Gps Setup - Raymarine 530 Owner's Handbook Manual

4-8

4.6 GPS Setup

GPS set up page provides you with information and the status of the tracked
navigation satellites for a SeaTalk GPS. It also enables you to SET UP a SeaTalk
Differential GPS, by manually retuning it to a different differential beacon.
The GPS Navigation Status pop-up window (shown in Figure 4-4) provides,
for each tracked satellite, the satellite number, a graphical signal strength bar
and its current usage status. HDOP and satellite Fix Status are also displayed.
Data for up to 12 satellites are shown.
Figure 4-4:
Positional accuracy is dependent upon certain parameters; in particular for
GPS, the azimuth and elevation angles are used in a triangulation process to
calculate position. HDOP (Horizontal Dilution Of Position) is a measure of
this accuracy; a higher figure signifies greater error. In ideal circumstances,
the figure should be in the region of 1.0. The Fix Status can indicate:
• FIX, where a satellite fix has been acquired.
• D-FIX, where a differential beacon fix has been acquired.
• SD-FIX, where a satellite differential fix has been acquired.
• NO FIX, where no fix can be acquired.
➤ To select GPS Set Up:
MENU
Press MENU, then press the GPS SETUP... soft key.
The Navigation Status pop-up window shown in Figure 4-4 is displayed.
NAVIGATION STATUS
1
Navigation Status Window
SL520/530/631 PLUS Chartplotter Displays
FIX
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