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Last Updated: July 31, 2021, 9:24 am
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State of Maryland Radio Reference
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Go to a County
County pages contain radio communications information for all agencies and services within a County
Choose County
Allegany
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Baltimore
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Washington
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Maryland State Agencies
Frequencies for Maryland public safety agencies
Choose Agency
Common/Shared
Department of General Services
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Go to Metro Area
Metro area pages are a collection of links to county and agency information for a defined Metro area.
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Maryland Areawide Frequencies
Misc areawide frequencies in Maryland.
Please also see our
United States nationwide frequencies
page here.
Choose Agency
Civil Air Patrol
Federal
Maryland Railroads
Utilities
New York (ZNY) Air Route Traffic Control Center
Washington (ZDC) Air Route Traffic Control Center
Areawide Trunking Systems in Maryland
First Responders Interoperable Radio System Team (FIRST)
Project 25 Phase II
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