Windom
Windom antenna
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Theory and construction of a novel trapless center-loaded off-center-fed (cl-ocf) dipole or windom antenna for the 80, 40, 30, 20, 15 and 10m hf amateur radio bands -
This multiband wire antenna it is an off centre fed dipole, with 10 feet of vertical radiator, needs no tuner on 40m, 20m and 10m and works fine on all bands above 40m with a tuner, and even below 40m on 60m, and 80m. -
An off centre fed dipole, with 10 feet of vertical radiator. It needs no tuner on 40m, 20m and 10m by M0UKD -
The total length of this antenna is 41m, height is about 11m, and diameter of element is 2mm. JA7KPI modified this antenna originally used as Inverted-V type of 80m band Dipole. Works on 40 - 80 meters band with acceptable swr. -
PDF file by QRP Expressions by By N. T. Len Carlson, K4IWL -
The Windom antenna was widely used in the 1930s and is named after the amateur that wrote a comprehensive article about it -
HF Windom antenna, cover 80, 40, 20 15, and 10 meters, antenna design -
Homebrewina a multiband windom antenna -
The 4-band Fritzel model FD4 is a special version of a Windom antenna. It is a half-wave long on the lowest frequency, and is fed from a coax cable through a transformer inserted in the wire at one-third from one end -
A marriage of the windom and slinky antennasm, article by NC4TC -
A marriage of the windom and slinky antennas, experimental home brew antenna by NC4TC -
Eight Bands On One Coax by kh2d -
JA7KPI windom antenna page -
A windom multiband antenna project with pictures and diagram for the 6:1 balun -
Project of a windom multiband antenna for 10 to 80 meters in portuguese -
The Windom is an Off-center wire multiband Antenna. The old version was fed just by a single-wire connected on 1/3 of antenna's overall length or with an open-line feeder (later versions). Here is another model with coaxial feeder, which is compatible with Solid States - 50 Ohm output transceivers . -
This antenna is not a true Windom, but rather an off center fed or OCF dipole works on 8 bands from 80 to 10 meters -
A project for a multiband HF windom antenna by VE2CV and VE3KLO -
Building a Windom HF Antenna. A PDF file presentation about homebrewing a windom antenna for the HF bands with formulas for 40 and 80 meters bands and step by step guide on making a 4:1 balun to feed the antenna. -
Homebrew project of a windom antenna, an off center fed dipole, resonating from 10 to 80 meters -
80 to 6 meters, 2 KW, designed to be used at heights of only 25 to 45 feet, includes a twenty foot long vertical radiator -
Classical coax-fed, off-center-fed dipole, feeded with a 4:1 Guanella balun -
This DIY vertical multi-band Windom antenna offers a practical and effective solution for amateur radio enthusiasts seeking a versatile and compact antenna for HF communications. Its simplicity of construction, multi-band capability, and favorable performance make it a valuable addition to any radio shack. The article provides detailed instructions on constructing the antenna and balun, along with diagrams and component specifications. Field tests demonstrated successful contacts with stations across Europe and North America on 14, 18, and 28 MHz. The antenna exhibited comparable performance to a W3DZZ dipole and outperformed a Cobweb antenna on 18 MHz. Low noise levels were observed, effectively suppressing background noise. -
This article describes the characteristics of the Windom antenna and shows the results of several simulations made with MMANA-GAL, covering models optimized for the 20 m, 40 m and 80 m bands.