Sirio Antenna Titanium 3001 PL CB 10Meter Radio Mobile Antenna, 300W Continuous, 900W Pep CB & 10m mobile antennas tunable from 27 to 28.5 MHz protection from static discharges dc-ground 17/7 ph. tapered stainless steel Type: base loaded frequency range: 27 ... 28.5 MHz impedance: 50 polarization: linear vertical Bandwidth @ SWR 2: 1300 kHz (1115 channel) SWR @ res. Freq.: 1.4 max. Power: max. Power: 300 watts (CW) continuous, 900 watts (cw) short time Mounting: PL version: UHF-male (PL 259)