How Do Satellites Communicate?
TT&C Satellites communicate through a complex system of telemetry that connects and transmits signals between satellites and earth-bound stations. This system begins with TT&C (telemetry, tracking, and command) subsystem which tracks and directs signals. TT&C produces signals that are directly commensurate to the quantity that is being measured, encoding and transmitting these signals to distant stations on earth. The transmitted data includes everything from information produced from sun/earth sensors to environmental data. Command and Tracking Systems The signals that are communicated between ground systems and satellites are made possible through command and tracking systems which transmit and track satellites. Command systems receive, decode, and send commands and instructions from ground systems to satellites. In tracking systems, satellites communicate beacon signals that are received by the TT&C subsystem. These signals track the satellite’s movements during various shifts cause
