The is a high-performance, full-duplex S-band transceiver specifically engineered for the demanding requirements of micro- and nano-satellites (CubeSats). Developed by Satlab A/S , this software-defined radio (SDR) serves as a critical communication link, enabling high-speed data transfer between a spacecraft and ground station networks. Core Functionality & Design
: Typical power consumption is roughly 1.5W (RX) and 10.8W (full TX at 33 dBm). Software & Security
information on Satlab's other radio products (e.g., SDRs or ADS-B receivers)
The SRS-4 SatLab is a state-of-the-art satellite receiver system designed to provide accurate and reliable positioning data. It is a product of the innovative minds at SatLab, a company renowned for its expertise in satellite-based positioning solutions. The SRS-4 SatLab is built on the latest advancements in satellite technology, incorporating advanced algorithms and sophisticated hardware to deliver unmatched performance. srs-4 satlab
This company specializes in professional-grade geospatial measurement equipment for land surveying, construction, and marine applications. Based in Sweden, they provide a full stack of hardware and software solutions for high-precision positioning and 3D mapping, competing with industry giants like Trimble and Leica Geosystems.
: Efficient operation with a typical RX-only consumption of 1.5 W and a combined RX+TX consumption of 10.8 W at maximum output. Advanced Features for Satellite Missions
With a and a track record of over 100 units successfully delivered globally since its 2021 launch, the SRS-4 stands as an industry-standard communication hub for modern CubeSat architectures. Key Technical Specifications Software & Security information on Satlab's other radio
I think SRS-4 was never a survey lab. I think we were placed here to wake something up. And it’s answering.
Includes run-time configurable convolutional and Reed-Solomon forward error correction (FEC) to ensure data integrity. Flight Heritage and Use Cases
The Satlab SRS-4 Transceiver is built explicitly to address the multi-megabit requirements of contemporary commercial constellations. and 8PSK for downlink transmissions
The transceiver accommodates multiple bandwidth profiles. It supports BPSK, QPSK, and 8PSK for downlink transmissions, and BPSK/QPSK for uplinks, maximizing spectral efficiency.
The core of the Satlab SRS-4 centers on its agile SDR architecture. This hardware configuration allows satellite operators to configure transmission parameters dynamically while in orbit, reducing mission risk and adjusting to changing ground networks.
Operating seamlessly on the , the SRS-4 provides unparalleled flexibility for communicating with both independent and commercial ground station networks.
Additionally, its capability allows it to transmit and receive data simultaneously. This means a ground station can send new commands to the satellite (telecommands) at the same time as the satellite is downlinking its payload data (telemetry), enabling more efficient and responsive mission operations.
standard modulation techniques used in satellite communication Satlab SRS-4 Datasheet Revision 1.2