u-blox M8 concurrent GNSS modules

Compact u-blox M8 concurrent GNSS modules
The MAX-M8 series of standalone concurrent GNSS modules is built on the exceptional performance of the u-blox M8 engine in the industry proven MAX form factor. With dual-frequency RF front-end, the u-blox M8 concurrent GNSS engine is able to intelligently use the highest amount of visible satellites from two GNSS (GPS, GLONASS and BeiDOU) systems for more reliable positioning.

The MAX-M8 series provides high sensitivity and minimal acquisition times while maintaining low system power. The MAX-M8C is optimized for cost sensitive applications, while MAX-M8Q/W provide best performance and easier RF integration.


  • u-blox’s smallest LCC package
  • Concurrent reception of GPS/QZSS, GLONASS, BeiDou
  • Industry leading –167 dBm navigation sensitivity
  • u-blox AssistNow GNSS Online, Offline and Autonomous
  • Product variants to meet performance and cost requirements
  • Pin-to-pin and software compatible with MAX-7 and MAX-6


  • Receiver type
    • 72-channel u-blox M8 engine
    • BeiDou B1
  • Navigation update rate:
    • Single GNSS up to 18 Hz
    • Concurrent GNSS up to 10 Hz
  • Position accuracy: 2.0 m CEP
  • Acquisition (MAX-M8Q,W/ MAX-M8C)
    • Cold starts: 26 s / 27 s
    • Aided starts: 2 s / 4 s
    • Reacquisition: 1.5 s / 1.5 s
  • Sensitivity
    • Tracking & Nav: –167 dBm / –164 dBm
    • Cold starts: –148 dBm / –147 dBm
    • Hot starts: –156 dBm / –156 dBm
  • Assistance
    • AssistNow GNSS Online
    • AssistNow GNSS Offline (up to 35 days, requires host integration)
    • AssistNow Autonomous (up to 6 days)
    • OMA SUPL & 3GPP compliant
  • Oscillator
    • TCXO(MAX-M8Q/M8W),
    • Crystal (MAX-M8C)
  • RTC crystal: built-In (MAX-M8Q/M8W)
    or cost efficient solution with higher Backup
    current (MAX-M8C)
  • Anti jamming: active CW detection and removal
  • Memory: Onboard ROM
  • Supported antennas: Active and passive
  • Support tools:
    • EVK-M8N: u-blox M8 GNSS evaluation kit
      with TCXO, supports MAX-M8Q/M8W
    • EVK-M8C: u-blox M8 GNSS evaluation kit
      with crystal, supports MAX-M8C

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