A tuner includes a first mixer circuit multiplying a first radio signal by a first local oscillation signal corresponding to a selected channel to generate a first baseband signal in a normal mode, and multiplying the first radio signal by a first local oscillation signal corresponding to a channel that is a target of search to generate a first baseband signal in a channel search mode, a second mixer circuit multiplying a second radio signal by a second local oscillation signal corresponding to the selected channel to generate a second baseband signal in the normal mode and the channel search mode, and a combining circuit combining a demodulation signal of the first baseband signal and a demodulation signal of the second baseband signal for output in the normal mode, and to output a demodulation signal of the second baseband signal in the channel search mode.