455 Khz Sensitivity; (Advanced: With Quadrabeam Plus™ Transducer) - Humminbird 788c Operation Manual

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

455 kHz Sensitivity

(Advanced: with QuadraBeam PLUS™ transducer)
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