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Band selective digitally controlled RF repeater GR9P21 is an indoor bi-directional amplifier that offers an increase of signal strength in medium-sized rooms for BAND8 (EGSM) and BAND1 (UMTS) standards.

* other bandwidth is optioanlly available


  • Dual band E-GSM and UMTS
  • Band selective operation
  • Adjustable center frequency and gain
  • Digital control
  • Compact design for easy installation
  • Integrated antenna (or connector for indoor delivery network)
  • Uplink & Downlink gain is separately adjustable
  • Basic automatic gain control
  • USB connectivity
  • User friendly GUI
  • Low power consumption
  • Status indicating LEDs


  • Shopping centers
  • Hotels, offices
  • Factories
  • Underground parking lots
Product Type Bandwidth [MHz] Gain [dB] Output level [EGSM/UMTS] [dBm] Supply [V/A]
GR9P21-01 EGSM900+UMTS2100 E-GSM 11.4, UMTS 14.8 70 +18/+18 9..17/1.6..0.8