Views and readouts, Sonar view – Humminbird ] 981 User Manual
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VIEWS AND READOUTS
All views have an Information Bar on the left side of the screen, consisting of readouts
that are stacked vertically, and that change from view to view. You can customize the
information displayed in individual readouts on many views, including suppressing a
particular readout so that nothing is displayed; the ability to customize readouts
depends on the view and whether you are navigating (see Setup Menu Tab, Select
Readouts for more information).
SONAR VIEW
Sonar View presents a historical log of sonar returns. The most recent sonar returns
are charted on the right side of the window; as new information is received, the older
information is moved across the display to the left. A scale with Upper and Lower
Depth Range readouts appears along the right edge of the Sonar View. The scale
indicates the distance from the surface of the water to a depth range sufficient to
show the bottom. Depth Range is automatically selected to keep the bottom visible on
the display, although you can adjust it manually as well (see Sonar X-Press™ Menu).
NOTE:If the Depth number is flashing, it means that the unit is having trouble locating the bottom.
This usually happens if the water is too deep, the transducer is out of the water, the boat is moving
too fast, or for any other reason that the unit can’t accurately receive continuous data.
Freeze Frame - Pressing any arrow on the 4-WAY Cursor Control key will freeze the screen
in the Sonar View and a cursor and cursor dialog box will be displayed on the screen. The
cursor can be positioned on the display using the 4-WAY Cursor Control key to determine
the depth of any sonar return. The RTS® Window continues to update in Freeze Frame. In
addition, see the effects of menu setting changes with Instant Image Update.
Pressing EXIT will exit Freeze Frame and the display will start to scroll.
Sonar View
Depth
Depth below Cursor
1
7
Triplog
Distance to Cursor
2
8
Temperature
Bearing to Cursor
3
9
Speed
RTS® Window
4
10
Cursor
Sonar Color Bar
5
11
Depth of Cursor
Lower Depth Range
6
12
1
2
3
4
6
9
5
7
8
10
11
12
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