Features
- Conforms to EN 300 220-3 (Category 1) and EN 301 489-3
- High performance double superhet, PLL Synthesizer with TCXO
- SAW front end filter
- 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

Applications
- 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

Technical Summary
- Operating frequency: 865 - 870MHz
- Up to 32 channels controlled via RS232 interface (16 parallel selected)
- Supply range: 4.5V - 15V
- Current consumption: 25mA receive
- Data bit rate: 5kbps max. (standard module)
- Receiver sensitivity: -120dBm (for 12 dB SINAD)
- Size: 57 x 26 x 9mm
- The COR3 is a 25kHz channel narrowband receiver intended for European 868MHz band Non-Specific SRD applications.

Pin Description
- Pin 1A: RF in 50Ω RF input from antenna
- Pin 2A: RF GND
- Pin 1: RSSI DC level between 0.5v and 2.5v
- Pin 2: 0V Ground
- Pin 3: Vcc Supply input 4.5 - 15v
- Pin 4: AF out 700mV p-p audio
- Pin 5: RXD Open collector output of data slicer
- Pins 6-9: Parallel Channel select

Serial Configuration Commands
- Serial data is sent to the unit on one of the parallel channel select pins (P0).
- Commands include GOCHAN, LOAD, SETPAR, SETSER, RVALUE, SINGLE.
- Requires 2400 baud RS232, 8 bit data, no parity.

Condensed Specifications
- Frequency: 865 – 870MHz
- Frequency stability: +/- 1.5kHz
- Channel spacing: 25kHz
- Number of channels: 32
- Supply voltage: 4.5 - 15V
- Current: 25mA
- Operating temperature: -20 to +55 οC
- Size: 57 x 26 x 9 mm
- Receive sensitivity: -120dBm for 12 dB SINAD

Received Signal Strength Indicator (RSSI)
- Measures the strength of an incoming signal over a range of 60dB or more.
- Output on pin 1 has a DC bias of up to 0.5V with no signal, rising to 2.5V at maximum indication.

Appendix
- Includes information on RF power, channel spacing, and duty cycle.
- Compliance with ETSI standards and R&TTE Directive.

Contact Information
- Radiometrix Ltd, Hartcran House, 231 Kenton Lane, Harrow, Middlesex, HA3 8RP, England
- Tel: +44 (0) 20 8909 9595, Fax: +44 (0) 20 8909 2233
- Email: [email protected]
- Website: www.radiometrix.com

Legal and Compliance
- Copyright notice and limitation of liability.
- Compliance with R&TTE Directive and ETSI standards.