UHF Narrow Band FM Transceiver

Frequency:432 - 436MHz, 458MHz (UK) and 448MHz

The narrow band NiM2B transceiver offers a low power, reliable data link in a Radiometrix transceiver standard pin out and footprint. This makes the NiM2B ideally suited to those low power applications where existing single frequency wideband UHF modules have insufficient range.


  • Conforms to ETSI EN 300 220-2 (radio) and EN 301 489-3 (EMC)
  • Standard frequency - 434.650MHz  (programs to any frequency in the 432 - 436MHz range)
  • 458MHz (UK) and 448MHz band units are also available.
  • 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)


  • 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
  • High stability TCXO reference
  • Data bit rate: 10kbps max.
  • Transmit power: +10dBm (10mW)
  • SAW front-end band pass filter, image rejection: >60dB
  • Receiver sensitivity: -118dBm (for 12dB SINAD)
  • RSSI output with >50dBm range
  • Supply: 3.1V - 15V @ 20mA transmit, 18mA receive
  • Dimensions: 33 x 23 x 11mm (fully screened)