Handheld GNSS positioning in urban canyons and under tree canopy

By on 20 February, 2011
 
Trimble has introduced the GeoExplorer 6000 series of high-accuracy Global Navigation Satellite System (GNSS) handheld computers. The series is claimed to deliver dramatic improvements in difficult GNSS environments such as urban canyons and under tree canopies, using Trimble Floodlight satellite shadow reduction technology.
 
The Trimble GeoExplorer 6000 series handhelds are purpose-built for high-accuracy data collection and integrate a range of new features, including a dual-frequency GPS and GLONASS receiver and antenna, 5-megapixel camera and 3.5G data modem. The handheld features large sunlight-readable display, field-swappable battery, and a powerful processor.
 
The GeoExplorer 6000 series GeoXH handheld is said to achieve decimeter (4-inch) accuracy in real time, and the GeoXT handheld 75 cm (30 inch) accuracy in real time and 50 cm (20 inch) accuracy after post-processing. Both handheld GNSS receivers are supported by Trimble’s range of mapping & GIS software Floodlight technology comes standard on the GeoXH and is available as an option for the GeoXT version.
 

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