MMRA is a non-profit organization providing communications infrastructure and volunteers for community and emergency events. We operate and maintain a system of over twenty repeater systems in Eastern and Central Massachusetts which are made available to provide communications at public events such as the Boston Walk for Hunger, the Boston Marathon, the Head of the Charles Regatta, and many other charity walk and bike events.

When not being used for events or emergencies, our repeaters are open to all radio amateurs for casual and friendly chatter. This helps us know that are repeaters are operating in tip-top form. We also host a variety of drills, including a monthly ARES net, generally the first Monday of the month as well as our weekly MMRA "Technical Information and Other Stuff" each Tuesday at 8PM