Gain & Wave: 146MHz 6.5dBi 5/8 wave x 2 223MHz 7.8dBi 5/8 wave x 3 446MHz 9.0dBi 5/8 wave x 5. VSWR: Less than 1.5:1. 144.5-147.5MHz 220-225MHz 440-450MHz Max Power: 120 watts Length: 10' 4? Weight: 3 lbs 8 ozs Connector: SO-239. Construction: Heavy-duty fiberglass, 2 sections.