Casio 1840 Getting Aquainted Manual page 5

GPS Measurement with the Map Screen
After successful measurement is achieved, your current position appears on
the Map Screen.
See "Taking a GPS Measurement" for full details about GPS
measurements.
Any waypoints ( ) located in the same grid cell as your current location
also appear on the display.
To determine your current grid cell
1. Set up the Map Screen to match the
2. While your position is plotted on the Map
3. Press H to return to the Map Screen.
When you press H, the Map Scale Screen appears for about two seconds,
followed by the Map Screen.
Using the Map Screen for Navigation
Let's say you want to use the Map Screen to determine your position on a
paper map. Let us assume that your map is marked with lines creating grid
cells that are twice as wide as they are high.
1.0'
1.0'
1.0'
1.0'
1.0'
1.0'
2.0'
Use the following procedure to set up the watch to match the map and to plot
your position on the map.
1. Use the procedure under "To set up the Map Screen to match the gridlines
of your map" to set the map scale.
If you want waypoints to appear on the Map Screen, use the procedure
under "Using Waypoints" to define them.
2. Use the GPS Auto or Continuous mode to measure your position and plot
it on the screen as you travel towards your destination.
3. Use the procedure under "To determine your current grid cell" to locate the
currently displayed grid cell on your map.
4. Find the applicable grid cell on your map and you should be able to determine
your route by tracing the tracks that appear on the display of the watch.
The example below shows the grid cell whose upper left corner is located
at 35 46' 00'' North latitude and 139 18' 00'' East longitude.
Map
139 14'
35 48'
47'
46'
45'
44'
43'
16' 18' 20'
Watch display
Current position
(flashing)
Waypoint
gridlines of the map you are using.
See "To set up the Map Screen to match
the gridlines of your map".
Screen, press H to display the Corner
Screen.
This screen shows the latitude and
longitude of the upper left corner of the
grid cell on your map where your current
position is located.
See "Maps and Gridlines" for detailed
information about grid cells.
2.0' 2.0' 2.0'
Your route on the map
Using the Waypoint Plot Screen
The Waypoint Plot Screen shows preset waypoints in sets of two each, a start
waypoint and a destination waypoint , along with track markers that indicate
your progress between the two points. The distance between start and
destination waypoints is scaled in order to allow both of them to fit on the
screen, so the virtual width of the screen is adjusted automatically in
accordance with the actual distance between the two displayed waypoints.
Text at the bottom of the screen indicates the name of the next destination
waypoint, and you can specify kilometers, miles, or nautical miles as the unit
of measurement for the virtual width. When you reach a destination waypoint,
a simple operation changes it to your new start waypoint and displays the next
destination waypoint, automatically scaling the distance between them so they
both fit on the screen.
GPS measurement with the Waypoint Plot Screen
After successful measurement is achieved, your current position appears on
the Waypoint Plot Screen, along with your current start waypoint and
destination waypoint.
Tracks indicating
your movement
Waypoint
Each waypoint is indicated on the display by a flag, which flashes
alternately with the applicable waypoint number.
See "Taking a GPS Measurement" for full details about GPS
measurements.
To display the next set of waypoints
1. While the Waypoint Plot Screen is on the
2. The virtual width of the screen for the
L
Graphical Navigation Screens
The Graphical Navigation Screen shows the distance and direction from your
current position to a destination waypoint. You can specify kilometers, miles,
or nautical miles as the unit of measurement for the distance.
See "To set the distance unit" for information about how to set the units of
measurement.
Important!
The Graphical Navigation Screen will not work properly unless you have
defined waypoints already. See "Using Waypoints" for information about
defining and managing waypoints.
Graphical Navigation Screen Formats
There are two Graphical Navigation Screen formats: a Fixed Direction Screen
and a Current Direction Screen.
Fixed Direction Screen
The Graphical Navigation Screen format is normally the Fixed Direction
Screen. It automatically switches to the Current Direction Screen only while
the watch is in the Continuous Mode and you are moving at a speed of
8kph or faster. The Current Direction Screen is refreshed with each new
successful position measurement.
Both screens show the name of your destination waypoint, a pointer to the
next destination waypoint, and the distance to the next destination
waypoint.
With the Fixed Direction Screen, the top (12 o'clock position) of the display
is always north, while with the Current Direction Screen the top of the
display is always your current direction of travel.
1840-5
Waypoint
Current position
(flashing)
Destination waypoint number
(W.P 1 = Waypoint 1)
display, press H to display the next set
of waypoints.
new start and destination waypoints
appears for about two seconds, followed
by the Waypoint Plot Screen.
You can use the above procedure to view
upcoming waypoints to determine
changes in direction. Remember that the
top of the display is always north.
Current Direction Screen