U-7000 is a PLL Synthesized dual channel UHF wireless microphone system with 16 user selectable channels.

是一个相位锁定频率合成UHF双频道的无线话筒接收系统，具备16 个预设的互不干扰频道供选择。

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In parceling out the airwaves, the FCC devotes skimpy spectrum to the booming market for 200 million cell phone users in the U.S. yet preserves barely used bandwidth for old UHF channels.

FORBES: Magazine Article