1. OPERATIONAL OVERVIEW
1-38
Depth and water temperature graphs
These graphs display the latest 30 minutes of respective data. The horizontal axis scale is
updated and plotted at intervals of 10 seconds. The vertical axis scale is adjusted automatically
for every 30 minutes of data. The unit of measurement may be chosen on the Initial sub menu in
the System menu.
Wind graph
WInd direction reference may be chosen (on the Initial sub menu) from True or Apparent.
Apparent wind
is the direction (in relation to ship’s bow) and speed of the wind as it appears to
those on board, relative to the speed and direction of the boat; combination of the true wind and
the wind caused by the boat's movement.
True wind
is the speed and direction (in relation to
ship’s bow) of the wind felt or measured when stationary.
1.34.2
Navigation data at the bottom of the screen
Navigation data may be displayed at the bottom of the screen.
Navigation data
To show navigation data, do the following:
1. Press the
MENU
key to open the menu.
2. Choose the Display menu and then press the
ENTER
key.
3. Choose Data Box and then press the
ENTER
key.
4. Choose Nav or All and then press the
ENTER
key. (Choose All to display Nav data and ARPA
and AIS target data.)
5. Press the
MENU
to close the menu.
OWN LAT: 34
°
56.123 E
SHIP LON: 135
°
34.567 E
SPEED 12.34 kt
CURSOR LAT: 34
°
56.123 E
LON: 135
°
34.567 E
TTG: 01:00
TEMP 12.3
°
C
DEPTH 56.7 M
WAY 0.095 NM
POINT 90.0
°
M
TTG: 00:20
Off
Nav
Target
All
