Calvert County (MD)

Calvert County has several trunked radio systems (TRS) as well as a few conventional frequencies that make for interesting monitoring. Also, being close to the Chesapeake Bay means that these radio systems may be heard more easily by others along the Bay.

County Public Safety and Government

Calvert County is currently (as of March 2021) switching all public safety communications over to a new P25 Phase 2 TRS. The legacy Motorola SmartNet TRS is still operational and traffic can be heard on both systems.

• Calvert County (P25) - New system
• Calvert County (P16) - Legacy system
• Calvert County Schools - School Bus communications

Federal Government

• Joint National Capital Region - Military TRS

Business Communications

• Calvert Cliffs Nuclear Power Plant
• Cove Point Liquid Natural Gas Terminal
• Other local businesses

Related Links

• Calvert County (MD) Fire Tone Outs

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