{"title":"Ultimate GPS Module - 66 channel w/10 Hz updates [MTK3339 chipset]","handle":"ultimate-gps-module-66-channel-w-10-hz-updates-mtk3339-chipset","url":"/products/ultimate-gps-module-66-channel-w-10-hz-updates-mtk3339-chipset","description":"A high-sensitivity GPS module built around the MTK3339 chipset, capable of tracking up to 22 satellites on 66 channels with 10 Hz position updates. At just 16 × 16 × 5 mm and under 6 grams, it packs an internal patch antenna, built-in datalogging, and ultra-low power consumption into a tiny footprint.\n\nThe module features an external active antenna input that automatically detects and switches to an external antenna when connected. Built-in FLASH datalogging stores up to 16 hours of time, date, position, and altitude data at 15-second intervals — no microcontroller interaction needed after the initial start command.\n\nKey Features\n\n\nMTK3339 Chipset – 66-channel, 22-satellite tracking with −165 dBm sensitivity\n\n10 Hz Update Rate – High-speed position updates for tracking applications\n\nBuilt-In Datalogging – Internal FLASH stores ~16 hours of GPS data (LOCUS)\n\nInternal Patch Antenna – With automatic switchover to external active antenna\n\nUltra Low Power – 20 mA during navigation\n\nPPS Output – Pulse-per-second signal on GPS fix\n\nRTC Battery Compatible – Supports backup battery for hot starts\n\n\nSpecifications\n\n\nChipset – MTK3339\n\nChannels – 66 (22 tracking)\n\nSensitivity – −165 dBm (tracking)\n\nUpdate Rate – Up to 10 Hz\n\nOperating Voltage – 3.3V\n\nCurrent Draw – 20 mA (navigation)\n\nDimensions – 16 × 16 × 5 mm\n\nWeight – ~6 g\n\n\n\nNote: This is the bare GPS module only — no breakout board or other components included. Soldering is required for integration. The module is available in the Adafruit Eagle Library as GPS_FGPMMOPA6H.\n\n\nIdeal For\n\nCustom GPS tracker builds\nDatalogging and asset tracking\nHigh-altitude balloon projects (tested to ~32 km)\nLow-power portable GPS applications\n\n\nPackage Contents\n\n1× GPS Module (MTK3339 chipset)\n\n\nResources\n\nArduino GPS Library (GitHub)\nTutorial & Guide\n","vendor":"Adafruit","product_type":"physical","in_stock":false,"options":[],"variants":[{"id":6691,"title":"Default Title","sku":"AF-790","price":50.26,"on_sale":false,"in_stock":false,"available_quantity":0,"option1":"Default Title"}]}