MFJ-945E Mobile antenna tuner Covers 1.8 to 60 MHz, New Now covers a 6-meter band and has an antenna bypass Switch! Don't go mobile without it! Don't leave home without this mobile tuner! Have an uninterrupted trip as MFJ-945E extends antenna bandwidth and eliminates the need to stop, go outside, and readjust your mobile whip. Handles 300 Watts. Super Compact Size, The small 8W x 2H x 6D inch black aluminum cabinet uses little room. The Cross-Needle meter shows SWR, forward, and reflected power -- at a glance. It reads forward/reflected power in 300/60 and 30/6 Watt ranges. ON/OFF lamp switch. Requires 12 volts for the lamp. (MFJ-1312D) Fast, easy tuning Convenient placement of controls makes tuning fast and easy while in motion. The antenna switch lets you bypass the tuner and still use the SWR/Wattmeter. The back panel has SO-239 connectors for the transmitter and coax and a wing nut post for your ground. 1000 Volt capacitors Efficient air wound inductor gives you lower losses and more Watts out. 1000 Volt capacitors. Covers 1.8 to 60 MHz Use it at home in your base station when you're not in your RV, boat, or car.