A radio terminal includes a first part that has a first gain switchable between first and second levels, a second part that continuously controls a second gain, and a control part. A first range of the combined gain of the first and second gains obtained by the second part with the first gain set at the first level and a second range of the combined gain obtained by the second part with the first gain set at the second level have at least an overlap. The control part switches the first gain from one to the other of the first and second levels if the combined gain is within the overlap and a change in the combined gain exceeds a predetermined value, or if the combined gain is within the overlap and the radio terminal is in a period of no transmission or reception in intermittent transmission or reception.