VHF NB FM High Power Transmitter


The special HX1 transmitter modules offer a 300mW RF output VHF data link in Radiometrix SIL standard pin-out and footprint. This makes the HX1 ideally suited to those low power applications where existing narrow band and wideband transmitters provide insufficient range.


Frequency 144.390MHz, 144.800MHz, 145.175, 151.300MHz & 169MHz band


  • Standard frequency:169MHz band
  • Other frequencies from 120MHz to 180MHz
  • Data rates up to 3kbps for standard module
  • Usable range over 10km
  • Fully screened
  • Low power requirements

The HX1 is a narrow band radio transmitter module for use in long range data transfer applications at ranges up to 10kilometres. HX1 transmitter circuit
is the BiM1T transmitter circuit in the TX1 pin-out with slightly enlarged dimension to accommodate extra Power Amplifier circuit to produce 300mW
RF output and available for operation on 169MHz European licence exempt frequency band.


  • Tracing and asset tracking systems
  • Meter reading systems
  • Industrial telemetry and telecommand
  • Data loggers
  • In-building environmental monitoring and control
  • Social alarms
  • High-end security and fire alarms
  • DGPS systems
  • Vehicle data up/download

Technical Summary

  • Transmit power: 300mW (24.7dBm) nominal
  • Operating frequency: 169.4125MHz, 169.5625MHz
  • Supply range: 5V regulated
  • Current consumption: 140mA nominal transmit
  • Data bit rate: 3kbps max.
  • Size: 43 x 15 x 5mm

Purchasers needs to submit a valid amateur ham radio license when placing the purchase order for the HX1-144.390 modules.

A member of our customer service team will contact you for your valid FCC License/call sign before this item can be shipped.

Downloads & Datasheets

  1. Full Specs PDF


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