SIMCom presents a small, high performance and reliable assisted GPS module-SIM28ML. This is a standalone L1 frequency GPS module in a SMT type and it is designed with MTK high sensitivity navigation engine, which allows you to achieves the industry’s highest levels of sensitivity, accuracy, and Time-to-First-Fix (TTFF) with lowest power consumption.

Mechanical data
•Dimensions 10.1*9.7*2.5mm
•Weight 0.5g

Features
•Support EPO^TM orbit prediction
•Support SBAS ranging (WAAS, EGNOS, GAGAN, MSAS)
•Support Jamming Removing
•Low-noise amplifier has been integrated

Interfaces
•Serial interfaces
•Digital I/O            UART
   GPIO
   TIMEMARK (PPS)
•Protocols   NMEA
   PMTK

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

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          30s
     Hot starts <1s
     EPO Assist           13s(CTTFF)
•Accuracy
     Automatic Position³       2.5m CEP
     Speed⁴ 0.1m/s
•Operation temperature        -40℃~+85 ℃

Electrical data
•Power supply          2.8~4.3V
•Backup power         2.0V~4.3V
•Power consumption^2,5
     Acquisition          17mA
     Tracking  16mA
     Backup    8uA
•Antenna type           Active and passive
•Antenna power         External

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1.Demonstrated in liberary
2.All SV @ –130 dBm
3.50% 24 hr static, -130dBm
4.50%@ 30m/s
5. @3.3V with a passive antenna