Features:

• SiRF StarIII low power single chipset
• Compact module size for easy
• integration : 15 x 14 x 2.8 mm
• RoHS compliance

1. Introduction
The GE302 module is a high sensitivity, low power and very compact Surface Mount Device (SMD). This 20-channel global positioning system (GPS) receiver is designed for a broad spectrum of OEM applications and is based on the fast and deep GPS signal search capabilities of SiRFStarIII™ low power single chipset architecture.
GE302 is designed to allow quick and easy integration into GPS-related applications, especially for compact size devices, such as:

• PDA, Pocket PC and other computing devices
• Fleet Management / Asset Tracking
• AVL and Location-Based Services
• Hand-held Device for Personal Positioning and Navigation

1.1. Features
Hardware and Software

• Based on the high performance features of the SiRF Star III low power single chipset.
• Compact module size for easy integration: 15x14x2.8 mm (590.6x551.2x110.2 mil).
• SMT pads allow for fully automatic assembly processes equipment and reflow soldering
• RoHS compliant (lead-free)

Performance

• Cold/Warm/Hot Start Time: 42 / 38 / 1 sec.
• Reacquisition Time: 0.1 second
• RF Metal Shield for best performance in noisy environments
• Multi-path Mitigation Hardware

Interface

• TTL level serial port for GPS communications interface
• Protocol: NMEA-0183/SiRF Binary (default NMEA)
• Baud Rate: 4800 ~19200 bps (default 9600)

1.2. Advantages

• Ideal for compact size devices
• Data / Power / RF through surface mount pads
• Cost saving through elimination of RF and board to board digital connectors
• Flexible and cost effective hardware design for different application requirements
• Secure SMD PCB mounting method

2. Technical specifications

Hardware Features

• Based on the high performance features of the SiRF Star III low power single chipset
• Compact module size for easy integration: 15x14x2.8 mm (590.6x551.2x110.2 mil)
• SMT pads allow for fully automatic assembly processes equipment and reflow soldering
• RoHS compliant (lead-free)

2.2. Software Features
The firmware used on GE302 module is GSW3.2.x, the software for SiRF StarIII low
power single chipset receivers, and the default configuration is as following description:

2.3. Mechanical specification
The Physical dimensions of the GE302 GPS Module are as follow:

2.4. Recommended GPS Antenna Specification
This GE302 receiver is designed for use with passive antenna.

2.5. Environmental Specification

2.6. ESD Specification
Air Discharge: 2 ; 4 ; 8KV ( direct )
Contact Discharge: 2 ; 4 KV ( direct / indirect )

2.7. Reference design

• All ground pads attach directly to ground plane by way of via.
• All components are reference only.
• The antenna input should have the proper impedance matching.

Performance Characteristics
2.8. Position and velocity accuracy

2.9. Dynamic constrains

2.10. Acquisition time1