Bottom View; Zoom Width (Sonar Zoom View Only); 83 Khz Sensitivity; 455 Khz Sensitivity (Advanced, With Optional-Purchase Quadrabeam Plus™ Transducer Only) - Humminbird 900 Series Installation And Operation Manual

represent bottom and structure on the display. Structure ID® represents
weak returns in blue and strong returns in red. WhiteLine® highlights the
strongest sonar returns in white resulting in a distinctive outline. This has
the benefit of clearly defining the bottom on the display. See Bottom
Presentation for more information.
To adjust the Bottom View:
1. Highlight Bottom View on the Sonar Main Menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the
Bottom View setting. (Structure ID, WhiteLine, Default = Structure ID)
Zoom Width allows you to control the width of the Zoomed Sonar (the left-
hand side of the screen).
To change the Zoom Width:
1. Highlight Zoom Width on the Sonar Main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the
width of the Zoomed Sonar.
Narrow)

Bottom View

Bottom View selects the method used to
Zoom Width
(Sonar Zoom View only)
(Narrow, Medium, Wide, Default =
Sensitivity changes the sensitivity of the 83 kHz beam. Increasing the
83 kHz
83 kHz Sensitivity will display additional weak returns and decreasing the 83
kHz Sensitivity will display fewer weak returns. The 83 kHz Sensitivity menu
choice is only available when User Mode is set to Advanced (see Setup
Menu Tab: User Mode).
To set the 83 kHz Sensitivity:
1. Make sure you are in Advanced User Mode, then highlight 83 kHz
Sensitivity on the Sonar main menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to set the 83 kHz
Sensitivity. (-10 to +10, Default = 0)
455 kHz Sensitivity adjusts the sensitivity of the 455 kHz beam. Increasing
the sensitivity will display additional weak returns and decreasing the
sensitivity will display fewer weak returns. A QuadraBeam PLUS™
transducer must be attached to the Fishing System. The 455 kHz Sensitivity
menu choice is available when Transducer Select is set to QuadraBeam (see
Sonar Menu Tab: Transducer Select) and User Mode is set to Advanced
(see Setup Menu Tab: User Mode).
89

83 kHz Sensitivity

(Advanced)
455 kHz Sensitivity
(Advanced, with optional purchase QuadraBeam
PLUS™ transducer)