Harris County Regional Radio Center: Provides and manages mobile and portable radio communications for county departments and qualified agencies. Located in Texas, USA.
Multi-Agency Radio Communications System (MARCS): Provides information on the new 800-megahertz, voice and data network for the Ohio highway patrol and other health, safety and emergency agencies. Includes downloadable documents in pdf format .
NYPD - Communications Division: Provide and support a telephone and radio communications system for the New York City emergency services .
Shelby County Alabama 9-1-1 Center: Provides information on provided services including staff, statistics, scanner frequencies, and education. Includes a photograph gallery .
