Glossary
Definitions
2 definitions
Uplink / Downlink
The two directions of a satellite communication link: the uplink is the radio transmission from Earth to the satellite; the downlink is the transmission from the satellite back to Earth. Each uses a different frequency band to avoid self-interference between transmit and receive paths.
User Segment
The customer-facing equipment of a satellite system — including VSAT terminals, satellite phones, flat-panel antennas, GPS receivers, and IoT devices — that accesses the satellite service and represents the primary interface between the end user and the space infrastructure.