83 Khz Sensitivity; (Advanced, With Quadrabeam Plus™ Transducer, Optional-Purchase For The 917) - Humminbird 917C Installation And Operation Manual

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 (included on the 957 and
optional-purchase on the 917). 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).

83 kHz Sensitivity

(Advanced)
455 kHz Sensitivity
(Advanced, with QuadraBeam PLUS™ transducer,
optional-purchase for the 917)
NOTE: The 455 kHz Sensitivity requires the purchase of the QuadraBeam PLUS™
transducer.
You can visit our website 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 Transducer and Advanced
Mode and that the QuadraBeam PLUS™ transducer is connected, then
highlight 455 kHz Sensitivity on the Sonar Main Menu.
2. Use the LEFT or RIGHT 4-WAY Cursor Control keys to change the
455 kHz Sensitivity. (-10 to +10, Default = 0)
83