VHF Narrow Band FM Multi channel Transceiver

Frequency:135MHz to 175MHz

The TR1M narrow band multi channel transceiver module is intended as a general purpose VHF data communication unit. It is available on any frequency between 135 and 175MHz (in 3MHz bands) and delivers up to 100mW RF output. This transceiver offers a low power, reliable data link in an industry standard footprint. For added flexibility it shares a common pinout with the UHF TR2M module


  • Conforms to EN 300 220-3 and EN 301 489-3
  • Any 3MHz band module from 135MHz to 175MHz 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
  • Low power requirements


  • 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