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Department of Information Technology
Contact us:
Chinook Building
401 Fifth Ave.
Seattle, WA 98104

Phone: 206-263-4357
Fax: 206-296-6511

Radio Communication Services

Regional 800MHz trunked radio system

Radio Tower

The largest system supported by RCS is the regional 800 MHz trunked radio system. The regional radio system is comprised of owners from the City of Seattle, Valley Communications Center, the East Side Public Safety Communications Agency and King County. RCS services and supports both the King County and Valley Communications Center subregional systems. Countywide this system consists of 27 transmitter sites, multiple interconnecting microwave and fiber systems, and multiple public safety dispatch centers. The system supports approximately 14,000 radio users in county and suburban agencies, including police, fire, Emergency Medical Services (EMS), general government functions, school districts, water and sewer districts, etc.

The King County Regional Communications Board is responsible for the coordination of this system. Read more about the Regional Communications Board, including meeting schedules and minutes.

Other radio services

Other radio services

RCS also provides radio and mobile data radio programming, radio template development and installation, and user training. We are also responsible for the installation of mobile radios, mobile data radios and computer equipment in a variety of King County vehicles, including the King County Sheriff's Office's fleet.

RCS also provides installation and support services to a wide variety of other local government agencies. With a well equipped shop and field service vehicles, RCS provides a full line of radio services to our customers, from bench level repair of radio equipment, to shop and field radio installation and maintenance, to mountain-top transmitter site maintenance.