Firestik MURS45 45 in. Murs Mobile Antenna - .63 Wave Frequency Coverage: 151.820-154.600 Mhz. Exceptional Low Angle of Radiation for Optimum Propagation. Nominal Impedance of 50-52 Ohms. Isotropic Gain of 6dB. Power Handling: 400 Watts AM/FM 800 P.E.P.