NBFM Multichannel 500mW VHF Transceiver
 
UHX1
UHX1 is small dual frequency multi-channel VHF transceiver with up to 500mW RF power output.
The dual frequency capability allows UHX1's transmitter section to be operated on one frequency while receiver frequency on another.
Figure 1: UHX1-xxx-5

Features

  • Conforms to ETSI EN 300 220-3 and EN 301 489-3
  • High performance double superhet, 128 channel PLL synthesizer
  • 500mW RF power output: adjustable via serial command
  • Data rates up to 5 kbps for standard module
  • Usable range over 1km
  • Fully screened
  • Feature-rich interface (RSSI, analogue and digital baseband)
  • Digital RSSI output
  • Incorporates a 1200baud dumb modem
  • Re-programmable via RS232 interface
  • Low power requirements
  • TX enable LED indicator

Applications

  • 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: Any 2MHz segmnet in 140- 175MHz
  • 128 channels controlled via RS232 interface
  • 16 channels selected by parallel interface
  • Transmit power: : 500mW (+27dBm) nominal. Adjustable 1 - 500mW
  • Supply range: 5V regulated transmit, 3.1 - 15V receive
  • Current consumption: 330mA (at 500mW output) transmit, 25mA receive
  • Data bit rate: 5kbps max. (standard module)
  • Receiver sensitivity: -118dBm (for 12 dB SINAD)
  • Size: 67 x 30 x 12mm
Evaluation Platform: Narrow Band Evaluation Kit