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The QM7 antenna is a simple 7 elements Yagi with 3.70 m boom length for the lower 144 MHz SSB/MGM band, used it mainly for Sporadic-E and MS contacts. It exhibits a forward gain of 11.35 dBd; i.e. 13.5 dB forward gain over the isotropic radiator, while the F/R is about 12.5 dB
2M : Antennas/2M Antennas for 2 meters band
QM7 7 elements 144 MHz Yagi-Uda Antenna is listed on dxzone.com since 2005-05-26
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