Modernized Navstar Security Algorithm (MNSA) M-code Testing

SimMNSA - Spirent Federal Systems

The M-code signal is part of the security architecture that all new Military GPS User Equipment (MGUE) has been required to use since 2017. Until recently, testing with non-classified AES-encryption and replay of M-code Satellite Data Sets (SDS) have been the only methods authorized for GPS M-code receiver testing using a constellation simulator.