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
