DUAL MODE RADIO REPEATER AND RADIO RELAY METHOD

摘要

PROBLEM TO BE SOLVED: To provide a small and lightweight radio repeater system by receiving a digital modulating signal from a master station, generating a transmitting analog modulating signal and a transmitting digital modulating signal from the received digital modulating signal and outputting these transmitting analog and digital modulating signals. SOLUTION: A radio repeater receives a digital modulating signal that is transmitted from a master station and transmits the digital and analog modulating signals on the basis of the digital modulating signal. A digital modulating transmission radio part 211 of the radio repeater inputs an in-phase component 209 and an orthogonal component 210 of an orthogonal base band signal that undergone the digital modulation and outputs a digital modulating signal 212 via a digital modulating transmission antenna 213. An analog modulating transmission radio part 219 inputs an in-phase component 217 and an orthogonal component 218 of an orthogonal base band signal that undergone the analog modulation and outputs an analog modulating signal 220 via an analog modulating transmission antenna 221.