The City of Boston is upgrading their current analog UHF radio system to a digital P25 system. Currently they operate over forty radios sites for land mobile communications. The sites are utilized by Boston PD, Boston FD and Boston EMS. The sites are in varying age and condition. Macro is assisting in design reviews, site upgrade designs for electrical, HVAC, R56 grounding and antenna systems. Macro is also working with the City on the design of a new microwave interconnect backbone with redundant capabilities. In addition to design efforts Macro will help with the acceptance testing of the subsystems that make up this new P25 network as well as providing FCC regulatory support.