VHF Narrow Band FM Multi channel Transceiver

SMX1 is small multi-channel VHF transceiver operating on 173.200MHz-173.325MHz band. SMX1 offers a fast-route to custom frequency on any VHF band from 130MHz to 180MHz with 25kHz channel spacing.

VHF Narrow Band FM Multi channel Transceiver

Part Number: SMX1-173-5

Price: $193.95 each

Full Specs PDF

VHF Narrow Band FM Multi channel radioTransceiver


  • Conforms to ETSI EN 300 220-3 and EN 301 489-3
  • High performance double superhet, 128 channel PLL synthesizer
  • Data rates up to 5 kbps for standard module
  • Usable range over 1km
  • Fully screened
  • Feature-rich interface (RSSI, analogue and digital baseband)
  • Incorporates a 1200baud dumb modem
  • Re-programmable 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

Technical Summary

  • Operating frequency: 173.200 - 173.325MHz
  • Custom variants from 130 - 180MHz on any 1MHz band
  • 128 channels controlled via RS232 interface
  • Transmit power: +10dBm (10mW) nominal. Adjustable 1 - 50mW
  • Supply range: 4.2V - 16V
  • Current consumption: 40mA (10mW) - 65mA (50mW) transmit, 20mA receive
  • Data bit rate: 5kbps max. (standard module)
  • Receiver sensitivity: -120dBm (for 12 dB SINAD)
  • Size: 53 x 32 x 12mm

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