SIMCom presents a small, high performance and reliable 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 EPOTM orbit prediction

•Support EASYTM self-generated orbit prediction

•Support Jamming Removing

•Low-noise amplifier has been integrated

Electrical data

•Power supply 2.8~4.3V

•Backup power 2.0~4.3V

•Power consumption

Acquisition 17mA

Tracking 16mA

Backup 8uA

•Antenna type Active and passive

•Antenna power External

Interfaces

•Serial interfaces

•Digital I/O 

UART

GPIO

TIMEMARK (PPS)

•Protocols 

NMEA

PMTK

Performance data

•Receiver type:22 tracking/66 acquisitionchannel GPS receiver

•Max update rate 5Hz

•Sensitivity1

Tracking:-165 dBm

Reacquisition:-160 dBm

Cold starts:-148 dBm

•Time-To-First-Fix2

Cold starts 32 s (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

• RoHS\REACH\CE(RED)

Support product

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

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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