# GNSS LS550G (00) ## Summary - Ultracompact GNSS module - 5.0 mm × 5.0 mm × 1.05 mm - Approx. 0.07 g - Operating temperature range: -40°C to +85°C - GPS, GLONASS, Galileo, BDS and QZSS ## Key features - Multi-constellation system: GPS, GLONASS, Galileo, BDS and QZSS for fast and accurate positioning in any environment - Ultracompact form factor: 5.0mm × 5.0mm × 1.05mm - SIP technology - Industry-leading sensitivity: -165 dBm (tracking) and -147 dBm (acquisition) - Enhanced sensitivity with integrated LNA - Anti-jamming with embedded multi-tone active interference canceller - Supported interfaces: UART, I2C, and SPI ## Overview Based on the latest enhanced chipset, the Quectel LS550G (00) GNSS module supports concurrent reception of GPS, GLONASS, Galileo, BDS and QZSS constellations. The SIP (System in Package) technology significantly reduces the module package size, achieving an ultracompact form factor of 5.0 mm × 5.0 mm × 1.05 mm. Additionally, the ultracompact SIP design contributes to lower signal attenuation, reduced interference, and improved resistance to shock, moisture, and corrosion. Compared with single constellation receivers, the multi-constellation system on the LS550G (00) increases the number of visible satellites, reduces the time to first fix and improves positioning accuracy, especially in dense urban canyons. The integrated LNA delivers high sensitivity, facilitates high accuracy positioning, enables fast signal tracking and acquisition, and enhances module performance even in challenging environments. By combining Enhanced Prediction Orbit on Chip (EPOC) technology—an advanced AGNSS feature—with Adaptive Low Power (ALP) mode, the LS550G (00) module achieves high performance, low power consumption, and compliance with industrial standards. EPOC technology enables the module to calculate and predict satellite orbits automatically by using the ephemeris data (valid up to 3 days) stored in the internal RAM. As a result, the LS550G (00) obtains a position fix quickly, even at lower signal levels, while maintaining low power consumption. With the ALP technology, the LS550G (00) adaptively adjusts its on/off time based on environmental and motion conditions to achieve a balance between positioning accuracy and power consumption. Enhanced performance makes LS550G (00) well-suited for a variety of consumer and industrial applications, including industrial PDAs. Its ultracompact form factor and low power consumption make it a preferred solution for power sensitive and space-sensitive applications, such as portable and wearable devices. ## Documentation and resources - **[Application Note: Quectel_Convert_NMEA_Coordinates_into_Google_Earth_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 293.10 KB) - **[Application Note: Quectel_LS550G(00)_AGNSS_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 851.70 KB) - **[Firmware Upgrade Guide: Quectel_LS550G(00)_Firmware_Upgrade_Guide_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 604.28 KB) - **[Low Power Mode Application Note: Quectel_LS550G(00)_Low_Power_Mode_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 375.90 KB) - **[SPI Application Note: Quectel_LS550G(00)_SPI_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 410.99 KB) - **[I2C Application Note: Quectel_LS550G(00)_I2C_Application_Note_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 522.70 KB) - **[GNSS Protocol Specification: Quectel_LS550G(00)_GNSS_Protocol_Specification_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 574.30 KB) - **[2D Dimensions: Quectel_LS550G(00)_2D_Dimensions_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 168.67 KB) - **[3D Dimensions: Quectel_LS550G(00)_3D_Dimensions_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 955.35 KB) - **[Footprint & Part: Quectel_LS550G(00)_Footprint&Part_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 201.38 KB) - **[Reference Design: Quectel_LS550G(00)_Reference_Design_V1.0](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 508.31 KB) - **[Hardware Design: Quectel_LS550G(00)_Hardware_Design_V1.1](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 1.45 MB) - **[ToolKit: QGNSS_V2.5_EN](https://www.quectel.com/login/?redirect=https%3A%2F%2Fwww.quectel.com%2Fproduct%2Fgnss-ls550g-00%2F)** (File Size: 154.56 MB) ## Related products ### [YEGB000Q1C GNSS L1 adhesive + magnetic mount low profile active external antenna](https://www.quectel.com/product/yegb000q1c-active-gnss-magnetic-adhesive-antenna/) ![YEGB000Q1C GNSS L1 adhesive + magnetic mount low profile active external antenna](https://www.quectel.com/content/uploads/2024/09/YEGB000Q1C-side-view-e1727168513857.png) ### [YSAN025XX DC~6GHz SMA female to IPEX MHF1 cable with an O-ring](https://www.quectel.com/product/ysan025xx-antenna-cable/) ![YSAN025XX DC~6GHz SMA female to IPEX MHF1 cable with an O-ring](https://www.quectel.com/content/uploads/2024/04/YSAN026XX_900x454.png) ### [YFGC025WWC GNSS L1 adhesive/soldering mount ceramic patch passive embedded antenna](https://www.quectel.com/product/yfgc025wwc-gnss-adhesive-solder-mount-antenna/) ![YFGC025WWC GNSS L1 adhesive/soldering mount ceramic patch passive embedded antenna](https://www.quectel.com/content/uploads/2024/06/YFGC025WWC_1315x1156.png) ### [YFGA025E3CM GNSS L1 buckle mount ceramic patch + cable active embedded antenna](https://www.quectel.com/product/yfga025ecm-gnss-ceramic-patch-active-embedded-antenna/) ![YFGA025E3CM GNSS L1 buckle mount ceramic patch + cable active embedded antenna](https://www.quectel.com/content/uploads/2024/10/YFGA025E3CM-600x424-1.png) ## Product Brochure [Download](https://www.quectel.com/content/uploads/2026/05/Quectel_Product_Brochure_V8.6.pdf) ## Also of interest - [GNSS LC29H series](https://www.quectel.com/product/gnss-lc29h/) - [GNSS LC76G series](https://www.quectel.com/product/gnss-lc76g-series/) - [GNSS LC29H](https://www.quectel.com/ja/product/gnss-lc29h/)