Question

What is the approximate length for a 1/4 wave vertical antenna cut for 28.5 MHz?

Answer 1

1/4 wave length antenna

take 300 and divide by the frequency. So 150 MHz becomes 2 meters, 300 MHz becomes 1 meter, 600 MHz becomes 1/2 meter. Then take the length in meters and multiply by 3.28 to convert to feet (unless you want to remain metric). Take that result and divide by 4 for 1/4 wavelength.Nov 20, 2006');})();(function(){window.jsl.dh('6','

1/4 Wave Antenna. | RadioReference.com Forums

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Search for: How long is a quarter wave antenna?

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The most common form is the quarter-wave monopole, in which the antenna is approximately one quarter of the wavelength of the radio waves.