Data communication systems that employ modulation techniques requiring good low-frequency response place unique demands on PLL-based frequency synthesizers.

使用调制技术的数据通信系统需要良好的低频响应，是对基于PLL频率合成器的数据通信系统的重要要求。

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The software will enhance situational awareness and facilitate communication and sharing of data across multiple systems.

该软件将增强态势感知能力，促进通信能力和跨多个系统的数据共享。

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Data processing and communication between processes involves multiple systems and redundant processing.

流程之间的数据处理和通信涉及多个系统和冗余处理过程。

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He planned to feed them fake or booby-trapped data via well-known radio communication systems.

BBC: Hacker targets flight deck computer systems

ViaSat also offers design capabilities and a number of complementary products including monolithic microwave integrated circuits and modules, DVB-S2 satellite communication components, video data link systems, data acceleration and compression, and mobile satellite antenna systems.

ENGADGET: ViaSat-1 sends its first words through the stratosphere to cooing stateside relatives

Today, after three stunning deals, it has transformed itself mainly into a communication-systems company, focused on the opportunities created by the explosion in data traffic.

ECONOMIST: Lord of the switch?