Because of HF transceiver has been widely used in the military field, so without its sophisticated testing equipment will give the security of our country's military communications hidden danger.

由于跳频收发信机已经在我国军事领域广泛应用，没有成熟的测试设备，会给我国军事通信的安全性造成隐患。

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The Rapiscan machines will be replaced by scanners made by L-3 Communications Holdings that use radio waves to detect suspicious objects hidden underneath clothes.

BBC: TSA to phase out Rapiscan 'naked scanners'