Gps Set Up; Fix Mode - Raymarine Raynav 300 GPS Plotter Owner's Handbook Manual

4-12

4.5 GPS Set Up

The GPS set up page provides information for the status of the tracked
navigation satellites plus HDOP and satellite Fix Status. It also provides
the ability to set up a Coastal GPS by manually retuning it to a different
differential beacon.
➤
To select GPS Set Up:
1. Press the GPS SET UP soft key to display the GPS Navigation Status
SAT SIGNAL STATUS
15
09
08
10
20
17

FIX MODE

GPS D
The GPS Navigation Status screen provides, for each tracked satellite,
the satellite number, a graphical signal strength bar and its current usage
status. Data for up to 12 satellites are shown.
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 Mode
Fix Mode provides selection of the method used to acquire a position fix.
screen with associated soft keys as shown in Figure 4-2:
GPS STATUS
LOCKED
IN USE
IN USE
LOCKED
LOCKED
LOCKED
HDOP
1.0
D-GPS
SD SET UP
Figure 4-2: GPS Status Screen
• 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.
SAT SIGNAL STATUS
23 LOCKED
18 IN USE
26 IN USE
12 LOCKED
14 LOCKED
03 LOCKED
FIX STATUS
D-FIX
RESTART
GPS
Raynav 300 GPS Plotter
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