Detailed instructions for use are in the User's Guide.
[. . . ] 778c Operations Manual
531685-1_C
Thank You!
Thank you for choosing Humminbird®, America's #1 name in fishfinders. Humminbird® has built its reputation by designing and manufacturing top-quality, thoroughly reliable marine equipment. Your Humminbird® is designed for trouble-free use in even the harshest marine environment. In the unlikely event that your Humminbird® does require repairs, we offer an exclusive Service Policy - free of charge during the first year after purchase, and available at a reasonable rate after the one-year period. [. . . ] See Main Menu: User Mode for details.
Alarms Menu
Alarms Menu Tab
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Depth Alarm
Depth Alarm sounds when the depth becomes equal to or less than the menu setting. Press the LEFT or RIGHT Cursor keys to change the Depth Alarm setting. (OFF, 1 to 100 feet, or 0. 5 to 30 meters [International Models only], Default = OFF)
Fish ID Alarm
Fish ID Alarm sounds when the Fishing System detects fish that correspond to the alarm setting. Fish ID Alarm will only sound if Fish ID+TM is on.
For example, if you've set the Fish ID Alarm to sound for Large fish only, the Fish ID alarm will sound when a large-sized fish is detected.
To change the Fish ID Alarm setting: 1. Press the LEFT or RIGHT Cursor keys to change the Fish ID Alarm setting. (Off, All, Large/Medium, Large, Default = Off)
Off All Large/Medium Large
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Alarms Menu Tab
Low Battery Alarm
Low Battery Alarm sounds when the input battery voltage is equal to or less than the menu setting. The battery alarm will only sound for the battery that is connected to the Fishing System. The Low Battery Alarm should be set to warn you when the battery voltage drops below the safety margin that you have determined.
For instance, if you are running a trolling motor (battery operated), you would want to set the Low Battery Alarm to sound before the battery voltage drops too low for it to be used to start your main, gasoline-powered engine.
To change the Low Battery Alarm setting: 1. Press the LEFT or RIGHT Cursor keys to change the Low Battery Alarm setting. Alarm sounds when the water temperature from the Paddlewheel/Temperature Probe detected by the Fishing System reaches the Aux. Alarm setting, which is either set in degrees Fahrenheit or Celsius [International Models only].
For example, if the Aux. Alarm is set to 58 degrees Fahrenheit, and the water temperature falls from 60 degrees to 58 degrees, the Aux. Similarly, if the water temperature rises from 56 degrees to 58 degrees, the Aux. (Off, 33-120 [Fahrenheit], 0-50 [Celsius], Default = Off)
Alarms Menu Tab
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Temp. Alarm sounds when the water temperature detected by the Fishing System reaches the Temp. Alarm setting, which is either set in degrees Fahrenheit or Celsius [International Models only].
For example, if the Temp. Alarm is set to 58 degrees Fahrenheit, and the water temperature falls from 60 degrees to 58 degrees, the Temp. Similarly, if the water temperature rises from 56 degrees to 58 degrees, the Temp. (Off, 33-120 [Fahrenheit], 0-50 [Celsius], Default = Off)
Alarm Tone
Alarm Tone selects the pitch of the alarm sound. A brief tone will be produced as you adjust the Alarm Tone so that you can select the tone that you can hear best. (High, Medium, Low, Default = Medium)
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Alarms Menu Tab
Sonar Menu Tab
Press the MENU key twice to access the Main Menu and then press the RIGHT Cursor key until the Sonar tab is selected.
NOTE: Menu options can be expanded or simplified by setting the User Mode to Advanced or Normal. NOTE: Transducer selection also influences menu options (see Sonar Menu Tab: Transducer Select).
Sonar Menu
Sonar Menu Tab
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Beam Select
Beam Select sets which sonar returns from the transducer will be displayed on the screen. [. . . ] Additionally, the receiver offers a wide "dynamic range" which provides the ability to receive very strong signals alternating with very weak signals, without the strong signal overwhelming the weak signal. TripLog: TripLog is a Humminbird® feature that provides an on-screen counter for Elapsed Time, Average Speed and Total Distance traveled, and requires a speed input to activate the feature. TripLog appears on the Big Digits View, and can be reset to zero through the TripLog menu. TrueArch®: TrueArch® is a Humminbird® feature that provides true fish arches, not artificial arches or symbols. [. . . ]