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is the result of an FCC Order issued in December 2004 mandating that all CFR 47 Part 90 business, educational, industrial, public safety, and state and local government 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

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