This ZED-F9P-based GNSS HAT provides centimeter-level accuracy. It offers features such as multi-band RTK with quick convergence times, a high update rate, support for moving base RTK mode, simultaneous reception of four GNSS systems, support for augment positioning systems, accurate & quick positioning with minimal drifting, and exceptional anti-spoofing & anti-jamming capabilities. It is pretty simple to enable GNSS functionality for your ROCK SBC, Raspberry Pi, Banana Pi, etc. by just hooking it to the SBC's. Supports Raspberry Pi series boards, Rock SBC series boards, Jetson Nano, Banana Pi, and more with a standard 40PIN GPIO extension header... Fast convergence times, centimeter-level accuracy, and high update rates for multi-band RTK Supports Moving base RTK mode, enabling centimeter-level accuracy and precise terminal navigation. Supports simultaneous receiving of 4 GNSS constellations (GPS, BeiDou, Galileo, and GLONASS) while yet using very little power. Enhance systems that provide service location positionings, such as SBAS, QZSS, IMES, and D-GPS Support for A-GNSS (Assisted GNSS), which speeds up initial positioning and increases acquisition sensitivity Features strong anti-spoofing and anti-jamming capabilities, -167dBm navigational sensitivity, and supports geo-fencing. Supports U-Center, a simple module configuration method Rechargeable batteries are supported via the onboard battery holder, which protects ephemeris data and hot starts.Specification: GNSS features GNSS BeiDou, Galileo, GLONASS, GPS / QZSS Number of concurrent GNSS 4 GNSS platform Concurrent GNSS GNSS bands B1I, B2I, E1B/C, E5b, L1C/A, L1OF, L2C, L2OF Oscillators TCXO Interfaces UART 2 USB 1 I2C 1 SPI 1 Electrical data Maximum supply [V] 3.6 Minimum supply [V] 2.7 Environmental data,quality & reliability Maximum temperature [°C] 85 Minimum temperature [°C] -40 Features Active antenna / LNA control ✓ Active antenna / LNA supply ✓ Additional SAW ✓ Antenna open circuit detection pin ✓ Antenna short circuit detect / protect pin ✓ Base station with survey-in ✓ Carrier phase output ✓ Data logging ✓ Jamming detection ✓ Programmable flash memory ✓ RTC crystal ✓ RTK rover ✓ Secure boot ✓ Timepulse output ✓ General features Antennas Pin (active) for external antenna Resources: Software GitHub: Getting-started guide Hardware GitHub: Hardware Design files like Schematic, 3D File, etc.