gnss dead reckoning positioning untethered dead reckoning gps eva-m8e glonass c93-m8e galileo beidou l1 smt navigation surface mount telematics u-blox sip ublox m8

EVA-M8E - small untethered dead reckoning M8 GNSS SiP

The EVA-M8E GNSS SiP introduces u-blox’s Untethered Dead Reckoning (UDR) technology in an ultra-compact EVA form factor. Measuring only 7 x 7 mm, the SiP offers the designer flexibility in the selection and placement of peripheral components. It only requires flash memory, an inertial sensor, and an optional real-time clock (RTC) crystal and its sensor can be installed in any stable position within the vehicle without configuration.

  • Leading performance under poor signal conditions
  • Continuous navigation during signal interruptions
  • Independent of any electrical connection to the car
  • Real‑time positioning at rates up to 20 Hz
  • Low cost of ownership, ideal for high volume projects

The C93-M8E application board is a good way to assess the performance and suitability of the u-blox EVA-M8E Untethered Dead Reckoning SiP for your application.

In addition, the EVK-M8U evaluation kit also supports the EVA-M8E.

The u-blox GNSS product overview provides a useful guide to the technologies used, product selection, product grades and advantages of u-blox GNSS modules.

UDR provides the benefits of Dead Reckoning (DR) without requiring speed information from the vehicle. This significantly reduces the cost of installation for after-market Dead Reckoning applications and brings DR performance to applications where previously only GNSS was possible. The strength of UDR compared with GNSS alone is particularly apparent under poor signal conditions in urban environments, where it brings continuous positioning even to devices with antennas installed within the vehicle. Useful positioning performance is also available during complete signal loss, for example in parking garages and short tunnels. UDR positioning starts as soon as power is applied to the SiP, even before the first GNSS fix is available. Inertial sensing enables vehicle yaw, pitch, and roll to be calculated and reported directly.

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EVA-M8E at a glance

Product information
Product variants EVA-M8E 
No. of concurrent GNSS
Temperature range (°C) -40 ~ +85 
Supply (V) (Min. - Max.) 2.7 ~ 3.6 
Dimensions (mm) 7.0 x 7.0 x 1.1 

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