To correctly adjust the direction of an antenna.

At the input side of a channel-selecting/demodulating part, an attenuator, a transmission line which is arranged in parallel with the attenuator, and a selecting part for selectively outputting an inputted RF signal via the route of the attenuator arranged in parallel or the route of the transmission line are arranged. Prescribed reception data from reception data are compared/determined with prescribed reference data which are predetermined in response to the prescribed reception data in a signal processing part so as to control the changeover of the selecting part based on the determination result. When selection is performed to display a content corresponding to the reception data at least, the selecting part controls the selection of the route of the attenuator or the transmission line. When the selection is performed to display a content corresponding to broadcasting data, the selecting part controls the selection of the route which passes the transmission line.