Land Mobile Radio Service

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The Land mobile service,[1] or Land mobile radio service, is regulated in the United States by the Federal Communication Commission (FCC) in CFR 47 Part 90 for non-federal government wireless use between land-based mobile and fixed stations. The National Telecommunications and Information Administration (NTIA) performs similar functions for federal government spectrum users.

FCC LMR Narrowbanding Mandate[edit]

LMR Narrowbanding is the result of an FCC Order issued in December 2004[2] mandating that all CFR 47 Part 90 business, educational, industrial, public safety, and state and local government [3] VHF (150-174 MHz) and UHF (421-470 MHz) Private Land Mobile Radio (PLMR) licensees operating legacy wideband (25 kHz bandwidth) voice or data/SCADA systems to migrate to narrowband (12.5 kHz bandwidth or equivalent) systems by January 1, 2013.

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