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LMR1-173-5-12k5-FCC

Description
VHF Narrow Band FM Low Cost multi channel radio modules
File Size434KB,11 Pages
ManufacturerRadiometrix Ltd.
Websitehttp://www.radiometrix.com/
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LMR1-173-5-12k5-FCC Overview

VHF Narrow Band FM Low Cost multi channel radio modules

Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com
LMT1/LMR1
The LMT1 transmitter and LMR1 receiver
modules offer a 12.5kHz / 25kHz channel
spacing 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.
Issue 2, 30 July 2012
VHF Narrow Band FM Low Cost multi channel radio modules
Figure 1: LMT1 transmitter and LMR1 receiver
Features
Conforms to EN 300 220-2 and EN 301 489-3
High performance double superhet. PLL synthesizer with TCXO
quasi-dc (peak sampling) data recovery circuit (for enhanced performance on unbalanced
datastreams)
Data rates up to 5 kbps for standard module
Usable range over 1km
Fully screened. Low profile
Feature-rich interface (RSSI, analogue and digital baseband)
Re-programmable via UART interface
Low power requirements
Applications
Handheld terminals
Industrial telemetry and telecommand
In-building environmental monitoring and control
High-end security and fire alarms
Heavy vehicle/machinery controls
Technical Summary
Operating frequency:
144-146MHz 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)
Evaluation platforms:
NBEK + LM Series carrier
Radiometrix Ltd
LMT1/LMR1 Data Sheet
page 1

LMR1-173-5-12k5-FCC Related Products

LMR1-173-5-12k5-FCC LMR1-144-5 LMR1-151-5-12k5-MURS LMT1-144-5 LMT1-151-5-12k5-MURS LMT1-156525-PM LMT1-173-5-12k5-FCC LMR1-5 LMT1-5 LMT1_14
Description VHF Narrow Band FM Low Cost multi channel radio modules VHF Narrow Band FM Low Cost multi channel radio modules VHF Narrow Band FM Low Cost multi channel radio modules VHF Narrow Band FM Low Cost multi channel radio modules VHF Narrow Band FM Low Cost multi channel radio modules VHF Narrow Band FM Low Cost multi channel radio modules VHF Narrow Band FM Low Cost multi channel radio modules VHF Narrow Band FM Low Cost multi channel radio modules VHF Narrow Band FM Low Cost multi channel radio modules VHF Narrow Band FM Low Cost multi channel radio modules
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