VHF Transceiver

VHF Narrow Band FM transceiverThe BiM1 VHF transceiver modules offer a 100mW RF output wireless data link in Radiometrix transceiver standard pin-out and footprint. This makes the BiM1 ideally suited to those low power applications where existing wideband transceivers provide insufficient range. The BiM1 is a half duplex radio transceiver module for use in long range bi-directional data transfer applications at ranges up to 10kilometres. The module operates on the UK licence exempt frequency of 173.225/173.250MHz with 10mW RF output and Australian frequency of 151.300MHz with 100mW RF output. The small footprint of 23 x 33mm and low profile of 10mm together with low power requirements of <80mA (for 100mW) at 3.8V enables convenient PCB installation. BiM1 is also available as separate BiM1T transmitter and BiM1R receiver which can be used as dual-in-line equivalents of TX1 transmitter and RX1 receiver respectively.


  • Conforms to EN 300 220-3 and EN 301 489-3 (10mW version only)
  • Standard frequency 151.300MHz
  • Other frequencies from 120MHz to 180MHz
  • Available separately as BiM1T transmitter and BiM1R receiver TX1H is a BiM1T in TX1 pin-out
  • Data rates up to 10kbps for standard module
  • Usable range over 10km
  • Fully screened
  • Feature-rich interface (RSSI, analogue and digital baseband
  • Low power requirements


  • 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

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