GRX-4000/Dualband Radio Relay System

The GRX-4000 is the latest generation of the Dual Band (Band III+ and Band IV), Dual Mode (point to point or point to 2 points) high-capacity line-of-sight (HCLoS) broadband radio relay systems by TELFUNKEN RACOMS. The software-defined radio relay systems supports the latest IP and legacy communication protocols. It is ECCM-capable, enabling interference-free communication. The GRX-4000 is capable of multi-mode, high speed data transmission (100Mbit/s per link).High sensitivity, combined with its robust modulation schemes, provides very high link availability. The GRX-4000 is field-proven and in operation in armed forces around the world.

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  • Simultaneous operation in Nato-Frequency-Band III+ and IV
  • High capacity built-in IP and TDM multiplexer
  • High system gain 
  • Interference rejection
  • Powerful adaptive digital equalizer
  • Forward error correction (FEC) and interleaving
  • Low probability of interception
  • Automatic power control
  • Adaptive frequency control
  • Optimized MMI
  • High gain antennae
  • Environmental acc. MIL-STD-810E
  • EMC acc. MIL-STD-461
  • Built-in-Test equipment


  • Dualband Richtfunkgerät (III+ und IV
  • High data rate (100Mbit/s) per link
  • P-2-P or P-2-MP