The SatNOGS COMMS is a turnkey solution enabling robust and reliable communication for LEO Cubesats, co-founded by ESA and Libre Space Foundation. Demodulation and decoding of telemetry and payload data produced by SatNOGS COMMS are fully compatible with SatNOGS ground stations. SatNOGS COMMS also integrates tightly to SatNOGS Network, supporting a mission control system for TC&C and real-time dashboards.

The COMMS transceiver operates on UHF and S-Band with two dedicated half-duplex RF frontends. The supported data rates are up to 50 kbps for the UHF and up to 1 Mbps for the S-Band, depending on the modulation and coding rate used. The UHF frontend can tune from 395 up to 450 MHz, while the S-Band at 2025 – 2110 MHz for the uplink and 2200 – 2290 MHz for the downlink. Both frontends can produce up to 32 dBm of TX power and their emissions are compliant with the SFCG 21–2R4. The RX interfaces implement a custom hardware AGC mechanism and are also equipped with switchable filters (narrowband/wideband) to improve selectivity if needed. Additionally, the transceiver provides an I/Q interface for each RF frontend to extend the radio functionality and enable Cognitive Radio capabilities.

The entire SatNOGS-COMMS solution is open hardware and open software. The development progress, as well as various helper analysis and simulation tools, breadboard models and documentation can be found at the project repositories at https://gitlab.com/librespacefoundation/satnogs-comms