Datasheet > LMR2

LMR2

更新时间： 2024-11-23 03:51:43

品牌	Logo	应用领域
RADIOMETRIX		无线无线模块
页数	文件大小	规格书
11页	255K
描述
UHF Narrow Band FM Low Cost multi channel radio modules

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中文翻译

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数据手册

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LMR2 数据手册

Radiometrix

Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England

Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233

Issue 2, 01 November 2007

LMT2/LMR2

UHF Narrow Band FM Low Cost multi channel radio modules

The LMT2 transmitter and LMR2

receiver modules offer a multi channel,

low power, and reliable data link. This

makes the LMT2/LMR2 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

specification or regulatory requirement.

Figure 1: LMT2 transmitter and LMR2 receiver

Features

•

Conforms to EN 300 220-3 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)

•

SAW front-end filter

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 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

Technical Summary

•

Operating frequency: 433.875-434.650MHz (EU band)

458.525 - 459.1MHz (UK band)

Other custom UHF bands

•

32 channels

Transmit power: +10dBm (10mW) / +20dBm (100mW)

Supply range: 3.1 – 15V (TX @ 10mW and RX), 4.1 – 15V (TX @ 100mW)

Current consumption: 34mA @ 10mW, 90mA @ 100mW (transmit) and 20mA (receive)

Data bit rate: 5kbps max. (standard module)

Receiver sensitivity: -118dBm (for 12 dB SINAD)

Serial configuration by inverted RS232 at 3V CMOS level

Radiometrix Ltd

LMT2/LMR2 Data Sheet

page 1

12 3 4 5 6 7...11

中文翻译

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