Raymarine LIGHTHOUSE 4, Руководство по эксплуатации

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3. Select [Calibrate] from the pop-over menu..
4. Select the transducer type (either [Depth] , [Wind] or [Speed] ).
Instrument depth calibration
Calibrate your instrument depth transducer as follows.
Select either:
• [Below keel] — The depth reading will be decreased from the transducer’s
default reading by the offset value you specify. The offset should be the
distance between the transducer and the bottom of the keel.
• [Below waterline] — The depth reading will be increased from the
transducer’s default reading by the offset value you specify. The offset
should be the distance between the waterline and the transducer.
• [Below transducer] — This is the transducer’s default reading no offset
is required.
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