The M9N GPS uses multi-constellation GNSS powered by u-blox M9N,a concurrent GNSS receiver which can receive and track multiple GNSS systems. Owing to the multi-band RF front-end architecture all four major GNSS constellations, GPS,Galileo, GLONASS and BeiDou can be received concurrently. The high-gain 25 x 25 mm2 patch antenna provides excellent performance and the omnidirectional antenna radiation pattern increases flexibility for device installation.It features active circuitry for the ceramic patch antenna, rechargeable backup battery for warm starts. Feature Ublox M9N GNSS Reciever Accurate Positioning Fast Navigation Update Rate IST8310 Compass High-gain 25*25*4mm antenna Internal Buzzer, Safety switch Ultra Bright UI RGB LED Note The Status LED driver has changed. This LED is support in PX4 1.14, ArduPilot 4.4.0 & later. (More info) Holybro M10 GPS Holybro M9N GPS GNSS Receiver Ublox M10 Ublox M9N Number of Concurrent GNSS Up to 4 GNSS Up to 4 GNSS BeiDou BeiDou Galileo Galileo GLONASS GLONASS GPS GPS QZSS QZSS Frequency Band GPS L1 GPS L1 Galileo E1 Galileo E1 GLONASS L1 GLONASS L1 BeiDou B1 BeiDou B1 SBAS L1 SBAS L1 QZSS L1 QZSS L1 Compass IST8310 IST8310 Output Protocol UBX (U-blox) UBX (U-blox) NMEA NMEA Accuracy 2.0m CEP 1.5m CEP Nav. Update Rate Up to 25 Hz (single GNSS), Up to 25 Hz (4 concerrent GNSS) Up to 10 Hz (4 concurrent GNSS) GNSS Augmentation System EGNOS, GAGAN, MSAS and WAAS EGNOS, GAGAN, MSAS and WAAS QZSS: L1S QZSS: L1S Default Baud Rate 115200 115200 Input Voltage 4.7-5.2V 4.7-5.2V Port Type JST-GH-10P JST-GH-10P Antenna 25 x 25 x 4 mm ceramic patch antenna 25 x 25 x 4 mm ceramic patch antenna Power consumption Less than 200mA @ 5V Less than 200mA @ 5V Operating Temperature -40~80C -40~80C Dimension φ50 x14.4 mm φ50 x14.4 mm Weight 32g 32g Cable Length 26cm (42cm cable purchase separately) 26cm (42cm cable purchase separately) Other Tri-color LED Tri-color LED Onboard Buzzer Onboard Buzzer Safety Switch Safety Switch LNA MAX2659ELT+ RF Amplifier LNA MAX2659ELT+ RF Amplifier Rechargeable Farah capacitance Rechargeable Farah capacitance Low noise 3.3V regulator Low noise 3.3V regulator Ardupilot User: If unable to preform normal compass calibration "compass dance" for any reason, set parameter COMPASS_ORIENT=6 (Yaw270) for proper compass orientation. PIN MAP Reference Link: Holybro Documentation Ardupilot IST8310 Compass Orientation Dimension 3D CAD File Downloads Package Includes: 1x M9N GPS Module 1x Fixed Carbon Fiber GPS mount Spare Part & Accessories GPS Extended Length Cable