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 A, 11 November 2009
PRELIMINARY
WRX2
433.92MHz Low Cost FM Receiver
The WRX2 is a low cost wide band FM
receiver in a Radiometrix SIL standard pin
out and footprint. It offers an economical and
reliable low power data link without
compromising the receiver performance.
WRX2 receiver and the matching TX2A
transmitter enable the simple implementation
of a wireless data link at up to 12 kbps at
distances up to 75 metres in-building and
300 metres open ground.
Figure 1: WRX2-433-12
Features
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Conforms to ETSI EN 300 220-3 (radio) and EN 301 489-3 (EMC)
Standard frequencies: 433.92MHz
Custom frequencies available in 433MHz (EU) band
Data rates up to 12kbps
Usable range over 300m
Technical Summary
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Double conversion FM superhet
SAW band pass filter, image rejection: 45dB
Supply range: +3V or 2.9V - 15V (regulator version) @ 22mA
Data bit rate: 12kbps max.
Receiver sensitivity: -115dBm (for 12dB SINAD)
Local Oscillator (LO) re-radiation: <-65dBm
Adjacent Channel: -65dBm
Blocking: -75dB
Size: 47 x 17 x 6 mm (47 x 17 x 8.5mm with can)
Applications
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Handheld terminals
EPOS and inventory tracking
Sensor nodes
Data loggers
Industrial telemetry and telecommand
In-building environmental monitoring and control
High-end security and fire alarms
Evaluation platforms: Universal Evaluation Kit, NBEK + SIL carrier
Radiometrix Ltd.,
WRX2 data sheet
Page 1
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