MFJ-1729 Magmount antenna 2m/70cm, 2ft, 12ft coax Dual Band 144/440 MHz Magnetic Mount Mobile Antenna MFJ's "Power Gain" most powerful dual band Mag Type Mobile Antenna Gain: 2.6 db on 2 Meters, 6.3db on 440 MHz Power Rating: 300 Watts Perfect for Dual Band Mobiles or HTs