VX2M NBFM Vibration Resistant Category 1 Multi-channel Transceiver

VX2M is a 400MHz band transceiver conforming to the Radiometrix TR2M pinout. It uses a sophisticated combination of techniques to produce a very robust device with excellent resistance to vibration. It meets the ETSI Category 1 high performance receiver specification to be used where the operation of a SRD may have inherent safety of human life implications. It retains all the pin-functions of the parent TR2M (including noise operated squelch/carrier detect and separate digital/analogue inputs and outputs). It also supports the same internal i1200 modem as the TR2M.


  • Conforms to EN 300 220-3 and EN 301 489-3
  • ETSI EN 300 220-1 Category 1 High performance level receiver
  • Any 3MHz band module from 400MHz to 475MHz available as factory tuned custom variant
  • High performance double superhet, 128 channel PLL Synthesizer with TCXO
  • Data rates up to 5 kbps for standard module
  • Usable range over 1km (with 100mW variant)
  • Fully screened
  • Feature-rich interface (RSSI, automatic noise squelch, analogue, and digital baseband)
  • Incorporates a 1200baud dumb modem
  • User configurable via RS232 interface


  • Handheld terminals
  • Heavy vehicle/machine remote controls
  • EPOS equipment, barcode scanners
  • Data loggers
  • Industrial telemetry and telecommand
  • In-building environmental monitoring and control
  • High-end security and fire alarms
  • Vehicle data up/download

Technical Summary

  • Operating frequency: 458.5-459.1MHz or 433.05-434.79MHz
  • Custom variants from 400MHz to 475MHz on any 3MHz band
  • 23 channels in 458MHz band, 69 channels in 433MHz band (128 channels max.
  • ┬áTransmit power: +20dBm (100mW) nominal
  • Supply range: 4.5V – 16V
  • Current consumption: 130mA transmit, 50mA receive
  • Data bit rate: 5kbps max. (standard module)
  • Receiver sensitivity: -118dBm (for 12 dB SINAD)
  • Size: 59 x 38 x 10mm

Evaluation platforms: NBEK + xx2M Series carrier