La Crosse Technology A92239 Manual Del Usuario página 42

12.1 Compass Mode - Compass Directions and Bearing Directions
The Direction of an Object
● The direction of an object from a point can be specified in either compass directions or bearing directions.
● The Station includes both compass directions and bearing directions.
The Compass Directions
● In the station, only cardinal directions North (N), East (E), South (S) and West (W) are shown. Between the cardinal
directions, "---" will be shown to show the other compass directions. The compass directions are shown in the adjacent
table.
● For example, in the figure on the left, the compass direction of object B from point A is due East. The compass direction
of object C from point A is Southeast. The compass direction of object D from point A is Northwest.
12.2 Compass Mode - Compass Mode
Compass Mode
● In the Compass Mode, the top row of the display with 2 pointers shows the compass direction and the "COMP" indicator
will appear below the compass direction.
● The middle row on the right hand side of the display shows the bearing direction.
● The bottom row of the display shows the current time in hour, minute and second.
IDLE Mode
● If no key is pressed for about 3 minutes, the Station will go to the IDLE Mode automatically. Press [S/S] or [R] to activate
the compass again.
Distortion
● If distortion is detected, flashing bearing direction will appear.
● Please refer to the coming section "Calibrating the Compass" to restore the compass to normal operation when
distortion is detected.
Note:
In order to get accurate reading, the station shall be placed horizontally while measuring.
12.3 Compass Mode - Magnetic Declination
What is Magnetic Declination
● The Magnetic North Pole is slightly different from the True North Pole.
● The Weather Station with Compass, like most magnetic compass, points to the Magnetic North Pole.
● The angular difference between Magnetic North Pole and True North Pole is called magnetic declination. Its
magnitude (degrees and minutes) and direction (easterly and westerly) depend on where you are in the world.
● For a serious compass user who intends to perform an accurate navigation, the compass must be adjusted for
magnetic declination.
● The Station also includes a compensation setting for Magnetic Declination. Check the coming section "Calibrating
the compass - Magnetic Declination Mode" for more details.
Magnetic Declination Information
● Most topographic maps include a small arrow which shows the magnetic north pole and magnetic declination
information.
● For the benefit of the user, this manual includes the magnetic declinations for some major cities. Check the coming
section ,Magnetic Declination at Major Cities' for more details.
● For those cities, their names are not included on the list, please check the update data at Wikipedia on the internet
and type in "Magnetic declination "for more information.
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