The T2000 Series mobile CB trucker antenna with 5-inch shaft in black with 49-inch stainless steel whip rated at 3500 Watts. Standard .375-inch x 24-inch chromed brass ferrule. Larger coiled housing allows for increased power handling. The patented low loss air wound coil design uses 10-gauge silver plated wire. The black coil is made of high impact engineered thermoplastic. Frequency range of 26MHz to 30MHz for happy distance. Includes static-reducing weather cap and is weather-band ready. Set screw and hex key included for fine tuning. The Wilson Trucker will operate excellently in a dual configuration. Ideally this should be mounted so that the coil is above the vehicle body of your truck. (Not for use with a magnetic mount) The Wilson 305-492 T2000 Series CB Trucker Antenna is a popular choice among truck drivers and CB radio enthusiasts. This antenna is designed to provide high-performance communication for those who need it on the go.