| 摘要 |
<p>PROBLEM TO BE SOLVED: To reduce a cost and to provide a relay function even in radio equipment for a mobile station by permitting a repeater part to change the transmission frequency of an output signal from a transmitting part and the reception frequency of an input signal from a receiving part in accordance with a command from a control circuit and automatically changing-over opposite party stations. SOLUTION: A squelch signal 106 and a reception output signal 104 are converted and, then, transmitted to the transmitting part 101. The part 101 converts a PTT press signal 105 and a modulation input signal 103 into output signals and transmits them. When the reception frequency of the input signal from the receiving part 102 is f1, the transmission frequency of the output signal from the transmitting part 101 is f2. In the meantime, when the reception frequency of the input signal from the receiving part 102 is f2, the transmission frequency of the output signal from the transmitting part 101 is f1. The reception frequency of the input signal to the receiving part 103 and the transmission frequency of the output signal to the transmitting part 101 are changed-over so that communication executed between the second and first mobile station 109 and 110 is relayed.</p> |
