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。

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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。

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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…

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The Russians said a number of rebel vehicles, anti-aircraft installations and communication facilities and a relay transmitter were destroyed.

BBC: Row over Chechnya 'atrocities'

The switchover is happening so that Freeview services can be extended to people who cannot currently get them, including those who receive their signal from a relay transmitter.

BBC: Northern Ireland digital switch catches some on hop

Grace Flint has a microphone the size of a shirt button, connected to a transmitter as thin as a credit card, that will relay any foolish admissions you might make to her from around the corner, or across the city, or from just about any place on earth.

CNN: Books - Excerpt: 'Flint'