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日本原装的JAPAN COMO-25000 MARKⅡ型无绳电话机具有体积小,功率大(座机发射功率为2.5W,手机发射功率为1.2W),灵敏度高等优点,当其使用理想的室外高架天线时,通信距离可达5km以上,是一种性能较好的中功率无绳电话机。美中不足的是该机的座机上未设置送、受话终端电路,仅分别在座机和手机上设有蜂鸣呼叫信号的发送和接收电路,因而座机与手
Japan’s original JAPAN COMO-25000 MARK Ⅱ cordless phones with small size, high power (landline transmit power of 2.5W, cell phone transmit power of 1.2W), the advantages of high sensitivity, when using the ideal outdoor antenna, the communication distance Up to more than 5km, is a good performance in the power cordless phone. The fly in the ointment is that the aircraft’s landline is not set to send, by the end of the terminal circuit, respectively, only in the landline and mobile phone with a beeping call signal sending and receiving circuits, so the landline and hands