Garmin Fishfinder 300 ML Installation Instructions Manual - page 8
Step 5: Test the Installation
NOTE: Although it is possible to perform some checks with the boat on a trailer, the boat should be in the water to properly test the installation.
Press and hold the POWER key until the Fishfinder 300C beeps. Use ROCKER and SELECT to highlight and select menu items on the
Fishfinder 300C.
The first time you turn your Fishfinder 300C on, you must configure a series of initial settings.
To initialize your Fishfinder 300C settings:
1.
Language—selecttheon-screenlanguage.
2.
Units—select
Statute (mh, ft, °F)
,
Metric (kh, m, °C)
,or
Nautical (kt, ft, °F)
.
3.
Color Scheme—select
White
or
Blue
asthebackgroundonsonarscreens.
4. Select
OK
toreturntotheHomescreen.
The Home screen appears after you select your configuration options.
NOTE: If the transducer is not detected, a “Transducer Disconnected, Sonar Turned Off” message appears.
The transducer must be in the water to work properly. You cannot get a depth or distance reading when the transducer is out of the water.
When you place your boat in the water, check for leaks around any screw holes that were added below the water line. Do not leave your boat in
the water for an extended period of time without checking for leaks.
To test the transom-mount transducer installation:
1.Begintestingtheinstallationataslowspeed.Ifthesonarappearstobeworkingproperly,graduallyincreaseboatspeedwhileobserving
sonaroperation.Ifthesonarsignalissuddenlylost,orthebottomreturnisseverelydegraded,notethespeedatwhichthisoccurs.
2. Returntheboattothespeedatwhichthesignalwaslost.Makemoderateturnsinbothdirectionstoseeifthesignalimproves.
3. Ifthesignalstrengthimproveswhileturning,adjustthetransducersothatitextendsanother1/8"(3mm)belowthetransomoftheboat.It
mighttakeseveraladjustmentstoeliminatethedegradation.
4.Ifthesignaldoesnotimprove,youmighthavetomovethetransducertoadifferentlocation.
NOTE: When adjusting the depth of the transducer, make the adjustments in small increments. Placing the transducer too deep can adversely affect
boat performance and put the transducer at greater risk of striking underwater objects.
For the latest free software updates (excluding map data) throughout the life of your
Garmin products, visit the Garmin Web site at
.
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