A team of Air Force researchers and industry engineers have completed a major system-level test of the interfaces between the first space based infrared systems satellite and the satellite’s ground segment. The Air Force anticipates launching this SBIRS satellite, designated GEO-1, in early 2011. This test successfully demonstrated that the SBIRS ground segment will be able to command and control GEO-1 using a modem called the tri-band antenna/modem suite, said officials in the SBIRS program office at Los Angeles AFB, Calif., in a July 29 release. Among the additional test objectives achieved, the team demonstrated the ability to transmit and receive data between GEO-1 and the ground systems using rapidly changing frequencies, a process known as “frequency hopping,” they said. This test took place over two days.
The advanced F-47 sixth-generation fighter remains on track to fly in the next two years, the senior Air Force acquisition officer overseeing the program said Feb. 25, as the service continues on its ambitious schedule to debut the air superiority-focused fighter by 2028—only three years after the contract was awarded…




