Comtech Communications Corp. said its Comtech EF Data Corp. and Comtech Vipersat Networks Inc. subsidiaries received two contracts for the deployment of satellite communications technologies to the Asia Pacific region. The combined value of the contracts is $5.3 million. Comtech will deploy its Vipersat Management system, a capacity and bandwidth management software solution, and its CDM-570/L, CDM-600 and CDM-600/L satellite modems. The equipment will be used to provide mission-critical air traffic control operations and to enhance and expand GSM cellular phone system infrastructure.