RADIO COMMUNICATION DEVICE

PROBLEM TO BE SOLVED: To implement stable communication even in a noisy environment.SOLUTION: A radio communication device includes: variable gain amplifiers 233, 234 for amplifying signals received by antennas 21, 22 with gains set by first and second gain setting signals; a differential amplifier 235 for outputting a difference between output signals of the respective variable gain amplifiers 233, 234; an amplitude monitor section 31 for detecting an amplitude of the differential amplifier output; and a separation control section 32 for determining such first and second gain setting signals as produce a minimum variation in the amplitude of the differential amplifier output. This can provide a communication system that can separate noise from signals received by the antennas 21, 22 to implement stable communication even in a noisy environment.