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#1
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The original Windom *was* an intentionally off center fed multi-band
antenna. Anybody have info on the Windom from the 40's 40's.... Wasn't the design criteria something like "make it 40 feet high and feed it 40 feet off-center"? -- --Myron A. Calhoun. Five boxes preserve our freedoms: soap, ballot, witness, jury, and cartridge PhD EE (retired). "Barbershop" tenor. CDL(PTXS). W0PBV. (785) 539-4448 NRA Life Member and Certified Instructor (Home Firearm Safety, Rifle, Pistol) |
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#2
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Myron Calhoun wrote:
"Wasn`t the design criteria something like "Make it 40 feet high, and feed it 40 feet off center." The Windom was named for the amateur who described it in an article. It was a 1/2-wavelengrh at its lowest frequency of use. A single feed wire is connected at 0.34 X the length of the antenna, from one end. The Windom works best over highly conductive earth using a versatile matching network to the transmitter. The 1/3 length feedpoint from one end is about 1/6 the distance from the antenna`s centerpoint. 40 feet off center, makes the antenna 240 feet long. This is 1/2-WL at 146 meters. It is 12 meters high. This is 1/4-WL at 48 meters and 1/2-WL at 24 meters. Best regards, Richard Harrison, KB5WZI |
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#3
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