User manual

(2007) Sky Microwave Co. Ltd. All Rights Reserved
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3. Features
 Supporting both Chinese/English SMS data communication
 Supporting 900/1800/1900 MHz GSM Tri band, better signal quality
 Status lights indication
 Supporting AT Command Set
 Standard RS-232 serial port, easy to use
 Industrial standard design and quality guarantee
4. Specifications
 Operation temperature ：-25 - +60℃
 Storage temperature：-35 - +80℃

Humidity
：
0 - 95
％
non-condense
 Receive Sensitivity
：
-102dBm
 Maximum Transmit Power：1W
 Dynamic range：62dB
 Frequency tolerance ：≤±0.1ppm
 Power supply：5V、7.5V、12V optional (customized by requirement)
 Current：standby 50mA，work 300mA
 Weight： 250g