{"product_id":"bzgnss-gps-module-bz121-bz181-bz251-dual-protocol-m10","title":"BZGNSS GPS Module BZ-121\/181\/251 Dual Protocol M10 Chip for FPV Drone","description":"\u003ch2\u003eProfessional Dual-Protocol GPS Positioning Module with U-blox M10 Chip for FPV Drones\u003c\/h2\u003e\n\n\u003cp\u003eThe BZGNSS GPS module series (BZ-121, BZ-181, BZ-251) features the advanced U-blox M10 tenth-generation chip with dual-protocol support (NMEA\/UBLOX), multi-constellation positioning (GPS, GLONASS, BDS, GALILEO, SBAS, QZSS), and ceramic antenna for reliable satellite reception. Perfect for FPV drones, fixed-wing aircraft, and RC planes requiring failsafe return-to-home (RTH), position hold, and precision navigation capabilities.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eU-blox M10 Chip\u003c\/strong\u003e - Tenth-generation GPS technology\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual Protocol Support\u003c\/strong\u003e - NMEA and UBLOX protocols\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Constellation\u003c\/strong\u003e - GPS, GLONASS, BDS, GALILEO, SBAS, QZSS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e72 Search Channels\u003c\/strong\u003e - Fast satellite acquisition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeramic Antenna\u003c\/strong\u003e - Oil-spray coated for durability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Accuracy\u003c\/strong\u003e - 1.5m horizontal positioning (open air)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10Hz Update Rate\u003c\/strong\u003e - Smooth position tracking\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Sizes\u003c\/strong\u003e - 12mm to 25mm options\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide Temperature Range\u003c\/strong\u003e - -40°C to +85°C operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompass Option\u003c\/strong\u003e - QMC5883 on BZ-251\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePerfect For\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eFPV racing and freestyle drones\u003c\/li\u003e\n\u003cli\u003eFixed-wing RC aircraft\u003c\/li\u003e\n\u003cli\u003eLong-range FPV missions\u003c\/li\u003e\n\u003cli\u003eReturn-to-home (RTH) functionality\u003c\/li\u003e\n\u003cli\u003ePosition hold and GPS rescue\u003c\/li\u003e\n\u003cli\u003eAutonomous flight modes\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eModel Comparison\u003c\/h3\u003e\n\n\u003ch4\u003eBZ-121 (Ultra-Compact)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 12×16×4.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 2.2g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip:\u003c\/strong\u003e U-blox M10050\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaud Rate:\u003c\/strong\u003e 115200 bps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol:\u003c\/strong\u003e NMEA\/UBLOX (dual)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate Rate:\u003c\/strong\u003e 1-10Hz (default 10Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompass:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Ultra-lightweight builds, racing quads\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eBZ-181 (Compact)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 18×18×8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~5g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip:\u003c\/strong\u003e U-blox M10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaud Rate:\u003c\/strong\u003e 9600 bps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol:\u003c\/strong\u003e UBLOX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate Rate:\u003c\/strong\u003e 1-10Hz (default 1Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompass:\u003c\/strong\u003e No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Compact builds, freestyle drones\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eBZ-251 (Standard with Compass)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 25×25×8mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e ~8g\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip:\u003c\/strong\u003e U-blox M10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBaud Rate:\u003c\/strong\u003e 115200 bps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtocol:\u003c\/strong\u003e NMEA\/UBLOX (dual)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpdate Rate:\u003c\/strong\u003e 1-10Hz (default 10Hz)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompass:\u003c\/strong\u003e Yes (QMC5883)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBest For:\u003c\/strong\u003e Full-featured builds, fixed-wing, autonomous flight\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ch4\u003eCommon Specifications (All Models)\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Family:\u003c\/strong\u003e U-blox M10 (tenth generation)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstellations:\u003c\/strong\u003e GPS L1, GLONASS L1, BDS B1, GALILEO E1, SBAS L1, QZSS L1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower:\u003c\/strong\u003e 5V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceiving Channels:\u003c\/strong\u003e 72 search channels\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAntenna:\u003c\/strong\u003e Ceramic antenna with oil-spray coating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpeed Accuracy:\u003c\/strong\u003e 0.05 m\/s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHorizontal Positioning Accuracy:\u003c\/strong\u003e 2D ACC 1.5m (open air)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceiving Sensitivity:\u003c\/strong\u003e Trace -162dBm, Capture -160dBm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating Temperature:\u003c\/strong\u003e -40°C to +85°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStorage Temperature:\u003c\/strong\u003e -40°C to +105°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eDynamic Characteristics\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Altitude:\u003c\/strong\u003e 50,000m\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Speed:\u003c\/strong\u003e 500 m\/s\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMax Acceleration:\u003c\/strong\u003e 4G\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eAdvanced Features\u003c\/h3\u003e\n\n\u003ch4\u003eU-blox M10 Tenth-Generation Chip\u003c\/h4\u003e\n\u003cp\u003eThe latest U-blox M10 chip delivers superior performance with faster satellite acquisition, improved accuracy, lower power consumption, and enhanced interference rejection compared to previous generations, ensuring reliable positioning even in challenging RF environments.\u003c\/p\u003e\n\n\u003ch4\u003eMulti-Constellation Support\u003c\/h4\u003e\n\u003cp\u003eSimultaneous tracking of GPS, GLONASS, BDS (BeiDou), GALILEO, SBAS, and QZSS satellites with 72 search channels provides faster lock times, improved accuracy, and better reliability in urban canyons or areas with limited sky visibility.\u003c\/p\u003e\n\n\u003ch4\u003eDual Protocol Support\u003c\/h4\u003e\n\u003cp\u003eBZ-121 and BZ-251 support both NMEA and UBLOX protocols, providing compatibility with a wide range of flight controllers including Betaflight, iNav, ArduPilot, and PX4, while BZ-181 uses UBLOX protocol for streamlined integration.\u003c\/p\u003e\n\n\u003ch4\u003eHigh Update Rate\u003c\/h4\u003e\n\u003cp\u003eConfigurable update rates from 1Hz to 10Hz (default 10Hz on BZ-121\/251, 1Hz on BZ-181) provide smooth position tracking for responsive GPS rescue, accurate position hold, and precise autonomous navigation.\u003c\/p\u003e\n\n\u003ch4\u003eCeramic Antenna with Oil-Spray Coating\u003c\/h4\u003e\n\u003cp\u003eHigh-quality ceramic antenna with protective oil-spray coating prevents scratching and oxidation while delivering excellent satellite reception performance across all supported frequency bands.\u003c\/p\u003e\n\n\u003ch4\u003eIntegrated Compass (BZ-251)\u003c\/h4\u003e\n\u003cp\u003eThe BZ-251 includes a QMC5883 compass for heading information, enabling advanced features like heading hold, return-to-home with proper orientation, and improved autonomous flight capabilities.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's Included\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e1× BZGNSS GPS module (BZ-121, BZ-181, or BZ-251 depending on selection)\u003c\/li\u003e\n\u003cli\u003eMounting hardware (varies by model)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat You'll Need\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eCompatible flight controller (Betaflight, iNav, ArduPilot, PX4, etc.)