As a new concept or system, SDR is re-programmable and re-configurable, and capable of supporting radio communications equipment of multiple radio communications systems and standards.

SDR是一个新的概念和体系，它是一个可重编程和可重构的，能支持多种无线通信体制和标准的无线通信设备。

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Solar flares can disrupt radio communications, including devices that use Global Positioning system technology, such as cell phones, airplanes and car navigation systems.

太阳耀斑能够干扰到无线电通讯，包括使用全球定位系统技术的设备，如手机、飞机和汽车导航系统。

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It enables a combination of video baseband, radio communicatons, satellite communications, and radar signals to be detected, monitored, and recorded simultaneously on a single system.

该设备能在单一系统同时探测、监控和记录视频基带、无线电通信、卫星通信以及雷达信号。

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He said a new radio system had already improved communications.

BBC: NEWS | UK | Criticism over Red Caps' deaths

Patriot missile components including advanced radar waveguides, microwave devices, high-speed analog to digital converters, microprocessors, precision gimbals for the missile-seeker system, highly miniaturized radio frequency communications, on-board sensors, advanced signal-processing systems.

CENTERFORSECURITYPOLICY: Center's Bryen Blows Whistle on Tech Transfer Fiasco

The government plans to expand a fully-featured system to provide alerts via television, radio, and "wireless communications" by March 2007, but until then, we suspect the ole "ear to the ground" method is the best you've got.

ENGADGET: Japan Meteorological Agency develops earthquake warning system