The device operated on tiny power cells and had a built-in antenna. Its transmitter would relay data from the device by means of coded pulses.
该装置依靠微型电池驱动，设有内置天线，它的发射器可以利用各种编码脉冲进行数据中转。
This paper presents the principles and characteristics of the following modules: power amplifier, phase modulator and up converter, which are used in the transmitter of 1GHz microwave relay system.
本文介绍了用于微波中继系统发射机的功率放大器、调相器、上变频器等组件的原理和特性。
Booster relay, Air-valve, Lock-valve, Speed-controller, Position transmitter…
增速器、气控阀、锁止阀、调速器、阀位变送器…
E/P Positioner, P/P Positioner, Air-set, Booster relay, Air-valve, Limit switch, Solenoid valve, Lock-valve, Speed controller, Position transmitter, etc.
定位器、P/P定位器、空气过滤减压阀、气动加速器、气控阀、限位开关、电磁阀、闭锁阀、速度控制器、阀位传送器等。
Optical Receiver; CATV products; optical Transmitter; trunk Amplifier; Subscriber Amplifier; Spliter; Taps; Optical Relay;
光纤放大器；光接收机； 光发射机；分配器；
Optical Receiver; CATV products; optical Transmitter; trunk Amplifier; Subscriber Amplifier; Spliter; Taps; Optical Relay;
光纤放大器；光接收机； 光发射机；分配器；
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