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At 98 MHz I've experimented with radial lengths from about 20 inches to 40 inches. The loop circumference was varied about the same amount. I haven't tested 1/2 wavelength radials with a longer radiator yet. I've had very good luck with the radials and loop circumference right around a physical 1/4 wavelength. If you're looking for a good starting place on 11 meters here is my best suggestion. Radials at 106 inches. Loop circumference at 94 inches (you could try the full 1/4 wave). Radiator length about 28 1/2 feet, straight with no cadge on top. Models of this antenna have been marketed for 11 meters using the old 90.5 inch radials, 94 inch loop, and radiator from about 27 to 30 feet.

[QUOTE="Shockwave, post: 228795, member: 10882"] At 98 MHz I've experimented with radial lengths from about 20 inches to 40 inches. The loop circumference was varied about the same amount. I haven't tested 1/2 wavelength radials with a longer radiator yet. I've had very good luck with the radials and loop circumference right around a physical 1/4 wavelength. If you're looking for a good starting place on 11 meters here is my best suggestion. Radials at 106 inches. Loop circumference at 94 inches (you could try the full 1/4 wave). Radiator length about 28 1/2 feet, straight with no cadge on top. Models of this antenna have been marketed for 11 meters using the old 90.5 inch radials, 94 inch loop, and radiator from about 27 to 30 feet. [/QUOTE]

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