Apptis and SmartLink Radio Networks recently announced a $3 million contract from Solano County, Calif., to design and deploy an interoperable radio system that will let the county’s public-safety agencies to communicate with each other.

The backbone of the system will be provided by SmartLink’s I-Network platform, which is expected to increase the capacity and coverage of the multi-channel VHF system used by the county’s sheriff, fire and emergency management departments. Public-safety agencies in various cities also will use the system--including Benicia, Dixon, Fairfield, Rio Vista, Suisan, Vacaville and Vallejo--as will six regional public-safety answering point dispatch centers.