Image of Satlab A/S - SRS-4 Full-duplex High-speed S-band Transceiver on the satsearch marketplace

Key highlights

The Satlab SRS-4 is a full-duplex S-band transceiver designed for high-speed data transfer on micro- and nano-satellites.

The transceiver operates on the ITU space operations S-band frequencies with BPSK, QPSK and 8PSK modulation and CCSDS recommended channel coding, enabling integration with both independent and commercial ground station networks.

The main features include:

Variable transmit symbol rate up to 5 MBd
BPSK, QPSK and 8PSK transmit modulation
BPSK and QPSK receive modulation up to 5 MBd
Run-time configurable convolutional and/or Reed-Solomon forward error correction
Adjustable output power up to 33 dBm with power monitoring and regulation
CAN-bus and RS-422 interfaces using CubeSat Space Protocol (CSP)
Ethernet interface using IP
AES-256-GCM link-layer encryption and authentication
PC/104 form factor aluminum enclosure
Delivered with support library for easy integration
Fully on-orbit software upgradable

Flight heritage

The SRS-4 has demonstrated reliable flight heritage since 2021, with over 100 units successfully delivered to customers around the world for a multitude of space missions. With a TRL of 9, it is fully qualified and operational in its intended environment.

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Last updated: 2025-05-01