LMT1-173-5 : Low Cost VHF Narrowband FM Multi-Channel Radio Transmitter, 173MHz, 10mW

Technical Summary

• Operating frequency:
  44-146MHz Amateur Radio
  150.825-152.450MHz Australian LIPD Band
  151.820-154.600MHz US Multi-Use Radio Service (MURS) band
  156.525MHz Global Maritime Distress and Safety System
  173.200 - 173.325MHz UK Telemetry, Telecommand, Fixed Alarm band
  173.20375-173.39625MHz US FCC Part 90.238 Telemetry
• Other custom variants from 130 - 180MHz on any 2MHz band
• 4 UK allocation channels (32 maximum)
• Transmit power: +10dBm (10mW) nominal @ 3.1V (Adjustable 1 - 25mW)
  +20dBm (100mW) nominal @ 4.1V (Adjustable 25 - 100mW) 
• Supply range: 3.1 – 15V (@10mW) transmitter and receiver 
• Current consumption: 34mA @ 10mW, 90mA @ 100mW (transmit) and 20mA (receive) 
• Data bit rate: 5kbps max. (Standard module) 
• Receiver sensitivity: -118dBm (for 12 dB SINAD)

LMT1-173-5 : Low Cost VHF Narrowband FM Multi-Channel Radio Transmitter, 173MHz, 10mW

LMT1-173-5 Transmitter

• VHF Narrowband Multichannel FM Radio Transmitter
• Frequency: 173MHz
• Data Rate: 5kbps
• TX Power: 10mW
• Country: NZ
• Radiocommunications (Low Interference Potential Devices) Class Licence 2000

Overview

The LMT1 transmitter and LMR1 receiver modules offer a multi channel, low power, and reliable VHF data link. This makes the LMT1/LMR1 pair ideally suited to those low power applications where existing wideband modules have insufficient range, or where low cost multi-channel operation is needed without compromising on RF specification or regulatory requirement.

Features

• Conforms to EN 300 220-3 and EN 301 489-3
• PLL synthesizer with TCXO
• Data rates up to 5 kbps for standard module
• Usable range over 1km
• Fully screened. Low profile
• Re-programmable via RS232 interface
• Low power requirements

Applications

• Handheld terminals
• EPOS equipment, barcode scanners
• Data loggers
• Industrial telemetry and telecommand
• In-building environmental monitoring and control
• High-end security and fire alarms
• DGPS systems
• Vehicle data up/download
• Heavy vehicle/machinery controls
• MURS band