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81170_2.BOOK Page 3 Thursday, July 19, 2001 2:36 PM
Chapter 1: Introduction
Availability of the WAAS System in North America
Coverage Outside of North America
Figure 1-2: The WAAS System
The WAAS system is presently broadcasting and being tested for
aviation use. It is expected to be certified by the FAA in 2002. During
this testing and certification period, continuous service is expected,
however, brief signal outages may occur as refinements and upgrades
are made to the system. The status of WAAS and planned outages are
available on-line at Raytheon's website:
http://wwws.raytheontands.com/waas
or at Raymarine's website:
http://www.raymarine.com
EGNOS is currently in the early testing and qualification phases and
signal outages may occur at any time. The status of EGNOS and any
planned outages are available on-line at Raymarine's website:
http://www.raymarine.com
Use of Satellite Differential is currently disabled outside of the
WAAS reception area. When EGNOS is qualified for navigational
use, a procedure will be published on our website which will enable
EGNOS operation. See http://www.raymarine.com for latest
information.
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D4903-1
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