ATGM336H-5N series module is the general name of the small size high performance BDS/GNSS full constellation positioning and navigation module series. This series of module products are based on Zhongke Micro's fourth-generation low-power GNSS SOC single-chip-AT6558. Supports a variety of satellite navigation systems, including China's BDS (Beidou Satellite Navigation System), US GPS, Russia's GLONASS, EU's , Japan's QZSS and satellite augmentation systems SBAS (WAAS, EGNOS, GAGAN, MSAS). AT6558 is a true six-in-one multi-mode satellite navigation and positioning chip, including 32 tracking channels, can receive GNSS signals of six satellite navigation systems at the same time, and realize joint positioning, navigation and timing. This series of modules ATGM336H-5N has the advantages of high sensitivity, low power consumption, low cost, etc. It is suitable for car navigation, handheld positioning, wearable devices, and can directly replace Ublox MAX series modules. Output protocol: ATGM332D-5N series modules use UART as the main output channel and output according to the NMEA0183 protocol format. For details, please refer to "CASIC Multimode Satellite Navigation Receiver Protocol Specification". Excellent positioning and navigation functions, support single-system positioning of BDS/GPS/GLONASS satellite navigation systems, and any combination of multi-system joint positioning, and support QZSS and SBAS systems A-GNSS support Cold Start Capture Sensitivity: -148dBm Tracking sensitivity: -162dBm Positioning accuracy: 2.5 meters (CEP50, open field) Time to first fix: 32 seconds Low power consumption: continuous operation less than 25mA (@3.3V) Built-in antenna detection and antenna short-circuit protection Colour: black Material: metal + ABS Size: 2x2x2CM Package Contents: 4 x Module 4 x IPX ceramic active antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.