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L-3 ELAC Nautik
• CURSOR W (4x, to mark Depth Mode)
• ENTER (1x, to mark the mode selected)
• CURSOR V or W (to make selection)
• ENTER (1x, to confirm selection)
• ESCAPE (2x, to leave the MENU)
NOTE: When the NAV-Defaults are selected within the ALARM MENU, the system
returns to the navigation mode, using the default values , i.e.:
• Channel Select = 1
• Sound Velocity = 1500 (m/s)
• Units = m
• Depth Mode = DBK
Manual Gain setting
In a noisy environment or if the bottom depth changes very rapidly it is useful to work with manual
gain instead of automatic gain.
The manual mode is selected as follows:
Select second menu (PARAMETER) by pressing ENTER, ENTER
Select in the PARAMETER menu Gain using the cursor, ENTER
With the cursor change Auto to Man., ENTER
With the GAIN keys now gain is adjustable.
With GAIN UP or DOWN gain can be set between 1 (minimum) and 15 (maximum)
Vary the gain value until the bottom is clearly indicated on the display. For differentiation the gain
value selected is shown inverse on the display during the use of the gain keys:
Indication with Auto:
Indication with Man.:
NOTE : During switch off the last gain value in use is stored. If the unit is switched on
again, Auto mode is selected. If Man. becomes selected as described, the
stored last gain value will be recalled.
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