Scottsdale, Ariz.-based General Dynamics C4 Systems, which has a manufacturing facility in Taunton, Mass., has demonstrated the networked-communications capabilities of its handheld, manpack and small form fit radios in recent government-run field tests. The tests have proven the radios’ interoperability, range, video transmission and networking abilities. Each of those is considered critical to the Department of Defense’s objectives of increasing connectivity among soldiers and military units. General Dynamics, the parent company of the Electric Boat shipyard in North Kingstown and Groton, Conn., will further demonstrate the radios’ capability at the Association of the United States Army Conference in Washington, D.C., this month.