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Total 529 documents matching your query.

301. [Towertalk] Knots (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sat, 21 Dec 2002 19:51:14 -0500
Bowline never came loose on me even once in my life. Never heard of such. Never read of such. Once tension is on them, takes a little doing to get them loose. Towertalk has the distinction of carryin
/archives//html/Towertalk/2002-12/msg00630.html (10,894 bytes)

302. [Towertalk] WHY?!!! (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Tue, 24 Dec 2002 00:27:56 -0500
1. This antenna is one of the all time classics. Strictly speaking what you call the main radiator is really TWO items. The radiation essentially gets done by the part of the piece which has nothing
/archives//html/Towertalk/2002-12/msg00677.html (12,634 bytes)

303. [Towertalk] Negotiating (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Thu, 26 Dec 2002 13:42:26 -0500
Better to wind up with a fair price than be snookered (intentionally or unintentionally) by someone because you're afraid you might hurt their feelings. A useful phrase is, "Nothing personal, but I'm
/archives//html/Towertalk/2002-12/msg00745.html (8,639 bytes)

304. [Towertalk] Rotating Dipole (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sun, 3 Nov 2002 23:28:11 -0500
Regular dipoles vary hugely depending on height. Shortening one with loading will lower the impedance. How high was it? 73 mounted as a at 40m thought
/archives//html/Towertalk/2002-11/msg00026.html (7,932 bytes)

305. [Towertalk] 160 Mtr Phased Verticals -Problems and Trivulations (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sun, 10 Nov 2002 15:49:32 -0500
A collection of short answers... There is almost no feedline around that will be lossy enough healthy to "broaden" the apparent SWR of an antenna on 1.8 MHZ, aside from damp string or saltwater in a
/archives//html/Towertalk/2002-11/msg00179.html (13,160 bytes)

306. [Towertalk] New Radomes for repeater antennas... (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Wed, 13 Nov 2002 11:56:08 -0500
Particularly the older Phelps-Dodge, the adage is, if it ain't broke don't fix it. The real weak point is the coax to the antenna, and the coax connection at the base not being sealed properly. Are t
/archives//html/Towertalk/2002-11/msg00267.html (9,357 bytes)

307. [Towertalk] OPTIMIZED ANTENNA SYSTEM (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Fri, 15 Nov 2002 10:35:37 -0500
A 20m eight element wire yagi on 168' catenary (true wide spaced) fixed on EU is far narrower than anything below. In combination with a higher 4 el swung 350 for JA, UA9, UA0, it covers very well. T
/archives//html/Towertalk/2002-11/msg00343.html (12,859 bytes)

308. [Towertalk] Quad vs Yagi (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Wed, 20 Nov 2002 00:45:22 -0500
While real world construction can modify results, and there are well-known noise performance and ease of construction differences between quads and yagis, comparing the two in idealized circumstances
/archives//html/Towertalk/2002-11/msg00524.html (9,462 bytes)

309. [Towertalk] Stackspacing for Triband Beams (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sat, 30 Nov 2002 12:27:50 -0500
Stacking of dissimilar tribanders is problematic. Your 30 foot spacing should be left alone. Practical considerations around guy wires will govern where the antennas go. Unless all guys are Phillystr
/archives//html/Towertalk/2002-11/msg00813.html (9,340 bytes)

310. [Towertalk] Fw: Phase tri bander (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Fri, 4 Oct 2002 23:40:29 -0400
A line often heard around here: More antennas are better. Having a pair of tri-banders on the same tower is a fairly common strategy. Although combination gain is a consideration, it is not the only
/archives//html/Towertalk/2002-10/msg00162.html (9,485 bytes)

311. [Towertalk] 40M 4 Sq vs. 2 el Yagi at 70 ft (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Fri, 11 Oct 2002 22:40:34 -0400
A two element 40 meter "shorty forty" at 70 feet and up is a fixture among contesters that can't put up the monsters. Suggest to any one of them that they should replace it with a four-square and see
/archives//html/Towertalk/2002-10/msg00421.html (10,897 bytes)

312. [Towertalk] RE: [ct-user] Networking CTwin via Ethernet (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Fri, 18 Oct 2002 01:55:08 -0400
You probably have an old call sign or alias address at QTH.NET or some such that is still subscribed to the reflectors, and is forwarding to you. In effect double subscribed. reflector
/archives//html/Towertalk/2002-10/msg00577.html (8,031 bytes)

313. [Towertalk] Moving To New QTH (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Fri, 18 Oct 2002 10:01:47 -0400
It will be ERP, at the antenna height, and directed at the horizon. There is a classical music radio station near Raleigh, WCPE. It broadcasts on 89.7. The antenna is up a ~1200 foot tower. It broadc
/archives//html/Towertalk/2002-10/msg00584.html (11,361 bytes)

314. [Towertalk] Soldering at the top of the tower (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sat, 19 Oct 2002 12:27:46 -0400
The only issue with placing a "permanent" extension to the tower and up is ground, and ground fault protection. Wiring AC at the tower follows the same rules as putting power out at a swimming pool a
/archives//html/Towertalk/2002-10/msg00640.html (11,910 bytes)

315. [Towertalk] split feed antennas (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sat, 19 Oct 2002 12:42:38 -0400
Unfortunately there is no kw level 96 ohm coax. What you need is the alternate runs transformer formula, to match each incoming line to 100 ohms zero reactance. The formula gives you low z, run of hi
/archives//html/Towertalk/2002-10/msg00642.html (8,754 bytes)

316. [Towertalk] 40m ant (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Sun, 20 Oct 2002 02:23:38 -0400
Neither, and both... Assuming, since you live in NJ, that it's not the SW you are worried about with a dipole on EU, that the direction in question is to the NW. Sloping the dipole down toward the we
/archives//html/Towertalk/2002-10/msg00653.html (8,873 bytes)

317. [Towertalk] 20 Meter J Antenna and Noise (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 21 Oct 2002 07:27:50 -0400
I have heard of this kind of noise coming from a power-line MOV that needs to be replaced. That means getting into the TV circuitry, however. GL & 73, Guy. Poway, for ZL7C about 5 be act from my
/archives//html/Towertalk/2002-10/msg00679.html (9,154 bytes)

318. [Towertalk] Phillystran (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 28 Oct 2002 08:55:36 -0500
A number that will reduce interaction substantially is 1/2 wave worth of philly on the LOWEST frequency in use on top of the tower. Others may tell you that going all philly except for the last 12 fe
/archives//html/Towertalk/2002-10/msg00788.html (8,846 bytes)

319. [Towertalk] Counterweights for wire verticals (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Mon, 28 Oct 2002 21:27:02 -0500
One of my favorites is an antifreeze bottle about 3/4 full of water, with a tiny hole in the cap, tied by the handle. About 6-7 pounds. Fill it full and it cracks the plastic when it freezes (unless
/archives//html/Towertalk/2002-10/msg00821.html (11,392 bytes)

320. [Towertalk] Re: Counterweights for wire verticals (score: 123)
Author: k2av@contesting.com (Guy Olinger, K2AV)
Date: Tue, 29 Oct 2002 07:50:09 -0500
No water jugs and no bleach jugs, which can be pretty flimsy. ANTIFREEZE jugs. And available in black if you get certain brands. Someone posted about not being enough weight to haul up coax. True, bu
/archives//html/Towertalk/2002-10/msg00826.html (9,512 bytes)


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