Harris Corp. has been awarded follow-on contracts by the U.S. Navy totaling nearly $30 million to upgrade the Tactical Airborne Moving Map Capability (TAMMAC) Digital Map System. The Digital Map Computer provides military aircrews with sophisticated moving maps and other critical mission information via cockpit displays. Under the contracts, Harris will deliver 14 pre-production digital map systems containing new embedded graphics cards that generate two independent, high-resolution digital map channels to enhance aircrews' situational awareness. The company also will supply 158 TAMMAC digital map computers and 132 TAMMAC digital video map computers (DVMCs). Seventeen of the DVMCs will be provided to the Royal Australian Air Force.