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10-3
RANGE/SPEED UNIT
Selects the unit for range and speed; nm/kt
(default setting), km/ km/h, sm/ sm/h.
DEPTH UNIT
Selects unit of depth measurement among,
feet, fathoms, and meters. The default set-
ting is feet.
TEMP UNIT
Selects unit of water temperature measure-
ment between Celsius or Fahrenheit. The de-
fault setting is Fahrenheit.
LAT/LON DISPLAY
Displays the seconds of latitude and longi-
tude positions in hundredths, thousandths
(default setting) or ten thousandths.
TIME DISPLAY
Selects time display format for 12 hour or
24 hour (default setting).
WAYPOINT SW
Provides automatic or manual waypoint
switching when following a route. For further
details, see page 7-4. The default setting is
AUTO2.
COURSE VECTOR
You may extend a line from the own ship po-
sition to show ship’s course. The line can be
a vector (the length depends on the ship’s
speed.) or a line (course bar). The default set-
ting is LINE.
BEARING
A navigation device outputs both true and
magnetic bearings. A magnetic bearing is true
bearing plus (or minus) earth’s magnetic de-
viation. Thus the equation for finding mag-
netic bearing is;
true bearing ± x (magnetic variation)° = mag-
netic bearing
You can display your ship’s course and bear-
ing to waypoint in true or magnetic bearing,
and the default setting is magnetic.
MAG VARIATION
The magnetic variations for all areas of the
earth are preprogrammed into this unit. The
preprogrammed variation is accurate for most
instances, however you may wish to manu-
ally enter a variation.
1. Select MAG VARIATION, and press the
soft key EDIT to show the mag variation
window.
MAG VARIATION
▲
™AUTO
'
MANUAL 0.7
°
W
▼
Figure 10-5 Mag variation window
2. Select MANUAL.
3. Key in magnetic deviation value.
4. Press the soft key W<-->E to switch be-
tween East and West and vice versa, if
necessary.
5. Press the soft key ENTER or the [ENTER]
key to finish.
TD DISPLAY
Position may be shown in Loran C TDs (de-
fault setting), Decca TDs, or latitude and lon-
gitude. To display position in TDs select Loran
C or Decca here and choose TD at “POSI-
TION DISPLAY” below. You can select the
Loran C or Decca chain to use on the TD
SETUP menu. For details see “TD SETUP
menu” on page 10-6.
POSITION DISPLAY
Displays position in latitude and longitude
(default setting) or Loran C or Decca TDs.