The SGR-Ligo is SSTL’s miniaturised Space GNSS (Global Navigation Satellite System) Receiver that supports the Cubesat PC-104 standard. The SGR-Ligo is low mass, low power and delivers position, velocity and time to Low Earth orbit satellites. It uses radiation tolerant core components; supports dual antennas and supporting 24+ channels capable of tracking GPS L1 signals, with options for GLONASS G1 and Galileo E1 signals.

The SGR-Ligo supports multiple interface standards including UART, CAN and I2C, and can be powered from either 3V3 or 5V spacecraft buses. The SGR-Ligo also supports the use of passive antennas for even lower power requirements.