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。
2
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。
3
Booster relay, Air-valve, Lock-valve, Speed-controller, Position transmitter…