The RTLS solution USES a matrix of sensors, one for each zone, to receive radio signals emitted from an active RFID tag affixed to the automobile's frame.

RTLS解决方案使用了一组传感器(每个工作区分配一个传感器)来接收汽车车架上附加的活动rfid标签发出的无线信号。

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Created by SPAWAR System Center Pacific, the sea water antenna USES the magnetic induction properties of salt to make ordinary ocean water transmit and receive radio signals.

由海军空间和海上作战系统司令部太平洋系统中心制造的海水天线，利用盐的磁感应特性使普通的海水发射和接收无线电信号。

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A receiver and amplifier receive the radio waves from the sub reflector, and make these weak radio waves strong enough to be recorded and turned into electronic signals.

接收器和放大器接收来自副反射器的无线电波，并使这些微弱的无线电波强大到足以被记录下来并转化成电子信号。

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MicroChips' titanium-encased device is about the size of a pager and has a novel flat antenna on one side that can transmit and receive radio signals from several feet outside the body.

FORBES: Health

Notably, the deal wouldn't require the companies to include technology in their radios allowing consumers to receive digital signals from local radio stations.

WSJ: FCC Commissioners Will Approve XM-Sirius Deal

The problem with the craft's back-up radio was that it could only receive signals in a very narrow frequency range which turned out to vary according to its temperature.

ECONOMIST: The long arm of the celestial repairman