BZGNSS BZ-251 GPS Module

The BZGNSS BZ-251 is a standard-sized GPS module built around the 10th-generation u-blox M10 architecture. Designed for long-range FPV quads, cinematic lifters, and fixed-wing builds, it utilises a large 25x25mm ceramic patch antenna to ensure rapid satellite acquisition and a stable position lock in difficult environments.

Key features

• 10th-generation M10 chipset supports concurrent multi-constellation tracking across GPS, Galileo, GLONASS, and BDS.
• Large 25x25mm ceramic patch antenna provides significantly higher antenna gain than micro 18mm or 12mm alternatives.
• Integrated farad capacitor retains ephemeris data to enable rapid hot starts between battery swaps in the field.
• Standard UART and I2C interfaces offer straightforward integration with Betaflight, INAV, and ArduPilot flight controllers.

Specifications

• Chipset: 10th Gen M10
• Supported constellations: GPS, Galileo, GLONASS, BDS
• Antenna dimensions: 25 x 25 x 4 mm
• Input voltage: 3.3V - 5V
• Default baud rate: 115200 bps
• Supported firmware: Betaflight, INAV, ArduPilot

With its generous antenna footprint, the BZ-251 is best suited to 5-inch to 10-inch frames where top-plate mounting space permits a full-sized GPS, delivering the strict coordinate precision required for automated Return-to-Home (RTH) and waypoint flights.