GME GP450XB - Manual (Page 18)

PAGE 18 INSTRUCTION MANUAL GP450X
4 . The from field is highlighted . Press the ENt key .
5 . Use the Cursor keypad to select the first Waypoint from the
Waypoint list . Press the ENt key when done .
6 . Highlight the to field and press the ENt key .
7 . Use the Cursor keypad to select the second Waypoint from
the Waypoint list . Press the ENt key when done .
8 . Highlight the sPd field and press the ENt key .
9 . Choose auto or maN (Manual) and press the ENt key .
- auto uses your vessel’s average speed .
- maN uses a speed that you choose .
10 . If auto was selected the ttG, Eta, Range and BrG are
automatically displayed at the bottom of the screen . These
values are calculated using your vessel’s average speed .
11 . If maN was selected a speed field appears .
12 . Press the ENt key to access the sPEEd field . Use the
Cursor keypad to select the required speed value . Press the
ENt key when done .
13 . The ttG, Eta, Range and BrG are displayed at the bottom
of the screen . These values are calculated using the speed
value you entered above .
14 . Press the mENu key twice to return to the
navigation screen .
range, ttG and Eta of a route
This function calculates the Range, TTG and ETA between the
first and last Waypoints of a route .
1 . From the main menu select calculatE and press the ENt
key . The calculation window is displayed
2 . The modE field is highlighted by default . Press the ENt key
to select .
3 . The Mode Option menu appears . Choose routE and press
the ENt key .
4 . Highlight the Route Number (default is 01) and press the
ENt key .
5 . Use the Cursor keypad to select the required Route number
then press the ENt key . The names of the Start and
Destination Waypoints of the selected route are displayed
along with the number of Waypoints in the route .
6 . Highlight the sPd field and press the ENt key .
7 . Choose auto or maN (Manual) and press the ENt key .
- auto uses your vessel’s average speed .
- maN uses a speed that you choose .
8 . If auto was selected the ttG, Eta and Range are
automatically displayed at the bottom of the screen . These
values are calculated using your vessel’s average speed .
9 . If maN was selected a speed field appears .
10 . Press the ENt key to access the sPEEd field . Use the
Cursor keypad to select the required speed value . Press the
ENt key when done .
11 . The ttG, Eta and Range are displayed at the bottom of the
screen . These values are calculated using the speed value
you entered above .
12 . Press the mENu key twice to return to the
navigation screen .
maIN mENu - coNfIGurING
your GP450X
GPs sEtuP
The GPS Setup menu smoothes position and course, averages
speed, applies position offsets and deactivates unhealthy
satellites .
Position smoothing
If the GPS satellite signal condition becomes temporarily
unfavourable, the accuracy of the GPS position can be affected
to the point where your position on the plotter may appear to
move around even though your vessel is not moving . This effect
can be reduced by smoothing the raw GPS measurements so
that their effect on your navigation is minimised . The setting
range is from 0 to 999 seconds . The higher settings provide
more smoothing but will slow the time that the unit responds
to valid changes in position, especially at higher speeds . The
default setting is 0 seconds . Increase this setting if the GPS
position fix is changing greatly when you are not moving .
speed and course smoothing
As with your position, your vessel’s speed and course is directly
measured using the GPS satellite signals . This means the raw
velocity data will be affected by unfavourable satellite signal
Estimated Time of Arrival
Time to Go
Range
Bearing
Estimated Time of Arrival
Time to Go
Range
Start and
Destination
Waypoints
No of
Waypoints
in the Route