Communication Module UHF/VHF + 2x UHF half-duplex

RF communication module responsible for TT&C uplink and downlink.



RF communication module is responsible for TT&C uplink and downlink. The communication module enables the change of data with the ground station. CM consists of two Sub-GHz redundant transceiver modules and a microcontroller for external S-Band transmitter.


  • Processor: up to 16MHz, 256kB FRAM, Ultra-Low-Power Modes
  • Low Power Consumption: 2.8W at 30dBm RF, output power on UHF
  • 2x UHF half-duplex
  • Modulations: (G)FSK, 2(G)MSK, OOK
  • Automatic Frequency Control: +/- 25kHz
  • High receiver’s sensitivity: minimum -105dBm at 9.6kbps
  • UHF/VHF operational frequency 142 – 146 MHz, 432.5 – 438 MHz
  • Data interface: RS485 with configurable frequency, data rate up to 64kbps, modulation, RF connector (type, position, orientation – 60bit synchronization
  • Forward Error correction: Reed-Solomon ¼ with downlink protocols APRS AX.25 1.2kbps or custom binary protocol 9.6-64kbps
  • Uplink protocol: custom binary protocol 9.6kbps
  • 128/256 hardware AES encryption/decryption with time coding and digital signature coding schemes
  • Safety watchdog
  • Single PCB radio
  • Single board Telemetry, Telecommand, and Beacon capabilities




  • Supply voltage: 12 V, 3.3 V
  • UHF max RF power output: 29 dBm
  • Max current consumption at RX*: 20 mA
  • Normal current cons. at TX*: 0.117 A
  • Connectors: SMA, FX10A-168P




  • Size: 96 x 96 x 1.6 mm3


  • Thermal-vacuum
  • Random vibration
  • EMC

Datasheet download

Communication Module Datasheet