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LMR2 Datasheet(PDF) 1 Page - Radiometrix Ltd |
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LMR2 Datasheet(HTML) 1 Page - Radiometrix Ltd |
1 / 11 page 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 |
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