GPS Receiver Module

A GPS receiver module is a critical component within a Guidance Controller/Computer system that acquires signals from multiple GPS satellites, calculates position through trilateration, and provides accurate navigation data to the guidance system for route planning, tracking, and autonomous operation. This module is designed for integration into larger electronic systems, particularly in the computer, electronic, and optical product manufacturing sector. It operates by receiving radio frequency signals from GPS satellites via an antenna, then amplifying and filtering these signals. A digital signal processor decodes the navigation messages and calculates position based on time-of-arrival measurements from multiple satellites. The module is built on a ceramic substrate with copper traces and contains silicon semiconductor components. Key parameters include an operating temperature range of -40 to 85 °C, a supply voltage of 3.3 to 5.5 V DC, and a position accuracy of ±2.5 m CEP with an active antenna. Acquisition sensitivity is -148 dBm (cold start), and tracking sensitivity is -165 dBm. Time to first fix (cold start) is 26 to 35 seconds at open sky. The update rate is 1 to 10 Hz (default 1 Hz). Operating humidity is 5 to 95% RH (non-condensing). Interface protocols include UART, I2C, and SPI (configurable). Dimensions are 10.4 × 14.0 × 2.2 mm (L × W × H), and weight is 1.0 to 1.5 g without antenna. Operating current is 25 to 45 mA at 3.3V. These values are typical and may vary; always verify model-specific specifications with the legal manufacturer or supplier. The module is intended for use in guidance systems where precise positioning is required. It is not a standalone device but a component for integration. For procurement, confirm the exact parameters and any applicable standards with the supplier.

The module receives radio frequency signals from GPS satellites using an antenna. The signals are then amplified and filtered to remove noise and interference. A digital signal processor decodes the navigation messages embedded in the signals. By measuring the time-of-arrival of signals from multiple satellites, the module calculates the receiver's position through trilateration. The calculated position, velocity, and time data are then output via the configured interface (UART, I2C, or SPI) for use by the guidance system.