MSR3 RADIOMETRIX [Radiometrix Ltd], MSR3 Datasheet

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MSR3

Manufacturer Part Number
MSR3
Description
NBFM Multi-channel receiver for 868MHz SRD band
Manufacturer
RADIOMETRIX [Radiometrix Ltd]
Datasheet
The MSR3 is a 25kHz channel narrowband
receiver intended for European 868MHz band
Non-Specific SRD applications. The module
offers a low power, reliable data link in an
industry-standard pin out and footprint.
NBFM Multi-channel receiver for 868MHz SRD band
Features
Applications
Technical Summary
Radiometrix Ltd, MSR3 Data Sheet
MSR3
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Conforms to EN 300 220-3 and EN 301 489-3
High performance double superhet, PLL Synthesizer with TCXO
Data rates up to 5 kbps for standard module
Fully screened
Feature-rich interface (RSSI, analogue and digital baseband)
User configurable via RS232 interface
Low power requirements
Social alarm
Handheld terminals
Heavy vehicle/machine remote controls
EPOS equipment, barcode scanners
Data loggers
Industrial telemetry and telecommand
In-building environmental monitoring and control
High-end security and fire alarms
Vehicle data up/download
Operating frequency: 868 - 870MHz
Custom variants on any 3MHz block from 860 to 870MHz
Up to 32 channels
Supply range: 4.5V - 15V
Current consumption: 25mA receive
Data bit rate: 5kbps max. (standard module)
Receiver sensitivity: -118dBm (for 12 dB SINAD)
Size: 57 x 28 x 9mm
Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com
Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England
Figure 1: MSR3-868-5 receiver
15
th
September 2009
page 1

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MSR3 Summary of contents

Page 1

... Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233, www.radiometrix.com MSR3 NBFM Multi-channel receiver for 868MHz SRD band The MSR3 is a 25kHz channel narrowband receiver intended for European 868MHz band Non-Specific SRD applications. The module offers a low power, reliable data link in an industry-standard pin out and footprint ...

Page 2

... Figure 2: MSR3 block diagram Radiometrix Ltd, MSR3 Data Sheet TBA page 2 ...

Page 3

... Figure 3: MSR3 Footprint (Top) view Pin Description - MSR3 Pin Name 1 RSSI Vcc 4 AF out 5 RXD 6 P0/PGM Notes: 1. There is no pullup on the open collector RXD output. 2. P0-P3 are inverted parallel frequency select inputs. They have 10K pullups to 4. requires a logic level inverted RS232 data stream when used for programming 4 ...

Page 4

... Figure 4: RSSI voltage variation with respect to RF level at MSR3 If the microcontroller has a built-in Analogue to Digital Converter (ADC), the Received Signal Strength Indicator (RSSI) output voltage level can be read by the microcontroller to estimate its distance from transmitting MSR3 unit or identify areas of weak signal reception. ...

Page 5

... User can modify the frequency table of 32channels to any desired frequency by changing N, R values of synthesizer within 1.5MHz of factory set Channel 0 frequency subject to the Radio Regulatory Band Allocation in the country of intended use. Radiometrix Ltd, MSR3 Data Sheet 45 MHz 32920 ...

Page 6

... Spurious radiations Outputs Power on to valid audio Power on to stable data out (50:50 mark / space) Radiometrix Ltd, MSR3 Data Sheet 868 – 870MHz (any 3MHz band from 860 - 870MHz) +/- 1.5kHz 25kHz 32 channels controlled via RS232 interface (16 parallel selected) 4.5 - 15V 25mA ο ...

Page 7

... Appendix Radiometrix Ltd, MSR3 Data Sheet [ERP] POWER RF page 7 ...

Page 8

Radiometrix Ltd Hartcran House 231 Kenton Lane Harrow, Middlesex HA3 8RP ENGLAND Tel: +44 (0) 20 8909 9595 Fax: +44 (0) 20 8909 2233 sales@radiometrix.com www.radiometrix.com Copyright notice This product data sheet is the original work and copyrighted property of ...

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