VHF Radio Packet Modem


The VHF Radio Packet Modem (RPM1) is a low cost intelligent radio packet modem that enables a two way radio network/link to be simply implemented between a number of digital devices.

Download Product Spec



  • Addressable point-to-point mode
  • Point-to-Multipoint and broadcast modes
  • Inverted RS232 interface at 5V or 3.3V CMOS level
  • DTE speed 600-115200bps
  • Overall throughput: 3.7kbps with ACK and

    5.3kbps wothout ACK

  • Single 5V or 3.3V (10mW max.) supply
  • Flow control – Hardware (CTS), none
  • Usable range over 1km
  • Built-in command line configuration
  • Built-in RF link diagnostics
  • Remote over-air unit configuration
  • Low operating current, Auto standby mode
  • Conforms to European ETSI EN 300 220-3 and EN 301 489-3 (at 10mW)
  • Conforms to Australian/New Zealand AS/NZS 4268:2003 (at 100mW)
  • Dimensions – 39 X 23 X 15 mm
  • Available as RPM1T transmitter and RPM1R receiver for one way communication


  • GPS (NMEA) position reporting
  • Telemetry and telecontrol
  • EPOS equipment, barcode scanners, belt clip printers, stock control, job allocation
  • Remote data acquisition system, data loggers
  • In-building environmental monitoring and control system
  • High-end security and alarm signalling
  • Automated Monitoring and Control Systems
  • Fleet management, vehicle data acquisition

Downloads & Datasheets

  1. Full Specs PDF