Freeze Frame; Bottom Presentation - Humminbird 161 Operation Manual

Freeze Frame

Freeze Frame - Pressing any arrow on the 4-WAY Cursor Control key will freeze the
screen and a cursor 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. Freeze Frame is available in the Sonar and Sonar
Zoom Views.

Bottom Presentation

As the boat moves, the unit charts the changes in depth on the display to create a profile
of the Bottom Contour. The type of bottom can be determined from the return charted
on the display. A Hard Bottom such as compacted sediment or flat rock appears as a
thinner line across the display. A Soft Bottom such as mud or sand appears as a thicker
line across the display. Rocky Bottoms have a broken, random appearance.
Bottom Contour Profile with RTS® Window.
Temp/Speed Accessory is optional.
Hard Bottom
Soft Bottom
Rocky Bottom
The sonar returns from the bottom, structure and fish can be represented as either
Inverse (default), WhiteLine®, Structure ID®, or Bottom Black. See Sonar X-Press TM
Menu: Bottom View for details on how to set the bottom view.
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