Comet Original GP-6 146/446 MHz Dual-Band Vertical Base Antenna 6.5/9.0 dBi, 10' 2" Max Power: 200 Watts SBB/100W FM VSWR: 1.5:1 or less Length: 10' 2", Weight: 3 lbs 8 oz Connector: SO-239, Construction: Heavy-duty fiberglass, 2 sections Gain & Wave: 146MHz 6.5dBi 5/8 wave x 2, 446MHz 9.0dBi 5/8 wave x 5