Sirio Antenna Twin-Log 4 High Performance 1500 Watts Cb Mobile Fiberglass Antenna (4 Ft) Cb mobile antennas with heavy duty fiberglass rod, twin wire winding logarithmic loaded Frequency range: 26.65... 27.75mhz Max. power: 500 watts (cw) continuous, 1500 watts (pep) short time Connection: 3/8"x24 threads male, weight: 0.39 kg / 0.96 lb, height: 1250 mm / 4 ft Tunable by the top element real input power guaranteed, made in italy