UHF Narrow Band FM Receiver

Frequency:425 - 480MHz

The NTX2B transmitter and NRX2B receiver offer a low power, reliable data link in a Radiometrix SIL standard pin out and foot print. This makes the NTX2/NRX2B pair ideally suited to those low power applications where existing single frequency wideband UHF modules have insufficient range.


  • Conforms to ETSI EN 300 220-3 (radio) and EN 301 489-3 (EMC)
  • Standard frequencies - 434.075MHz, 434.650MHz and 458.700MHz
  • Factory programmable custom frequency (425 - 480MHz). No crystal lead-times
  • Custom frequencies available in 433MHz (EU) and 458MHz (UK) band
  • Data rates up to 10kbps
  • Usable range over 500m
  • 12.5kHz / 20kHz / 25kHz Channel spacing (factory set)
  • Feature-rich interface (true analogue and/or digital baseband) and RSSI
  • Longer range compared to Wide Band FM modules


  • EPOS equipment, barcode scanners
  • Data loggers
  • Industrial telemetry and telecommand
  • In-building environmental monitoring and control
  • High-end security and fire alarms
  • DGPS systems
  • Vehicle data up/download

Technical Summary

  • Fully integrated sigma-delta PLL synthesizer based design
  • SAW band pass filter, image rejection: 50dB
  • Supply range: 2.9V - 15V @ 14mA (internal 2.8V voltage regulator)
  • Data bit rate: 10kbps max.
  • Receiver sensitivity: -118dBm (for 12dB SINAD) / -112dBm (for 1ppm BER)