MAX-M8Q GNSS HAT For Raspberry Pi, Multi-Constellation Receiver Support MAX-M8Q GNSS HAT GNSS Module Based On MAX-M8Q For Raspberry Pi Accurate & Fast Positioning With Minor Drifting, Low Power Consumption, Outstanding Ability For Anti-Spoofing & Anti-Jamming This is a Raspberry Pi GNSS HAT based on MAX-M8Q with multi-constellation receiver support, which means up to 3 types of GNSS satellite systems can be used together, including GPS, Beidou, Galileo, and GLONASS. It also support augment systems like SBAS, QZSS, IMES, and D-GPS. It features accurate & fast positioning with minor drifting, low power consumption, outstanding ability for anti-spoofing & anti-jamming, and so on. By simply attaching it onto the Pi, it is fairly easy to enable GNSS capability for your Raspberry Pi. Features At A Glance Multi-constellation receiver support, concurrent reception of up to 3 types of GNSS satellite systems from GPS, Beidou, Galileo, and GLONASS, and still retains low power consumption Augment systems support, including SBAS, QZSS, IMES, D-GPS, improving the positioning performance of service location A-GNSS (Assisted GNSS) support, reducing the first positioning time when powered up, improving the acquisition sensitivity Features -167dBm navigating sensitivity and outstanding ability for anti-spoofing & anti-jamming, supports geo-fencing Supports U-Center, an easy way to config the module Standard Raspberry Pi 40PIN GPIO extension header, supports Raspberry Pi series boards, Jetson Nano Onboard USB TO UART converter CP2102 for serial debugging Breakouts the module's UART and I2C interface, for connecting with host boards like Arduino/STM32 Baudrate range: 4800~921600bps (9600bps by default) Supports DDC (I2C compliant) interface: up to 400KHz (max) Onboard battery holder, supports ML1220 rechargeable cell, for preserving ephemeris information and hot starts 4x LEDs for indicating the module operating status Comes with development resources and manual (examples for Raspberry Pi/Jetson Nano/Arduino/STM32) Specifications GNSS SPECIFICATIONS MAX-M8Q GPS & GLONASS GPS GLONASS BeiDou Galileo Frequency band 72x u-blox M8 engine channelsGPS L1C/A, SBAS L1C/A, QZSS L1C/A, QZSS L1 SAIF,GLONASS L1OF, BeiDou B1I, Galileo E1B/C Horizontal positioning accuracy 2.5m CEP 2.5m CEP 4.0m CEP 3.0m CEP - Max navigation update rate 10Hz 18Hz 18Hz 18Hz 18Hz Time-To-First-Fix Cold starts 26s 29s 30s 34s 45s Hot starts 1s 1s 1s 1s 1s Aided starts 2s 2s 2s 3s 7s Sensitivity Tracking and navigating -167 dBm -166 dBm -166 dBm -160 dBm -159 dBm Re-acquisition -160 dBm -160 dBm -156 dBm -157 dBm -153 dBm Cold starts -148 dBm -148 dBm -145 dBm -143 dBm -138 dBm Hot starts -157 dBm -157 dBm -156 dBm -155 dBm -151 dBm PPS accuracy RMS 30ns 30ns 30ns 30ns 30ns 99% 60ns 60ns 60ns 60ns 60ns PPS frequency 0.25Hz…10MHz (configurable) Velocity accuracy 0.05m/s Heading accuracy 0.3 degree Operational limits Acceleration (max): 4g Altitude (max): 50000m Velocity (max): 500m/s OTHER SPECIFICATIONS Communication interface UART (4800~921600bps, 9600bps by default), I2C (max 400KHz) Update rate 1Hz (default), 18Hz (max) Protocol NMEA 0183 Version 4.0 (V2.1, V2.3 or V4.1 selectable), UBX, RTCM 2.3 Power supply 5V Overall current
