SCT7272 – Satellite Communication Trainer What is satellite communication? You know there are many satellites flying in the sky above your head every minute. Why are those satellites there? For fun? Nah they are used to transmit signals between different places around the Earth. There are three main parts of a satellite communication network Uplink Transmitter Satellite Transponder Downlink Receiver What is an Uplink Transmitter? The uplink transmitter is located on Earth, and it is the source of the transmission. It could be a telecommunication company, a television channel, or even an office. What is a Satellite Transponder? A satellite transponder has both a receiver unit and a transmitter unit. It is located in space. The uplink transmitter sends signals to the transponder’s receiver. The transponder communicates with the uplink transmitter using a specific frequency channel. What is a Downlink Receiver? This unit is located on Earth, far away from the uplink transmitter, sometimes...