Understanding The Temp Log Screen; Setting Up Sonar - Garmin GPSMAP 400 Owner's Manual

Understanding the Temp Log Screen

If you are using a temperature-capable transducer, the Temp Log
screen keeps a graphic log of temperature readings over time. The
current temperature and depth are shown in the top-left corner.
From the Home screen, select
Temp
and
depth
Time
elapsed
The temperature appears along the right side and the time
elapsed appears along the bottom. The graph scrolls to the left as
information is received.
GPSMAP 400 Series Owner's Manual
®
Sonar Temp Log.
>
Temp
range

Setting Up Sonar

Use the Sonar Setup screen to define and adjust settings universal to
all sonar screens.
From the Home screen, select
Color Scheme—choose white or blue. This affects the background
on all sonar screens, but does not change the Temp Log screen.
Fish Symbols—set how the sonar interprets suspended targets.
The unit does not interpret the sonar return data
(default).
Suspended targets appear as symbols. Background sonar
information appears, making the distinction between fish
and structure easier.
Suspended targets appear as symbols with background
information shown. The target depth of each symbol is also
indicated.
Suspended targets appear as symbols. No background
information appears.
Suspended targets appear as symbols with no background
information shown. The target depth of each symbol is
indicated.
u
SInG
Sonar Sonar Setup.
>
S
onar
3