Generally discussed herein are techniques, software, apparatuses, and systems configured for tuning an antenna. In one or more embodiments, a method can include sending, by processing circuitry, one or more signals to an antenna tuner to sweep the tuner through a plurality of tuner states, determining a plurality of power values, each power value corresponding to a signal received from an antenna and each power value corresponding to the tuner being in a state of the plurality of tuner states, and sending one or more signals to the tuner to set the tuner to a tuner state of the plurality of tuner states, the tuner state determined using the determined powers.