GPS modules rely on satellite signals to achieve positioning, navigation, and timing functions. Their core advantages are multi-scenario adaptability, controllable accuracy, and convenient integration. They are available in single-mode/multi-mode and single-frequency/dual-frequency types, catering to both consumer and industrial needs.

I. Core Classification (by Form Factor/Function)

Single GPS Module: No built-in antenna; requires an external antenna. Available in programmable (for customized scenarios) and non-programmable (low-cost and universal) versions. Requires embedding on a PCB board and is suitable for device integration.

Integrated Antenna Module: Integrates a ceramic antenna, eliminating the need for an additional antenna. Simple circuit design; ready to use after wiring. Suitable for rapid sample testing and small devices.

Gmouse Module: A finished product with a housing and long antenna. Multiple interfaces are available (USB/DB9, etc.). Antenna length can be customized. Suitable for convenient deployment scenarios such as automotive aftermarket installations.

Timing Module: Primarily focuses on UTC time synchronization with high accuracy. Suitable for scenarios requiring time synchronization, such as power, finance, and communication base stations.

Multi-mode module: Supports multiple satellite systems including GPS, BeiDou, and GLONASS, offering faster positioning and stronger anti-interference capabilities, making it the current mainstream choice.

II. Key Selection Parameters

1. Positioning Accuracy: Meter-level (consumer grade, suitable for wearables and vehicle navigation), centimeter-level (industrial grade, suitable for surveying and autonomous driving).

2. Satellite System: Single-mode (GPS only, low cost), multi-mode (multi-system integration, superior stability).

3. Power Consumption and Size: Low-power version suitable for wearables and IoT devices; small-size version saves device space.

4. Data Update Rate: Up to 25Hz, high-speed suitable for dynamic scenarios such as drones and high-speed vehicles.

5. Interface Type: TX/RX, USB, DB9, etc., matching the communication requirements of the main control board.

III. Ebyte Core Model Recommendations

1. Multi-mode Universal Model (Mainstream Choice)

E108-GN03: Supports 6 major satellite systems including BDS/GPS/GLONASS, meter-level accuracy, AGNSS-assisted positioning, update rate up to 25Hz, suitable for vehicle navigation and asset positioning.

E108-GN04: Integrated RF baseband design, integrated power management and storage, low power consumption, compatible with multiple vendor interfaces, shortening development cycle, suitable for TBOX and police PDAs.

2. Integrated Antenna Model (Easy Deployment)

E108GN02D: Multi-mode positioning + built-in active ceramic antenna, ready to use, no need for additional antenna integration, suitable for small trackers and smart wearable devices.

3. High-Precision Model (Industrial Application)

Centimeter-level Series: Supports dual-frequency multi-mode, suitable for autonomous driving, precision agriculture, and drones, strong anti-interference, stable positioning in complex environments.

IV. Typical Application Scenarios

Consumer Grade: Smart wearables (children's/elderly watches), in-vehicle navigation, shared bicycles, dashcams.

Industrial Grade: Precise drone positioning, logistics fleet management, precision agriculture, power base station timing.

Special Scenarios: Emergency rescue (personnel/equipment positioning), security enforcement devices, marine vessel navigation.