History of MPSCS

Planning and Implementation

The implementation process of MPSCS began in 1984 when the Michigan State Police formed a committee to evaluate its 1940's era two-way radio system. The committee consisted of several state departments including State Police, Natural Resources, Transportation, Management and Budget, Military Affairs and representatives of the state House and Senate Fiscal Agencies.

The committee recommended building a new system. They further decided the new network would be large and flexible enough to support all state and local public safety agencies. In 1992, after several years of system design planning and cost studies, specifications for a request for proposal were finalized and sent to potential vendors.

In June 1994, the Michigan Legislature approved the funding for the new system. Motorola was awarded the contract to build MPSCS.


In September 1995, Michigan celebrated the achievement of the system's first major milestone when the state broke ground on Phase One construction. Phase One, which constitutes all of southeast Michigan, including the Detroit, Jackson and Lansing areas was officially completed in 1997. In 1998, the second major milestone was reached when Phase Two, which includes all of southwest lower Michigan, was brought online. The completion of Phase Three, the northern Lower Peninsula followed in 2000. In the fall of 2002, the original construction of the system ws completed by providing 800 MHz digital radio coverage to the entire Upper Peninsula. Completion of the project included the ASTRO® 25 6.0 upgrade in November 2002.

Serving Michigan First Responders

The attack on the Twin Towers on September 11, 2001, brought to the forefront the need for interoperable communications. MPSCS is reacting to this need by providing a state-of-the-art statewide communications Today local first responders are integrating simulcast subsystems into the MPSCS system. This is a win-win for the new local users who experienced the benefits of MPSCS system interoperability and core system management as well as current MPSCS subscribers who received enhanced radio coverage.

The August 2003 blackout, which was the largest in United States history, proved the value of MPSCS. While commercial wireless carriers were failing due to overuse and lack of emergency power systems at their tower sites, MPSCS continued to provide dependable uninterrupted communications to its users. MPSCS also played a role to State of Michigan Emergency Management through its Network Communications Center, by identifying the blackout area through its alarm and control capabilities. Recently, MPSCS has provided interoperable communications for multiple agencies for large scale events like the 2005 All-Star Game and the 2006 Super Bowl.

In 2006 the MPSCS again updated its operating system platform, enhancing security, enabling over the air re-keying of encryption, and adding data capabilities.

The MPSCS is managed by the Office of Michigan Public Safety Communications System within the Michigan Department of Technology, Management & Budget.

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