\u003c\/li\u003e\n\u003cli\u003eAppropriate cable\/connector for your FC\u003c\/li\u003e\n\u003cli\u003eMounting location with clear sky view\u003c\/li\u003e\n\u003cli\u003e5V power supply from flight controller\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFlight Controller Compatibility\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBetaflight:\u003c\/strong\u003e GPS rescue mode, position hold\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eiNav:\u003c\/strong\u003e Full autonomous navigation, waypoints, RTH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArduPilot:\u003c\/strong\u003e Advanced autonomous missions\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePX4:\u003c\/strong\u003e Professional autonomous flight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther:\u003c\/strong\u003e Any FC supporting NMEA or UBLOX GPS protocols\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFPV Racing:\u003c\/strong\u003e GPS rescue for out-of-range recovery\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFPV Freestyle:\u003c\/strong\u003e Return-to-home safety feature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong-Range FPV:\u003c\/strong\u003e Precision navigation and RTH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFixed-Wing:\u003c\/strong\u003e Autonomous flight, waypoint navigation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRC Planes:\u003c\/strong\u003e Position hold, failsafe RTH\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAutonomous Missions:\u003c\/strong\u003e Waypoint flying, survey missions\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eMount with clear view of sky (top of aircraft)\u003c\/li\u003e\n\u003cli\u003eKeep away from high-power RF transmitters (VTX, control link)\u003c\/li\u003e\n\u003cli\u003eEnsure antenna faces upward for best reception\u003c\/li\u003e\n\u003cli\u003eUse shielded cable if running near ESCs or motors\u003c\/li\u003e\n\u003cli\u003eConfigure correct baud rate in flight controller\u003c\/li\u003e\n\u003cli\u003eAllow 1-2 minutes for initial satellite lock\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eImportant Notes\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003eThree models available: BZ-121 (12×16mm), BZ-181 (18×18mm), BZ-251 (25×25mm)\u003c\/li\u003e\n\u003cli\u003eU-blox M10 tenth-generation GPS chip\u003c\/li\u003e\n\u003cli\u003eMulti-constellation: GPS, GLONASS, BDS, GALILEO, SBAS, QZSS\u003c\/li\u003e\n\u003cli\u003e72 search channels for fast satellite acquisition\u003c\/li\u003e\n\u003cli\u003eDual protocol support: NMEA\/UBLOX (BZ-121, BZ-251), UBLOX only (BZ-181)\u003c\/li\u003e\n\u003cli\u003eUpdate rate: 1-10Hz configurable\u003c\/li\u003e\n\u003cli\u003eHorizontal accuracy: 1.5m (open air)\u003c\/li\u003e\n\u003cli\u003eSpeed accuracy: 0.05 m\/s\u003c\/li\u003e\n\u003cli\u003eCeramic antenna with oil-spray coating\u003c\/li\u003e\n\u003cli\u003eCompass: QMC5883 (BZ-251 only)\u003c\/li\u003e\n\u003cli\u003ePower: 5V\u003c\/li\u003e\n\u003cli\u003eOperating temperature: -40°C to +85°C\u003c\/li\u003e\n\u003cli\u003eMax altitude: 50,000m\u003c\/li\u003e\n\u003cli\u003eMax speed: 500 m\/s\u003c\/li\u003e\n\u003cli\u003eMax acceleration: 4G\u003c\/li\u003e\n\u003cli\u003eWeight: 2.2g (BZ-121) to ~8g (BZ-251)\u003c\/li\u003e\n\u003cli\u003eCompatible with Betaflight, iNav, ArduPilot, PX4\u003c\/li\u003e\n\u003cli\u003eEnables GPS rescue, RTH, position hold, autonomous flight\u003c\/li\u003e\n\u003cli\u003eRecommended for ages 14+\u003c\/li\u003e\n\u003cli\u003eFlight controller and cables not included\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BZGNSS","offers":[{"title":"1PCS BZ 251","offer_id":46709136720012,"sku":"1005010394556282-1PCS BZ 251","price":37.0,"currency_code":"USD","in_stock":true},{"title":"1PCS BZ 121","offer_id":46709136752780,"sku":"1005010394556282-1PCS BZ 121","price":34.0,"currency_code":"USD","in_stock":true},{"title":"1PCS BZ 181","offer_id":46709136785548,"sku":"1005010394556282-1PCS BZ 181","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0579\/2019\/2652\/files\/S52e507dd7e3c43a9ae2f937b4afe0958b.webp?v=1773457197","url":"https:\/\/thedroneflight.com\/products\/bzgnss-gps-module-bz121-bz181-bz251-dual-protocol-m10","provider":"TheDroneFlight","version":"1.0","type":"link"}