Datasheet > LMR1-173-5-12k5-FCC

LMR1-173-5-12k5-FCC

更新时间： 2024-11-02 01:09:23

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RADIOMETRIX		/
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描述
VHF Narrow Band FM Low Cost multi channel radio modules

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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

Issue 2, 30 July 2012

LMT1/LMR1

VHF Narrow Band FM Low Cost multi channel radio modules

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

needed

without

compromising on RF specification or

regulatory requirement.

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

12 3 4 5 6 7...10

中文翻译

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