Position Screen; Plot Screens - Casio 1840 Getting Aquainted Manual

The non-standby modes take longer to produce subsequent
measurements, but shutdown of the watch's GPS circuit between
measurements conserves battery power. In these modes, the indicator
above GPS at the bottom of a GPS Data Screen does not flash and an
indicator appears above SAVE to indicate power save is enabled.
Quick Mode
The Quick Mode performs a GPS measurement when you press
updates the GPS Data Screen. After the first measurement, the watch's GPS
circuit remains in standby, which is indicated by the flashing indicator above
GPS at the bottom of the GPS Data Screen. Because of this, subsequent
measurements are produced more quickly. Continuous Quick Mode standby
uses battery power. To exit standby, press J while the Position Screen is on
the display to change to another measurement.
One-Shot Mode
The One-Shot Mode also performs GPS measurement when you press
updates the GPS Data Screen. In this mode, however, the watch's GPS circuit
is shut down between measurements. Because of this, it takes more time to
perform each measurement.
Continuous Mode
The Continuous Mode performs a GPS measurement every second starting
when you press and ending when you press
Screen is updated with each measurement. In the Continuous Mode, the
watch's GPS circuit remains in standby, which is indicated by the flashing
indicator above GPS at the bottom of the GPS Data Screen.
Auto Mode
The Auto Mode also performs a GPS measurement every minute starting from
when you press and ending when you press
Screen is updated with each measurement. Though the GPS circuit shuts
down between measurements in this mode, the indicator above GPS
continues to flash until you press
Important!
The indicator flashing above GPS at the bottom of a GPS Data Screen
indicates that the GPS circuit is activated, which consumes valuable battery
power. To prolong battery life, be sure to use the following operations to
turn off the GPS circuit when you are not using it.
Press to stop position measurement and turn off the GPS circuit. The
indicator above GPS stops flashing at this time.
To select a GPS measurement mode
While the Position Screen is on the display in the GPS Mode, press J to
cycle through the GPS measurement modes in the sequence shown below.
Press J.
Quick Mode
One-Shot Mode
Continuous Mode
Auto Mode

Position Screen

Latitude
Longitude

Plot Screens

The Plot Screens show your current location and your progress (tracks) from
one waypoint to another.
See "Track Memory" for information about tracks and how they are stored
in memory.
With the Plot Screens, the top (12 o'clock position) of the watch's display is
always north.
and
again. The GPS Data
again. The GPS Data
to stop measurement.
The Position Screen shows your current
position in terms of latitude and longitude.
Latitude is indicated as N (north) or S
(south), and longitude as E (east) or W
(west).
Plot Screen Formats
There are two Plot Screen formats: a Map Screen and a Waypoint Plot Screen.
Press J to toggle between screen formats.
Map Screen
The Map Screen shows tracks and your current position inside the grid cell
where your current position is located.
The Waypoint Plot Screen normally shows the two waypoints between
which your current position is located. You can also scroll to view other sets
of waypoints along your route.
and
When you change to the Map Screen, a Map Scale Screen first appears for
about two seconds, followed by the Map Screen.
Grid cell height
When you change to the Waypoint Plot Screen, the virtual width of the
screen first appears for about two seconds, followed by the Waypoint Plot
Screen.
Screen virtual
width
Waypoints
Note that you must define waypoints in watch memory before you can use the
Waypoint Plot Screen. See "Using Waypoints" for information about defining
and managing waypoints.
The message NO W.P (no waypoints) appears on the screen if there are no
waypoints defined in the WAY PT. (waypoint) List.
Using the Map Screen
Once you set up the Map Screen to match the gridlines on your paper map,
you can easily plot your position within a specific grid cell on the map. A
simple operation also lets you quickly determine which grid cell on the map is
currently shown on the Map Screen of the watch.
See "Maps and Gridlines" for information about the types of maps that are
compatible with the Map Screen.
See "Map Scale Settings" for other important information about the map
scale.
Important!
The Map Screen of this watch is designed for use with maps that indicate
latitude and longitude down to minutes. It will not work properly with maps
that indicated latitude and longitude in degrees only.
To set up the Map Screen to match the gridlines of your map
4. Use H and J to move the highlighting between the vertical and
horizontal ratio values, and L and K to change the highlighted value.
See "Map Scale Settings" for full details about how your settings affect the
appearance of the screen.
5. After everything is the way you want, press
with DST UNITS highlighted.
6. Press the MENU button to return to the Menu Screen.
Press J.
J
H
Waypoint Plot Screen
Grid cell width
J
J
Destination waypoint number
1. In any mode, press the MENU button to
display the Menu Screen.
2. Use L and K to move the highlighting
to SET UP and then press
the Set Up Menu.
3. Use L and K to move the highlighting
to MAP SCALE and then press
display the Map Scale Setting Screen.
The values on the Map Scale Setting
Screen are for specifying the vertical-to-
horizontal ratio (in minutes) of each grid
cell on the map you are using. 1:2, for
example, indicates that grid cells are
twice as wide as they are high.
to return to the Set Up Menu
1840-4
(W.P 1 = Waypoint 1)
to display
to