SIMCOM GPS module: SIM28ML

 

Mechanical data

• Dimensions: 10.1*9.7*2.5 mm

• Weight: 0.5g

 

Features

• Support EPOTM orbit prediction

• Support SBAS ranging (WAAS, EGNOS, GAGAN, MSAS)

• Support Jamming removing function

• Low-noise amplifier has been integrated

 

Interfaces

• Serial interfaces

- UART

• Digital I/O

- TIMEMARK (PPS) 

- GPIO 

• Protocols

- NMEA

- PMTK 

 

Support products

• SIM68 EVB KIT with USB V2.0 full speed interface

 

Electrical data

• Power supply: +2.8V ~4.3V

• Backup power: +2.0V ~4.3V

• Power consumption

- Acquisition: 17mA

- Tracking: 16mA

- Backup: 8μA

• Antenna type: Active and Passive

• Antenna power: External 

Performance data

• Receiver type

           22 tracking / 66 acquisition- channel GPS receiver

           GPS L1, C/A Code

• Max.update rate: 5Hz

• Sensitivity1

- Tracking: -165 dBm

- Reacquisition: -160 dBm

- Cold starts: -148 dBm 

• Time-To-First-Fix2

- Cold starts: 32s (typical) 

- Warm starts: 3s 

- Hot starts: <1s 

- EPO Assist: 13s (CTTFF) 

• Accuracy

- Automatic Position3: 2.5m CEP

- Speed4: 0.1m/s 

• Operation temperature: -40℃~+85 ℃

 

Certifications

•CE