{"product_id":"gnss-positioning-module-mt3331-gps-bds-glonass-multi-system","title":"MT3331 GNSS Module – GPS BDS GLONASS Multi-System Positioning","description":"\u003ch2\u003eSKG12F GNSS Positioning Module – MT3331 | GPS, BDS \u0026amp; GLONASS Multi-System\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eSKG12F GNSS Positioning Module (MT3331)\u003c\/strong\u003e is a compact, high-performance positioning solution designed for developers, engineers, and electronics enthusiasts who demand accuracy, reliability, and low power consumption in a small form factor. Supporting \u003cstrong\u003eGPS, BDS (BeiDou), and GLONASS\u003c\/strong\u003e simultaneously, this multi-constellation module delivers robust satellite acquisition even in challenging signal environments.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-System Support:\u003c\/strong\u003e Simultaneous GPS \/ BDS \/ GLONASS reception for superior positioning accuracy and faster satellite lock.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-High Sensitivity:\u003c\/strong\u003e Tracking sensitivity of \u003cstrong\u003e-165 dBm\u003c\/strong\u003e; acquisition sensitivity of \u003cstrong\u003e-148 dBm\u003c\/strong\u003e — performs reliably in urban canyons, dense foliage, and other weak-signal conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Low Power Consumption:\u003c\/strong\u003e Engineered for battery-powered and energy-sensitive applications, making it ideal for IoT devices, wearables, and portable trackers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e Measures just \u003cstrong\u003e16 × 12.2 × 2.4 mm\u003c\/strong\u003e — fits effortlessly into space-constrained PCB designs.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUART Communication Interface:\u003c\/strong\u003e Straightforward serial integration with NMEA protocol output — delivers position, speed, and time data reliably to your host system.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExternal Antenna Support:\u003c\/strong\u003e Compatible with an external antenna for enhanced signal reception in demanding environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNMEA Protocol Output:\u003c\/strong\u003e Standard serial data messages ensure easy compatibility with a wide range of microcontrollers, development boards, and software platforms.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eChipset\u003c\/td\u003e\n\u003ctd\u003eMT3331\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eSupported Networks\u003c\/td\u003e\n\u003ctd\u003eGPS \/ BDS (BeiDou) \/ GLONASS\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eFrequency Band\u003c\/td\u003e\n\u003ctd\u003eGPS L1, BDS B1, GLONASS L1\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCommunication Interface\u003c\/td\u003e\n\u003ctd\u003eUART\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eProtocol\u003c\/td\u003e\n\u003ctd\u003eNMEA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eTracking Sensitivity\u003c\/td\u003e\n\u003ctd\u003e-165 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAcquisition Sensitivity\u003c\/td\u003e\n\u003ctd\u003e-148 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eAntenna Connection\u003c\/td\u003e\n\u003ctd\u003eExternal Antenna\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e16 × 12.2 × 2.4 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eIdeal Applications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eIoT asset tracking devices\u003c\/li\u003e\n  \u003cli\u003eDrone and UAV navigation systems\u003c\/li\u003e\n  \u003cli\u003ePortable GPS loggers\u003c\/li\u003e\n  \u003cli\u003eSmart wearables and fitness trackers\u003c\/li\u003e\n  \u003cli\u003eAutomotive telematics modules\u003c\/li\u003e\n  \u003cli\u003eRobotics and autonomous navigation projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eFor a deeper understanding of GNSS technology and satellite navigation systems, visit the \u003ca href=\"https:\/\/www.nist.gov\/pml\/time-and-frequency-division\/popular-links\/time-frequency-z\/time-and-frequency-z-g#gps\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eNIST Time \u0026amp; Frequency Division – GPS Reference\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: What satellite systems does the MT3331 GNSS module support?\u003c\/h4\u003e\n\u003cp\u003eA: The MT3331-based SKG12F GNSS module simultaneously supports \u003cstrong\u003eGPS, BDS (BeiDou), and GLONASS\u003c\/strong\u003e constellations. This multi-system capability significantly improves positioning accuracy and reduces the time to first fix (TTFF), especially in environments where signals from a single constellation may be obstructed.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What communication interface does this GNSS module use and how do I integrate it?\u003c\/h4\u003e\n\u003cp\u003eA: The module uses a standard \u003cstrong\u003eUART serial interface\u003c\/strong\u003e and outputs data using the widely supported \u003cstrong\u003eNMEA protocol\u003c\/strong\u003e. This makes it straightforward to connect to microcontrollers (such as Arduino, STM32, or Raspberry Pi), development boards, or any host system with a UART port. Simply wire the TX\/RX lines and configure your baud rate to begin receiving position, speed, and time data.\u003c\/p\u003e\n\n\u003ch4\u003eQ: What type of antenna does this module require?\u003c\/h4\u003e\n\u003cp\u003eA: The SKG12F GNSS module is designed for use with an \u003cstrong\u003eexternal antenna\u003c\/strong\u003e, which allows you to optimize antenna placement for the best possible signal reception in your specific application or enclosure design. An external active patch antenna is typically recommended for strong satellite acquisition performance.\u003c\/p\u003e\n\n\u003ch4\u003eQ: Is this module suitable for low-power or battery-operated devices?\u003c\/h4\u003e\n\u003cp\u003eA: Yes. The MT3331-based module is engineered with \u003cstrong\u003eultra-low power consumption\u003c\/strong\u003e in mind, making it an excellent choice for battery-powered IoT devices, portable trackers, wearables, and other energy-sensitive applications where runtime efficiency is critical.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What satellite systems does the MT3331 GNSS module support?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The MT3331-based SKG12F GNSS module simultaneously supports GPS, BDS (BeiDou), and GLONASS constellations. 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The MT3331-based module is engineered with ultra-low power consumption in mind, making it an excellent choice for battery-powered IoT devices, portable trackers, wearables, and other energy-sensitive applications where runtime efficiency is critical.\"}}]}\u003c\/script\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"BreadcrumbList\", \"itemListElement\": [{\"@type\": \"ListItem\", \"position\": 1, \"name\": \"Home\", \"item\": \"https:\/\/vpggdm-rp.myshopify.com\/\"}, {\"@type\": \"ListItem\", \"position\": 2, \"name\": \"Tech, Tools \u0026 Auto\", \"item\": \"https:\/\/vpggdm-rp.myshopify.com\/collections\/tech-tools-auto\"}, {\"@type\": \"ListItem\", \"position\": 3, \"name\": \"MT3331 GNSS Module – GPS BDS GLONASS Multi-System Positioning\", \"item\": \"https:\/\/vpggdm-rp.myshopify.com\/products\/gnss-positioning-module-mt3331-gps-bds-glonass-multi-system\"}]}\u003c\/script\u003e","brand":"Qme","offers":[{"title":"Default Title","offer_id":49706977263830,"sku":"\u003cnone\u003e","price":74.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0827\/5243\/8486\/files\/S6a6a1b4cd998453cb179d361cd643647R.webp?v=1785175438","url":"https:\/\/qmeboost.com\/products\/gnss-positioning-module-mt3331-gps-bds-glonass-multi-system","provider":"Qme","version":"1.0","type":"link"}