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2-3
KEY FUNCTION/OPERATION REMARKS
!2
!3
!4
!5
!6
!7
!8
Enables manual bottom acquisition in ground tracking mode.
PREPARATION
1. In MENU 2, set “REF DEPTH” to “OFF.”
2. Select ground tracking mode.
MANUAL BOTTOM ACQUISITION
3. Press and hold key until LED lamp on the left of the key
lights.
(Mode display should change from “GT” to “MAN”.)
4. Turn knob to place manual acquisition cursor ( ) on
the bottom echo in the echo level display.
5. Press key again when bottom echo is acquired.
See page 4-11.
See page 4-10.
See page 4-1.
NOTE: If “BTM TIDE TRK” is set to “ON” in MENU 3, the depth of
layer 3 is automatically adjusted to near-bottom depth.
(“BTM” appears instead of depth value.)
Calls ALARM menu to set alarm conditions for various items.
¡Tide speed/direction
¡Ship speed/bearing
MANUAL
TRACK
MANUAL
TRACK
MANUAL
TRACK
LYR
1
LYR
1
LYR
2
LYR
3
LYR
2
LYR
3
Selects tide measuring depth for the layer.
Color of depth
appears in value
green.
Press any key to
store the depth.
Set desired depth.
ALARM
Calls RANGE menu to set range scales for various items.
¡Vector speed range
¡Echo level depth range
Calls basic MENU for various fundamental settings.
(Sub-menus, MENU 1 thru MENU 4, are available.)
¡Sets value or specifies mode option for a selected item in menu
window. (Related to keys !2 to !6.)
¡Used to set ship’s heading manually, when external heading data
is not available.
¡Selects an item in a menu window.
(Related to keys !4 to !6)
¡Adjusts radius of range cursor (variable range marker) on the
vector display. Distance to the ring appears at the upper-left part
of the vector display.
RANGE
MENU
¡Tide dif. speed/direction
¡Trip time/distance
¡Course plot depth range
¡Echo strength gradation range