The remote control device crystal frequency stabilization using pulse amplitude modulation transmitter, A simpler circuit, high frequency stability, launched 28MHZ are continuous carrier amplitude.

该遥控装置采用晶体稳频脉冲调幅发射机，电路较简单，频率稳定度高，发射的是间断的28MHZ等幅载波。

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Mud pulse modulation data flow is thin, but current transmitter as far distance transmission means has been widely applied other field, technology is mature.

泥浆脉冲方法目前应用较多，但数据流量稀疏，电流环技术作为远距离传输手段已被广泛的应用于其它领域，技术成熟。

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This paper introduces the design method of a kind of distributed pulse power system for solid-state radar transmitter and sharing-current technique.

介绍了一种固态雷达发射机的分布式脉冲电源系统的设计及均流技术。

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The machine that Dr O'Brien and Dr Frazier have designed to get round these constraints consists of a transmitter that sends out a pulse of sound at a frequency of 6 kilohertz, and an array of 52 receivers that collect the reflections from anything buried beneath the surface.

ECONOMIST: Archaeology

Since, in the case of radar, the receiver is also the transmitter, it knows exactly when a pulse was sent.

ECONOMIST: How to look through walls