| 摘要 |
PURPOSE:To recording a message and stop a recorder automatically through the operation of the talk button of an opposite station, by providing base station radio equipment such as a transceiver, with a voice synthesizing circuit, a magnetic sound recording and reproducing device, a changeover relay, etc. CONSTITUTION:When base station radio equipment A is in a reception standby state, a radio wave generated by turning on a talk switch 102 is received from an opposite station B and processed by amplification 2 and detection 3, and a holding circuit 4 is set by the DC component of the resulting signal. Then, a circuit 4 turns on a transistor TR1 to supply current to a voice synthesizing circuit 6, a relay Y-1, a modulation part 7, and a high frequency power part 8, and consequently a contact y1-1 is switched to send a meassage and a peep tone out of the circuit 6. After the transmission, the circuit 4 is reset and while the TR1 is turned off, a TR2 is turned on through an FFIC-3 to supply current to a sound recorder 9 and a timer 10. At the station B, the peep tone is heard and the switch 102 is pressed to send a meassage, which is recorded by the recorder 9. When the switch 102 is turned off at the station B, the IC-3 is reset and the operation of the recorder is stopped to reset the station A to the standby state. |
