Humminbird 4-id 用户手册

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USING THE LCR 
OPERATIONAL INSTRUCTIONS 
 
4. 
Automatic or Manual Mode 
 
Automatic Mode- Each time the unit is turned on, the automatic feature is on. In the 
automatic mode the sensitivity is adjusted automatically to give a good return and the 
correct depth range is selected. The word Auto will appear in the lower left corner of the 
display any time the unit is in the automatic mode. The sensitivity bar at the bottom of 
the screen will increase or decrease automatically in deciding the amount of sensitivity 
being used. In deeper water this bar will increase indicating more sensitivity. In shallow 
water the sensitivity needed to achieve a good return will be less. Also, in the automatic 
mode, the unit will black out the display beneath the bottom line. 
 
Manual Mode- There are two 
ways of putting the LCR in the 
manual mode: (1) depress the 
Auto "On/Off" button or (2) 
depress either sensitivity 
decrease (-) or increase (+) 
button You will notice that the 
word Auto in the lower left corner 
of the display has gone off. The 
operator can control the amount 
of sensitivity by depressing the 
(+) or (-) button. There are 15 
sensitivity settings. When the (+) 
or (-) button is pressed once the 
sensitivity setting will change by 
one division. If the (+) or (-) 
button is held down the setting 
will move up or down as long as 
the button is held down. When 
the maximum or minimum setting 
is achieved, the unit will make a 
“Chirping" sound indicating a 
limit has been reached. 
 
To once again activate the 
automatic mode, depress the 
auto on/off switch. 
 
In the manual mode the depth range does not change automatically. The digital 
bottom depth is not displayed. The ID feature is on.