Specification :

Product Description

SIM908 module is a complete Quad-Band GSM/ GPRS module which combines GPS technology for satellite navigation. The compact design which integrated GPRS and GPS in a SMT package will significantly save both time and costs for customers to develop GPS enabled applications.
Featuring an industry-standard interface and GPS function, it allows variable assets to be tracked seamlessly at any location and anytime with signal coverage.
General features • Quad-Band 850/ 900/ 18001900MHz
• GPRS multi-slot class 10
• GPRS mobile station class B
• Compliant to GSM phase 2/ 2+
- Class 4 ( 2 W @ 850/ 900 MHz)
- Class 1 ( 1 W @ 1800/ 1900MHz)
• Control via AT commands ( GSM 07.07 , 07.05 and SIMCom enhanced AT Commands)
• SIM application toolkit
• Supply voltage range:
-GPRS: 3.2 ~ 4.8 V
-GPS: 3.0 ~ 4.5V
• Low power consumption
• Dimensions: 30* 30* 3.2mm
• Weight:
- SIM908: 5.2g
- SIM908-C: 11.1g
• Operation temperature:
-40 ° C to + 85 ° C

Specifications for SMS via GSM / GPRS

• Point-to-point MO and MT
• SMS cell broadcast
• Text and PDU mode
Specifications for audio

• Tricodec
- Half rate ( HR)
- Full rate ( FR)
- Enhanced Full rate ( EFR)
• Hands-free operation
• Echo cancellation

Specifications for data transfer

• GPRS class 8/ 10: max. 85.6 kbps ( downlink)
• PBCCH support
• Coding schemes CS 1, 2, 3, 4
• CSD up to 14.4 kbps
• USSD
• Non transparent mode
• PPP-stack
• Integrated TCP/ IP stack
Compatibility

• AT cellular command interface
Specification for GPS

• Receiver type
- 42-channel
- GPS L1 C/ A code,
- High-performance STE engine
• Sensitivity
- Tracking: -160 dBm
- Cold starts : -143 dBm
• Time-To-First-Fix
- Cold starts: 30s ( typ.)
- Hot starts: 1s ( typ.)
• Accuracy
-Horizontal position :