4. Operation 19
Setting Auto Gain
◎The setting method of sensitivity is selected.
・ Make GAIN a yellow display, press or the [ENT] key, and select it from the following, set content.
Set content ： AUTO/MANUAL
AUTO ：This equipment automatically sets sensitivity. At this time, STC becomes “LONG"
regardless of the setting of “INITIAL>STC" of the menu.
(Refer to 4.5 Initial Setting.)
MANUAL ：Set it manually with the [GAIN + -] key to the operation panel.
(Refer to 4.1 Basic Operations.)
・When it is “AUTO", it starts from sensitivity 10 within the range of sensitivity 10～20.
・ Select the method by and press the [ENT] key.
Setting Auto Range
◎The setting method of range is selected.
・Make RANGE a yellow display, press or the [ENT] key, and select it from the following, set content.
Set content ： AUTO/MANUAL
AUTO ：Range changes automatically like sea bottom's being always displayed at 3/5
positions of the lower side of the range scale.
MANUAL ：Set it manually with the [RANGE + -] key to the operation panel.
(Refer to 4.1 Basic Operations.)
・When it is “AUTO", it starts from 10m.
・ Select the method by and press the [ENT] key.
Setting FWD/AFT Draft
◎ When using dual frequency mode, draft value is adjustable forward side and after side of the vessel.
・ Make FWD/AFT DRAFT a yellow display, press or the [ENT] key, and the numerical value (initial
value 0.0) is displayed.
・The numerical value becomes large when key is pressed, and when key is pressed, the
numerical value becomes small.
・ When the setting of the distance finish, press the [ENT] key.
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