Srs-4 Satlab
: The transceiver supports highly spectral-efficient modulation schemes. The transmitter handles BPSK, QPSK, and 8PSK up to a symbol rate of 5 MBd, while the receiver supports BPSK and QPSK up to 5 MBd.
The is a high-speed, full-duplex S-band transceiver designed specifically for telemetry, tracking, and control (TT&C) as well as high-speed data transfer on micro- and nano-satellites. It is a Software Defined Radio (SDR) platform that has achieved a Technology Readiness Level ( TRL 9 ) with extensive flight heritage since 2021. Key Features
The is a high-performance, full-duplex S-band transceiver built specifically for high-speed data transmission on small satellites . Developed by Satlab A/S , this software-defined radio (SDR) bridges the gap between massive deep-space data requirements and the strict physical limits of micro- and nano-satellites. Holding a Technology Readiness Level of TRL 9 , the Satlab SRS-4 has a rich in-orbit flight heritage with over 100 units deployed globally. Technical Architecture and RF Performance
Built in a rugged PC/104 form factor milled aluminum enclosure. This acts as an electromagnetic interference (EMI) shield and a structural thermal path to the satellite's cooling plate. srs-4 satlab
PC/104 compatible aluminum enclosure (93.0 x 87.2 x 17.5 mm) Core Architectural Features 1. Full-Duplex Software Defined Radio (SDR) Architecture
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The is a high-speed, full-duplex S-band transceiver designed for micro- and nano-satellites. Developed by Satlab A/S, this Software Defined Radio (SDR) provides a reliable communication link for telemetry, tracking, and command (TT&C) as well as high-volume payload data downlinks. High-Speed Performance and Flexibility It is a Software Defined Radio (SDR) platform
In the rapidly evolving landscape of small satellite technology—micro- and nano-satellites, including CubeSats—the demand for robust, reliable, and high-speed communication systems has reached unprecedented levels. Addressing this critical need, Satlab developed the .
The SRS-4 brings several advantages to CubeSat and Microsat platforms:
: Rated for wide temperature ranges (RX: -40°C to +85°C; TX: -40°C to +70°C) with built-in power monitoring and regulation. Applications and Heritage Holding a Technology Readiness Level of TRL 9
The SRS-4 Satlab system offers several benefits and advantages, including:
SRS-4 SatLab: Revolutionizing Space Communication for Micro and Nano-Satellites
In addition, the SRS-4 is delivered with a to simplify the development of flight software. A key feature is its ability to be fully reconfigured in orbit via a software upgrade , allowing for bug fixes or even adding new features after launch. This "on-orbit software upgradable" capability is a significant advantage, extending the useful life and adaptability of the satellite.
: Compact footprint at 93 x 87.2 x 18 mm , weighing approximately 253g .
: To safeguard against unauthorized command injection or eavesdropping, the SRS-4 implements AES-256-GCM link-layer encryption and authentication . Security keys are validated at the radio layer, mitigating risks before bad packets ever reach internal sub-systems. Mission Applications