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1. Topband: 160 dipole on 80 & 40 (score: 1): Author: Dick Duccini <blue356@juno.com>; Date: Mon, 12 Sep 2005 15:45:19 -0400; Help - I'm trying to use my 160 dipole on 40 & 80 but I'm unable to tune it to any kind of resonance. It's about 260 feet end to end, center fed with 450 ohm ladder line then to a Nye Viking tuner. W; /archives//html/Topband/2005-09/msg00023.html (6,509 bytes)
2. Re: Topband: 160 dipole on 80 & 40 (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Mon, 12 Sep 2005 22:20:14 -0400; unable to tune end, center fed Works great on 160 I've already tried without an Hi Dick, The worse multiband length combination is an electrical 1/4 wl feeder or multiple used with a 1/2 wl antenna; /archives//html/Topband/2005-09/msg00025.html (8,138 bytes)
3. Re: Topband: 160 dipole on 80 & 40 (score: 1): Author: "Richard (Rick) Karlquist (N6RK)" <richard@karlquist.com>; Date: Tue, 13 Sep 2005 08:33:26 -0700; This is because on 80m, you have a full wave dipole with many 1000's of ohms drive impedance driven through a half wave line, which puts this same impedance at the tuner. I don't know of any commerc; /archives//html/Topband/2005-09/msg00026.html (8,419 bytes)
4. Re: Topband: 160 dipole on 80 & 40 (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Tue, 13 Sep 2005 12:23:18 -0400; many line, of Each 1/2 wl antenna half has a driving impedance of about 3500-6000 ohms. There are in series. The result is the tuner has to match 7000-12000 ohms if the feeder is lossless. This is g; /archives//html/Topband/2005-09/msg00027.html (9,000 bytes)
5. Re: Topband: 160 dipole on 80 & 40 (score: 1): Author: "Donald Chester" <k4kyv@hotmail.com>; Date: Wed, 14 Sep 2005 00:31:35 +0000; I never had any problem with that configuration, although my basic antenna was 1/2 wl on 80, not 160. I used about 60 ft of feedline, and the antenna worked well on 80, 40 and 20. What I liked about; /archives//html/Topband/2005-09/msg00028.html (10,032 bytes)
6. Re: Topband: 160 dipole on 80 & 40 (score: 1): Author: "Tom Rauch" <w8ji@contesting.com>; Date: Wed, 14 Sep 2005 04:26:45 -0400; between a high Such a length tune to resonance the switchable antenna at the odd about 200 watts, down the coil to feedliner indicated running the same simple parallel plague. Hi Don, Antenna tuners; /archives//html/Topband/2005-09/msg00029.html (11,298 bytes)

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