msg00592.html (8,011 bytes)

29. Re: [TowerTalk] Ham-Law reflector (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Mon, 4 Oct 2004 21:01:45 -0500
Ham-Law E-mail Address(es): Ham-Law@altlaw.com 73, de Jim KG0KP sign up and to check the archives. Thanks for the help. Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any ques
/archives//html/Towertalk/2004-10/msg00069.html (7,885 bytes)

30. Re: [TowerTalk] BPL (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Thu, 14 Oct 2004 15:20:11 -0500
Wonder how much the BPL folks have contributed to their campaigns. 73, Jim KG0KP -- Original Message -- From: "Alan C. Zack" <k7acz@cox.net> To: "CQ-Contest" <cq-contest@contesting.com> Cc: "Tower Ta
/archives//html/Towertalk/2004-10/msg00343.html (9,447 bytes)

31. Re: [TowerTalk] Ground radials- it's how you make it big (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Fri, 22 Oct 2004 23:01:44 -0500
Would it be better to have the radial "fork" about half way out into two to create better ground coverage at the out ends? 73, Jim KG0KP _______________________________________________ See: http://w
/archives//html/Towertalk/2004-10/msg00623.html (9,579 bytes)

32. Re: [TowerTalk] Vacuum tube 100 years old today (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Tue, 16 Nov 2004 15:16:38 -0600
I was in missile class in the Air Force in 1963 and the lab and course was entirely in tubes even though the missile was entirely in transistors. The adaptation was very short (minutes, maybe and hou
/archives//html/Towertalk/2004-11/msg00427.html (12,014 bytes)

33. Re: [BULK] - Re: [TowerTalk] Vacuum tube 100 years old today (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Tue, 16 Nov 2004 15:50:51 -0600
You might be right. Everything I saw was solid state but there may have been something in there that was tube. It was the Minuteman system that we were installing. 73, de Jim KG0KP was that knew full
/archives//html/Towertalk/2004-11/msg00431.html (9,738 bytes)

34. Re: [BULK] - Re: [TowerTalk] Vacuum tube 100 years old today (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Tue, 16 Nov 2004 22:12:17 -0600
No radar on Minuteman - all inertial guidance, Sperry gyros and solid state control to the nozzles - once it was disconnected from the hole, it was GONE. 73, de Jim KG0KP we levels. those at any any
/archives//html/Towertalk/2004-11/msg00452.html (13,613 bytes)

35. Re: [TowerTalk] Rusty tower (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Sun, 19 Dec 2004 05:30:15 -0600
www.eastwood.com specializes in metal products and tools normally used in restoring old automobiles. They have products that change iron oxide into an inert material as well as whatever else you migh
/archives//html/Towertalk/2004-12/msg00364.html (9,128 bytes)

36. [TowerTalk] PVC size vs qty (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Thu, 23 Dec 2004 22:05:06 -0600
I ran my coax on top of the ground as the initial installation and the "hurry up" and get it on the air. I am now contemplating digging in the PVC and replacing the original coax which has probably h
/archives//html/Towertalk/2004-12/msg00463.html (7,440 bytes)

37. [TowerTalk] "Wire"less antenna connection (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Fri, 21 Jan 2005 08:23:21 -0600
Yes, Eliminate all wires to the tower. Use wi-fi to send digitized audio to the tower base for input to the auto-tuning amplifier. Rotor control also. Supply AC power only and eliminate coax loss, l
/archives//html/Towertalk/2005-01/msg00918.html (9,578 bytes)

38. [TowerTalk] Installing Ground Rods - Contact with soil (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Tue, 25 Jan 2005 21:02:28 -0600
I would think drilling in ground rods may leave a small gap to the soil. I dig a small funnel in the ground and then keep it full of water and work the rod up and down. It works great but I wonder ab
/archives//html/Towertalk/2005-01/msg01135.html (8,955 bytes)

39. [TowerTalk] Cold Solder tool - theory (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Mon, 21 Mar 2005 22:39:53 -0600
I have seen them but only in the package. Someone told me they "sparked". Sounds to me like they have two points and heat up the material you are trying to solder by using it as the soldering tip. Is
/archives//html/Towertalk/2005-03/msg00725.html (6,924 bytes)

40. [TowerTalk] Lightning attraction to "attic dipoles" (score: 1)
Author: "Jim Miller" <JimMiller@STL-Online.Net>
Date: Fri, 1 Apr 2005 04:59:24 -0600
Has anyone seen or heard of anything that would make you suspect that dipoles in the attic would increase the likelihood of a strike to the house? Is there any reason to disconnect them from my equip
/archives//html/Towertalk/2005-04/msg00000.html (7,019 bytes)


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