UHF Radio Packet Modem

The UHF Radio Packet Modem (RPM2A) 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. The RPM2A uses addressable data packets with error checking, packet acknowledgements and retransmissions to achieve a reliable transparent wireless data link. Built for ease of use and rapid installation, the serial interface ensures direct connection to microprocessors or to RS232 port via RS232 driver while remote configuration enables post installation setup of the modem.

Key Facts


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RF Power

RF Power

Data Rate

Data Rate

Operational Range


Operational Range


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Two way

Data sheet


  • Addressable point-to-point
  • Point-to-Multipoint and broadcast modes
  • Inverted RS232 interface at 5V or 3VCMOS level
  • DTE speed 600-115200bps
  • Overall throughput: 17kbps with ACK
    28kbps without ACK
  • Single 5V or 3V supply
  • 15mA during data streaming at maximum rate
  • Flow control – Hardware (CTS), None0
  • Available on 433.92MHz or 434.42MHz
  • Usable range up to 300m
  • 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
  • Dimensions: 39mm X 23mm X 10mm


  • 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 systems
  • High-end security and alarm signalling
  • Automated Monitoring and Control Systems
  • Fleet management, vehicle data acquisition

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