| 摘要 |
A portable radio apparatus of high reliability. A cellular phone consists of a plurality of radio antennas each of which receives radio waves and outputs a radio signal according to the intensity of the received radio waves, a modem that combines received two or more signals to producing a synthetic radio-wave signal; and two or more reception units that receive two or more radio signals outputted by the plurality of radio antennas and input to the modem two or more signals based on the outputted plurality of radio signals.
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