Sirio Performer 5000 PL 10m & CB Mobile Antenna with Sirio Mag 145 PL Mag Mount CB & 10m Mobile antennas Very High power handling capability Tunable from 27 to 28.5 MHz Protection from static discharges DC-Ground 17/7 PH tapered stainless steel whip Whip detachable for car-wash Suitable for magnetic mount installation Type: base loaded Frequency range: 27 ... 28.5 MHz Impedance: 50  Polarization: linear vertical SWR res. freq.:  1.2 Bandwidth SWR  2:  2000 KHz (200 channel) Max. power: 1500 Watts (CW) continuous 5000 Watts (CW) short time Connector: UHF Sirio Mag Mount for Amateur or CB aerials requiring the SO239 fitting. Very high quality, Sirio is well known for its aerials and accessories.