Radiometrix Ltd
LMT2/LMR2 Data Sheet
page 1
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
UHF Narrow Band FM Low Cost multi channel radio modules
UHF Narrow Band FM Low Cost multi channel radio modules
UHF Narrow Band FM Low Cost multi channel radio modules
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
on
RF
specification or regulatory requirement.
Radiometrix
Hartcran House, 231 Kenton Lane, Harrow, HA3 8RP, England
Issue 2, 01 November 2007
LMT2/LMR2
NE
W
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233
Figure 1: LMT2 transmitter and LMR2 receiver
English ▼
English
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
Indian
Mexican
British
New Zealand
