The advantages of using a spectrum analyser to measure image rejection ratio of a tuner are direct in observation, accurate in reading, easy in operation and so on.

用频谱分析仪测量调谐器的假象抑制比，具有显示直观、读数准确、测试简便等优点。

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Apple already makes the Apple TV streaming device, it sells monitors, adding a TV tuner would be easy, its iTunes Store and software would be a much better interface for finding TV shows, and it has developed a number of technologies in the past year or so that make it easy to shuttle video from iPads, iPhones, and Macs to a TV screen.

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Likewise, the radio tuner and navigation systems were easy to program and adjust en route.

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