Manual Humminbird 778c (page 72 of 110) (English)

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455 kHz Sensitivity

(Advanced: with QuadraBeam PLUS™ transducer)

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 option is available when Transducer Select is set to

QuadraBeam (see Sonar Menu Tab: Transducer Select) and User Mode is set

to Advanced (see Main Menu: User Mode).

NOTE: The 455 kHz Sensitivity requires the purchase of the QuadraBeam PLUS™

transducer. You can visit our web site at www.humminbird.com to order this

accessory online or contact our Customer Resource Center at 1-800-633-1468.

NOTE: 455 kHz Sensitivity is particularly useful for adjusting the sensitivity of the

455 kHz sonar returns in the Side Beam View. The 455 kHz sensitivity can be

adjusted without affecting the sensitivity of the 200 kHz returns shown in the

200 kHz sonar window.

To change the 455 kHz Sensitivity setting:

1. Make sure you have selected QuadraBeam PLUS™ Transducer [Quad

Beam] and Advanced Mode and that the QuadraBeam PLUS™

transducer is connected, then highlight 455 kHz Sensitivity on the

Sonar main menu.

2. Press the LEFT or RIGHT Cursor keys to change the

455 kHz Sensitivity. (-10 to +10, Default = 0)

Sonar Menu Tab

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Humminbird 778c Manual

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