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202021-12In a digital walkie-talkie, the analog voice signal is first converted into a digital signal through A/D conversion and voice coding. Because the bandwidth of the digital walkie-talkie is relatively narrow,
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202021-12The walkie-talkie is mainly used in public security, civil aviation, transportation, water conservancy, railway, manufacturing, construction, service and other industries.
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202021-12POC walkie-talkies rely on mobile cellular communication base stations and Internet platforms all over the world to realize a series of information processing and connection services for intercom voice.
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