GSM/GPRS:
- Band
- GSM 850/EGSM 900/DCS 1800/PCS 1900 MHz
- Quad-band auto search
- Compliant to GSM phase 2/2+
- Emitting power
- Class 4 (2W @ GSM 850/EGSM 900 MHz)
- Class 1 (1W @ DCS 1800/PCS 1900 MHz)
- GPRS connectivity
- GPRS multi-slot class 12 (default)
- GPRS multi-slot class 1~12 (configurable)
- GPRS data feature
- Downlink speed: max 85.6kbps
- Uplink speed: max 85.6kbps
- Coding schemes: CS-1\CS-2\CS-3\CS-4
- Supports PAP (Password Authentication Protocol) for PPP connection
- Embedded TCP/IP protocol
- Supports PBCCH
- Supports CSD transmission speed: 2.4/4.8/9.6/14.4 kbps
- Supports USSD
- SMS
- Supports: MT/MO/CB/Text/PDU mode
- SMS storage: SIM card
- Audio
- Voice encode/decode mode: Half Rate\Full Rate\Enhanced Full Rate\Adaptive muti rate
- Supports echo cancellation
- Supports noise reduction
GPS:
- Receiver type
- 22 tracking channels
- 66 acquisition channels
- GPS L1 C/A code
- Sensitivity
- Tracking: -165 dBm
- Cold starts : -148 dBm
- Time-To-First-Fix
- Cold starts : 30s (typ.)
- Hot starts : < 1s
- Warm starts: 28s
- Accuracy
- Horizontal position : <2.5m CEP
_____
- SIM808 module
- MIC29302 power chip
- CP2102: USB TO UART converter
- SMF05C: TVS diode
- 1N5408: onboard rectifier
- SIM808 functional pins
- Arduino expansion connector
- USB TO UART interface
- DC power jack
- GPS antenna connector
- Bluetooth antenna connector
- Firmware upgrade interface
- GSM antenna connector
- SIM card slot
- 3.5mm earphone/mic jack
- GPS status indicator
- CP2102 UART Tx/Rx indicator
- NET indicator:
- flashes fast when the module starts up
- flashes slowly after GSM register succeed
- Power indicator
- Power switch
- SIM808 control button: press the button and hold for 1s, to startup/shutdown the SIM808
- Reset button
- UART selection switch, select controlling the SIM808 via:
- CP2102
- UART pins of Arduino interface
- SIM808 UART configuration:
- SIM_TX: SIM808 UART TX
- SIM_RX: SIM808 UART RX
- IOREF power selection: configure the UART voltage level
Packege Content: