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NEC Rototiller FM Antenna and Tower Dataset From Nittany Scientific.

This study shows how a typical FM Omnidirectional antenna is actually quite directional. So called Rototiller antennas are made, for example, by Electronics Research Incorporated, a company that has sold a lot of antennas in the United States.

A GNEC NEC3 STUDY OF A TYPICAL "OMNI" FM BROACAST ANTENNA

    ANTENNA - NO TOWER


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    ANTENNA - AND TOWER


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    ANTENNA - 20 INCHES REMOVED FROM TOWER


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