| 摘要 |
In a radio, a signal is transmitted through a control channel or a call channel by use of one transmitting circuit, and the transmission output of the call channel is intentionally changed. At the time of transmission of a signal through the control channel, a closed loop is formed in order to feed back a detection output value of the transmission output of the control channel to a transmission output control section, thereby controlling the transmission output of the control channel. In contrast, at the time of transmission of a signal through the call channel, the closed loop is canceled, thereby controlling the transmission output of the call channel.
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