The TM/TC processor study report

Requirements of a TM/TC Front End Equipment (FEE) for ESA spacecraft, particularly communications spacecraft using conventional and packet command and telemetry systems are specified. Parts necessary to form a comprehensive test system for checking operational spacecraft systems in conjunction with the master test processor and the checkout equipment are described. The use of TM/TC FEE at subsystem integration level, spacecraft system test level and as front end to a ground station operational control center is discussed. A self contained test system, including its digital handling capabilities, microwave measurements, the software, and self checking possibilities were examined.