Sirio Performer 5000 3/8 10m & CB Mobile Trucker Antenna (for 3/8 24 mount) Type: Trucker Antenna CB & 10m Mobile antennas Very High power handling capability Tunable from 27 to 30 MHz 17/7 PH tapered stainless steel whip Whip detachable for car-wash Type: Trucker Antenna Frequency range: 27 ... 30 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 Connection: 3/8