Exelis has delivered six enhanced ground encryptors to Raytheon, which in turn will use them for the GPS Next-Generation Operational Control System (GPS OCX).
The Air Force will use the encryptors to protect information sent between OCX and navigation payloads aboard GPS satellites, according to Exelis. The encryptors are an essential component in the management of cryptographic keys used throughout the ground system.
The enhanced encryptors support M-code, the modernized military signal, according to the company. M-code provides a separate signal with high jam-and spoof-resistance strictly for military use.
“Some of today’s GPS satellites can broadcast M-code signals, but unlike GPS OCX, the current control segment cannot bring M-code online. The encryptors will be enablers for M-code processing to improve the overall GPS program and its security,” said Joe Rambala, Exelis’s vice president for positioning, navigation and timing.




