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EWM108-GN05S Made-in China Support BDS/GPS/GLONASS/Galileo/QZSS/SBAS multi-system joint positioning single system independent positioning GNSS differential positioning

[Communication interface]:UART

[Operating voltage]:1.8-3.6V

[Positioning system]:BDS/GPS/GLONASS/Galileo/QZSS/SBAS

[Communication protocol]: NMEA0183V4.1 and previous versions

[Product size]:12.2*16.0*3.1mm

[Introduction]:EWM108-GN05S is a high-performance dual-frequency GNSS positioning module equipped with the HD8040D chip solution of Huada Beidou. This GNSS satellite positioning module supports the new generation of Beidou-3 signal system and all global civil navigation satellite systems including BDS, GPS, GLONASS, Galileo, SBAS, QZSS, etc. It provides high-precision, high-sensitivity and low-power solutions for GNSS navigation applications, and can customize SPI, USB, CAN and I2C interface outputs.

Main parameters performance Remark
Minimum value Typical values Maximum value
Operating voltage (V) 1.8 3.3 3.6 More than 3.6V may burn the module
Communication level (V)
3.3
Use 5V TTL with risk of burning
Working temperature (℃) -40 - 85 Industrial design
humidity 5% - -95%RH No dew
Main parameters describe Remark
Baud rate (bps) 1200~460800 Default 115200bps
Data bits 8bit -
Stop position 1 -
Communication interface UART -
Packaging method SMD type -
EWM108-GN05 Size 9.7*10.5*3.1mm ±0.2mm
EWM108-GN05S Size 12.2*16.0*3.1mm
Antenna interface Stamp hole -
Output format NMEA0183 V4.0/4.1 and previous versions RTCM 2.3/2.4/3.0/3.2 Cynosure GNSS receiver protocol -
Positioning update rate 1Hz Maximum positioning update frequency can reach 10Hz
Supported positioning system BDS/GPS/GLONASS/Galileo/QZSS/SBAS GPS/QZSS: L1C/A, L5C 
BDS: B1I, B2A 
GLONASS: L1 
Galileo: E1, E5a 
SBAS: L1
EWM108-GN05 product weight 0.5 ±0.1g
EWM108-GN05S product weight 0.9
Category Indicators Typical values unit
Positioning time 
(Test condition 1)
Cold start ≤28 s
Hot start ≤1 s
Sensitivity 
(Test condition 2)
Cold start -148 dBm
Hot start -155 dBm
Recapture -158 dBm
track -162 dBm
Accuracy 
(Test condition 3)
Horizontal positioning accuracy <1 m
Speed positioning accuracy <0.1 m/s
Timing accuracy 25 ns
Power consumption 
(Test condition 4)
EWM108-GN05 Capture Current 47.3 and
EWM108-GN05S Capture Current
EWM108-GN05 Tracking Current 47.8 and
EWM108-GN05S Tracking Current 47.2
EWM108-GN05 Sleep Current 14 do
EWM108-GN05S Sleep Current


Note: The above results are GPS/Beidou dual-mode working mode.
[Testing Condition 1]: The number of received satellites is greater than 6, the signal intensity of all satellites is -130dBm, the average value is taken 10 times, and the positioning error is less than 10 meters.
[Test Condition 2]: The external LNA noise factor is 0.8, the number of received satellites is greater than 6, and the received signal strength value under locked within five minutes or without losing the locking condition.
[Test Condition 3]: Open without occlusion environment, start the test for 24 hours continuously, 50%CEP.
[Test Condition 4]: The number of received satellites is greater than 6, and the signal strength of all satellites is -130dBm.





Disclaimer:Strictly prohibited for military or life-safety use. Any violation shall be solely at the user's own risk.