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Total 338 documents matching your query.

61. Re: [TowerTalk] Coax Loss -- RG-Numbers Don't Tell us Much (score: 1)
Author: HansLG@aol.com
Date: Sat, 6 Feb 2010 18:13:44 EST
Rick, You can measure the losses with open OR shorted end with the MFJ-259. You just have to make sure the other end has a "loss-free" short or open end. (If you put a dummy load in the Loss Mode, yo
/archives//html/Towertalk/2010-02/msg00177.html (8,346 bytes)

62. Re: [TowerTalk] UHF connectors for LMR-600, I have loads of em..new. (score: 1)
Author: hanslg@aol.com
Date: Wed, 10 Feb 2010 08:13:42 -0500
Computers, computers, computers. I hate it all. Give me back the old time stuff when you didn't an instruction book thick like a bible. Hans - N2JFS What's happened? Regardless of whether I hit reply
/archives//html/Towertalk/2010-02/msg00226.html (9,952 bytes)

63. Re: [TowerTalk] beads for keyboard or microfone cable (score: 1)
Author: hanslg@aol.com
Date: Wed, 10 Feb 2010 11:16:06 -0500
Hi Jorge, You get the dimension in mm (millimeter) if you multiply the inch by 25.4 (exactly) as one inch, by definition, is 25.4 mm. The ID 1.020" of the 2X31-1081P2 is equal to 25.908 mm enough for
/archives//html/Towertalk/2010-02/msg00232.html (9,229 bytes)

64. Re: [TowerTalk] wind load (score: 1)
Author: hanslg@aol.com
Date: Thu, 18 Feb 2010 15:31:19 -0500
Just to remind you that when you start to calculate how the tower behave at various wind speeds you have to consider the surface of the rest of the tower. Yes, the force from the antenna is varying p
/archives//html/Towertalk/2010-02/msg00468.html (10,027 bytes)

65. [TowerTalk] Rotor questions (score: 1)
Author: HansLG@aol.com
Date: Tue, 9 Mar 2010 08:09:10 EST
I purchased a box with some "radio junk" on a auction for a few $$ some time ago. It contained a bunch of CB radios but on the bottom I fount two antenna rotors with control boxes. Today I decided to
/archives//html/Towertalk/2010-03/msg00068.html (8,151 bytes)

66. Re: [TowerTalk] Hawk's nest platform (score: 1)
Author: hanslg@aol.com
Date: Fri, 12 Mar 2010 10:27:46 -0500
Will these north-seeking owls ever go away? :-) Hans - N2JFS --Original Message-- From: Jim Walker <jim@walkersdomain.com> To: 'Tower and HF antenna construction topics.' <towertalk@contesting.com> S
/archives//html/Towertalk/2010-03/msg00174.html (12,796 bytes)

67. Re: [TowerTalk] HAWKS AND OTHER BIRDS ON TOWERS (score: 1)
Author: HansLG@aol.com
Date: Sat, 13 Mar 2010 10:23:08 EST
My guess, you would hardly see any effect on the tuning, not more than what you get from water deposit on the elements themselves. The birds definitely detune the antenna more. Hans - N2JFS In a mess
/archives//html/Towertalk/2010-03/msg00218.html (8,189 bytes)

68. Re: [TowerTalk] MF-259B (score: 1)
Author: hanslg@aol.com
Date: Mon, 15 Mar 2010 13:27:27 -0400
An other useful function is to find out what capacitor is needed for resonance with a coil (in hand). You set the 259 (or 269, what I have) in capacitor mode, connect the coil to it and get a reading
/archives//html/Towertalk/2010-03/msg00272.html (9,337 bytes)

69. Re: [TowerTalk] Shack wiring (score: 1)
Author: hanslg@aol.com
Date: Mon, 15 Mar 2010 21:34:10 -0400
You can never have too many surge protectors. Heard one story how somebody (that I personally don't know) plugged in his electric lawnmower on the same fuse as his newly purchased entertainment syste
/archives//html/Towertalk/2010-03/msg00281.html (13,019 bytes)

70. Re: [TowerTalk] Shack wiring (score: 1)
Author: HansLG@aol.com
Date: Fri, 19 Mar 2010 19:31:11 EDT
Hi Jim, I still don't get it (maybe because I am dumb). At my service entrance is a protector that connects has two MOVs, one from each leg to ground. Ground in this case is the same as neutral At th
/archives//html/Towertalk/2010-03/msg00385.html (10,466 bytes)

