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Product description

SIMCom presents a high performance and reliable GNSS module-SIM68M. This is GNSS module integrated with GPS &GLONASS system in a SMT type with MTK’s high sensitivity navigation engine, which allows customer to achieve industry’s high level sensitivity, accuracy, and Time-to-First-Fix (TTFF) with lower power consumption.

Technical specifications

Mechanical data

•Dimensions: 10.1*9.7*2.5mm
•Weight: 0.5g


•Support GPS/GLONASS/Galileo/QZSS
•Support EASYTM self-generated orbit prediction
•Support EPOTM orbit prediction
•Support SBAS ranging (WAAS, EGNOS, GAGAN, MSAS)
•Support Jamming Removing
•Low-noise amplifier has been integrated


•Serial interfaces UART
•Digital I/O EINT0 input
-Pulse-per-second (PPS)

Performance data

•Receiver type 33tracking/99 acquisition- channel GNSS receiver
•Mas. update rate 10HZ
       Tracking:-165 dBm
       Reacquisition: -160 dBm
       Cold starts: -148 dBm
       Cold starts: 28 s
       Warm start: 26 s
       Hot starts: <1 s     
       EPO Assist: 13 s (CTTFF) 
       Automatic Position3:<2.5m CEP
       Speed4: 0.1m/s
•Operation temperature5:  
-40℃~+85 ℃

Electrical data

•Power supply 2.8V~4.3V
•Backup power 2.3V~4.6V
•Power consumption2,6
     Acquisition 25mA
     Tracking 20mA
     AlwaysLocateTM 340uA
     Backup 14uA
•Antenna type Active and passive
•Antenna power External or internal VCC_RF

Support product

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

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