The Z-11Pro provides fully automatic, any- mode antenna tuning across the entire HF range plus 6 meters at power levels to 125 watts. It will tune dipoles, verticals, Yagis or virtually any coax-fed antenna. It will match an amazing range of antennas and impedances, far greater than some other tuners you may have considered. The Z- 11Pro is designed with battery-powered operation in mind; it uses little power while tuning, and with its latching relays, uses essentially no power in standby.