// ORBITAL LOGISTICS AND PROPULSION TERM
S-Band
A specific range of radio frequencies (2 to 4 GHz) commonly used for satellite communications, radar, and some terrestrial wireless networks.
TECHNICAL DEFINITION
S-Band is a microwave frequency range spanning 2 to 4 gigahertz (GHz), designated by the IEEE, widely utilized in satellite communications (e.g., NASA's Deep Space Network, ISS communications), radar systems, and terrestrial wireless applications.
SYNONYMS & ALIASES
- S-frequency
- S-band spectrum
- 2-4 GHz band
USAGE NOTE
S-Band is often used for telemetry, tracking, and command (TT&C) of spacecraft.
DEVELOPERS
Organizations developing technology related to S-Band.
Operated by the Jet Propulsion Laboratory (JPL), the DSN is NASA's international network of large antennas and communication facilities that supports interplanetary spacecraft missions, and some Earth-orbiting missions. S-Band is a primary frequency used for telemetry, tracking, and command (TT&C).
ESA operates the European Space Tracking (ESTRACK) network, a global system of ground stations providing links between satellites in orbit and the European Space Operations Centre (ESOC). S-Band is fundamental for their TT&C operations for a wide range of missions.
A major aerospace and defense contractor that designs, develops, and manufactures a wide array of space-qualified communication systems, including S-Band transponders, transmitters, receivers, and antennas for satellites, launch vehicles, and other space platforms.
A leading European satellite manufacturer that integrates advanced S-Band transponders and communication subsystems into the satellites they build for telecommunications, navigation, Earth observation, and scientific missions.
A world-leading provider of ground station services for satellites. Their global ground network heavily utilizes S-Band antennas to provide tracking, telemetry, command, and data downlink services for a large number of commercial and government satellite operators.
While known for broadband services, Viasat also operates a global Real-Time Earth (RTE) ground station network that offers S-Band services for Earth observation and remote sensing satellites, enabling low-latency data reception.
A global provider of advanced space services. SSC's global fiber-optic ground station network, SSC Connect, offers comprehensive S-Band support for the entire satellite lifecycle, from launch and early orbit phase (LEOP) to routine on-orbit operations.
A French company specializing in radiocommunication and geolocation systems. They design and manufacture compact, high-performance S-Band transceivers and transmitters specifically for the small satellite (SmallSat and CubeSat) market.