71. Re: [TowerTalk] Shack wiring (score: 1)
Author: HansLG@aol.com
Date: Sat, 20 Mar 2010 12:32:06 EDT
is Ground That's very good (assuming it's a good unit). This ground is the 8' grounding pole just at the entrance. What is that "ground?" EXACTLY where is it connected? Is there any control wiring ru
/archives//html/Towertalk/2010-03/msg00406.html (11,514 bytes)

72. Re: [TowerTalk] Shack wiring (score: 1)
Author: HansLG@aol.com
Date: Sat, 20 Mar 2010 12:40:58 EDT
This is the reason I added protectors to my telephones, especially the cordless and the answering machine. As the phone wires are not next to the power wires, there is a high possibility you end up w
/archives//html/Towertalk/2010-03/msg00409.html (9,551 bytes)

73. Re: [TowerTalk] Drill bits (score: 1)
Author: hanslg@aol.com
Date: Wed, 24 Mar 2010 00:20:24 -0400
An HSS type should do the job. You have to use some oil to avoid burning/overheating the drill though. If you want to be a little fancy you can buy a carbon-nitride drill bit. They, usually, are gold
/archives//html/Towertalk/2010-03/msg00476.html (9,174 bytes)

74. Re: [TowerTalk] Moving big rocks (score: 1)
Author: hanslg@aol.com
Date: Fri, 02 Apr 2010 01:27:16 -0400
I remember some years ago how a guy use to drill a hole in the rock and then put a soldering iron (yes). The heat from the iron make cracks in the rocks, cracks big enough to take the rock apart. I n
/archives//html/Towertalk/2010-04/msg00042.html (9,833 bytes)

75. Re: [TowerTalk] Yet another Hazer Guying Question (score: 1)
Author: hanslg@aol.com
Date: Wed, 07 Apr 2010 13:37:23 -0400
That would instead be haz-ING. You only need pick up the phone and call any local fraternity house senior for a complete list of services. 73, Ward N0AX What about that "North-seeking plastic Owl"?
/archives//html/Towertalk/2010-04/msg00202.html (9,189 bytes)

76. Re: [TowerTalk] TowerTalk Digest, Vol 88, Issue 45 (score: 1)
Author: hanslg@aol.com
Date: Tue, 13 Apr 2010 14:30:49 -0400
Hi Steve, On the higher frequencies, >144 MHz, the noise received at the antenna is usually (unless you have problems with QRM and QRN) close to or lower than the thermal noise. Your possibility of r
/archives//html/Towertalk/2010-04/msg00363.html (10,156 bytes)

77. Re: [TowerTalk] Hygain 18AVT trap for 20mtr/40mtr (score: 1)
Author: hanslg@aol.com
Date: Wed, 14 Apr 2010 16:54:55 -0400
25.4 mm = 1 inch and it is a linear function e.g. 50.8 mm = 2 inch. Use that calculator you (probably) have in your computer. 73 de Hans - N2JFS --Original Message-- From: Bob AD5VJ <ad5vj@ad5vj.com>
/archives//html/Towertalk/2010-04/msg00451.html (25,254 bytes)

78. Re: [TowerTalk] HFTA and diferent bands antennas (score: 1)
Author: hanslg@aol.com
Date: Mon, 26 Apr 2010 08:22:06 -0400
Not necessarily. See below. The word "effective" is an important qualifier here. What HFTA does is attempt to model interaction of the wavefront with terrain. So it isn't the antenna pattern that's c
/archives//html/Towertalk/2010-04/msg00818.html (9,736 bytes)

79. Re: [TowerTalk] ionosphere and ground reflections of radio signals (score: 1)
Author: hanslg@aol.com
Date: Mon, 26 Apr 2010 16:21:06 -0400
Hi Al, The bending of the waves in a "charged media" is do to the interaction between the charges and the wave (not the magnetic field) and (I believe) reciprocal. When you add a magnetic field you g
/archives//html/Towertalk/2010-04/msg00845.html (12,457 bytes)

80. Re: [TowerTalk] Windom (score: 1)
Author: hanslg@aol.com
Date: Tue, 27 Apr 2010 11:06:05 -0400
Just a little note regarding "link coupling": I had just put up my first Window with a link coupling to a home built antenna tuner. Everything went well. I was very happy how well it worked. 1/1 swr
/archives//html/Towertalk/2010-04/msg00896.html (8,979 bytes)


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