There is provided a portable radio that enables simultaneous input of high frequency signals from a plurality of built-in antennas and performance of optimum receiving operation.A portable radio 1 include a first built-in antenna 10A; a first low noise amplifier 122A that amplifies a signal from the first built-in antenna 10A; a first receiving section 124A that carries out a predetermined receiving operation to a signal from the first low noise amplifier 122A; a second built-in antenna 10B that is lower than the first built-in antenna 10A in terms of a gain; a second low noise amplifier 122B that amplifies a signal from the second built-in antenna 10B; a second receiving section 124B that carries out a predetermined receiving operation to a signal from the second low noise amplifier 122Bo; and a receiving circuit section 123 that carries out a predetermined diversity processing to the signals undergone receiving operation when both of the receiving sections 124 perform receiving operation.