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Total 9 documents matching your query.

1. [TowerTalk] halfwave verticals (score: 1): Author: vk2dpd@bigpond.com (David Douglass); Date: Wed, 29 Aug 2001 13:11:56 -0000; Hi all, I'm in the process of building some halfwave verticals to use portable on HF with the aid of a DK9SQ telescoping fibreglass pole. I am building the LC matching system to convert the high impe; /archives//html/Towertalk/2001-08/msg00645.html (8,267 bytes)
2. [TowerTalk] halfwave verticals (score: 1): Author: Dinsterdog@aol.com (Dinsterdog@aol.com); Date: Wed, 29 Aug 2001 11:53:58 EDT; David, Amidon makes a very effective tool to match the impedance of 50 ohm coax to a variety of possibilities of do it yourself antennas. Their W2FMI UNUN (UNbalanced to UNbalanced transformer) model; /archives//html/Towertalk/2001-08/msg00649.html (9,003 bytes)
3. [TowerTalk] halfwave verticals (score: 1): Author: wa9als@starband.net (WA9ALS - John); Date: Wed, 29 Aug 2001 11:09:30 -0500; These are at http://www.amidoncorp.com/f_ham.htm to a match It slopers contacted still then They other http://www.anwireless.com List Sponsored by AN Wireless: AN Wireless handles Rohn tower systems,; /archives//html/Towertalk/2001-08/msg00651.html (10,230 bytes)
4. [TowerTalk] halfwave verticals (score: 1): Author: SPELUNK.SUENO@prodigy.net (EUGENE SMAR); Date: Wed, 29 Aug 2001 12:41:56 -0400; David: The ARRL publish an Antenna Book which includes a diskette with software. One of these DOS programs is Transmission Line Analyzer. You can do the calculations you inquire about with this progr; /archives//html/Towertalk/2001-08/msg00654.html (10,142 bytes)
5. [TowerTalk] halfwave verticals (score: 1): Author: RCARIELLO@si.rr.com (RCARIELLO); Date: Wed, 29 Aug 2001 17:13:38 -0000; David, Sorry I can not find a computer program you are requesting. From my note taken from ON4UN's books, Low Band DXing, I have some values that might be a good starting point to work from. Quote. H; /archives//html/Towertalk/2001-08/msg00656.html (10,617 bytes)
6. [TowerTalk] halfwave verticals (score: 1): Author: mfarrer@tality.com (Mel Farrer); Date: Wed, 29 Aug 2001 10:43:29 -0700; There is another approach by using the link coupled ATU such as the Z-match or other resonant tank ATU It will allow a wide range of Hi-Z matches over a wide range of frequency. See www.cebik.com/lin; /archives//html/Towertalk/2001-08/msg00657.html (11,658 bytes)
7. [TowerTalk] halfwave verticals (score: 1): Author: 2@vc.net (2); Date: Wed, 29 Aug 2001 14:10:09 -0700; I have a halfwave vertical for 80m, The feed Z is around 1000-ohms. I match it to 50-ohms with a variable L and a variable C. This allows coverage from 3.5MHz to 4MHz with a 1.0 to 1 SWR. cheerio, D; /archives//html/Towertalk/2001-08/msg00664.html (8,646 bytes)
8. [TowerTalk] halfwave verticals (score: 1): Author: kk9a@arrl.net (kk9a@arrl.net); Date: Wed, 29 Aug 2001 20:39:43 -0500; I tried to use a halfwave vertical with a parasitic reflector on the beach in Grand Cayman (ZF) two years ago. I fed my vertical in the center as a vertical dipole. I modeled it with AO, but when I p; /archives//html/Towertalk/2001-08/msg00666.html (9,649 bytes)
9. [TowerTalk] halfwave verticals (score: 1): Author: 2@vc.net (2); Date: Thu, 30 Aug 2001 07:48:57 -0700; // A 50 - approximately 1000-ohm L-network can be used to match coax to an end-feed a half-wave (Hertz) antenna. If one uses DC gear motors to drive the L and C from the shack, the SWR will be 1 to; /archives//html/Towertalk/2001-08/msg00688.html (11,343 bytes)

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