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Charge Area of Regional Bureau of Telecommunications
Radio Wave Environment
Radio Wave Environment
Protection from Radio Wave Environment
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Overall Structure of Disaster Prevention Administrative Radio System
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Spectrum User System
Fixed Radiocommunications
Administrative Radio System for Disaster Use
Overall Structure of Disaster Prevention Administrative Radio System
Division in Charge:Public Safety Radio Communications Office
Administrative Radio System for Disaster Use
Overall Structure of Disaster Prevention Administrative Radio System
Changes Seen in the Number of Disaster Prevention Administrative Radio Systems in Cities Towns and Villages
