Introduction
NET-G3A Operator’s Manual
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Figure 1-1. Net-G3A Receiver
Principles of Operation
Whether based on a single reference station or a network of reference
stations, static and mobile applications that use GNSS data from a
high performance reference station benefit from the highest possible
levels of accuracy and precision.
This section gives an overview of existing and proposed Global
Navigation Satellite Systems (GNSS) and receiver functions to help
you understand and apply basic operating principles, allowing you to
get the most out of your receiver.
GNSS Overview
Currently, the following three global navigation satellite systems
(GNSS) offer line-of-site radio navigation and positioning, velocity,
and time services on a global, all-weather scale to any user equipped
with a GNSS tracking receiver on or near the earth’s surface:
• GPS – the Global Positioning System maintained and operated by
the United States Department of Defense. For information on the
status of this system, visit the US Naval Observatory website or
the US Coast Guard website.
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