Availability of waas in north america, Figure 1-1 , th, Figure 1-2: waas coverage map – Raymarine Raystar 120 User Manual
Page 8
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Raystar 120 & Raystar 112LP GPS Receivers - Owner’s Handbook
Figure 1-1: The WAAS System
Your Raystar 120 SD-GPS Receiver can then use this correctional data to
refine the GPS positional data it receives. This results in improved
accuracy (typically less than 3 metres) compared with standard GPS
(typically 15 m) or land-based DGPS (typically 10 m).
Availability of WAAS in North America
The area coverage of WAAS includes the entire United States of America
(see Figure 1-2).
Figure 1-2: WAAS Coverage Map
D4903-1
D4910-1
0˚
15˚N
30˚N
45˚N
60˚N
75˚N
15˚S
0˚
15˚W
30˚W
45˚W
60˚W
90˚W
75˚W
105˚W
120˚W
135˚W
150˚W
165˚W
15˚E
135˚E
150˚E
165˚E
180˚
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