Do you have a question about the Humminbird 748 3D and is the answer not in the manual?
Waterproof Rating | IPX7 |
---|---|
Display Size | 5 inches |
Sonar Coverage | 90 degrees |
Target Separation | 2.5 inches |
Power Output | 500 Watts (RMS) |
Display Resolution | 480 x 480 pixels |
Sonar Type | Dual Beam |
Beam Angle | 20 / 60 degrees |
Sonar Frequency | 455 kHz (3D Sonar) |
Key readouts like Depth, Temp, Bottom Contour, Speed, and Timer.
Key readouts like Depth, Speed, Temp, Timer, Distance, and Second Return.
Displays depth and intensity of sonar returns in real-time.
How bottom types are charted and represented on screen.
Using VIEW/EXIT keys and hiding/showing views.
Specific elements and information shown in the 3D view.
Specific elements and information shown in the 2D view, including Freeze Frame.
How to use zoom levels and view different range perspectives.
Identifies and explains the purpose of each button on the unit.
Explains the structure of Start-Up, X-Press, and Main Menus.
Accessing and using tabs like Alarms, Sonar, Setup, Views.
How user mode affects menu options and functionality.
Setting up audible and visual alarms for various conditions.
Adjusting sonar display and performance options.
Configuring units, language, defaults, and display formats.
Problems with unit power and transducer detection.
Overview of Temperature/Speed, GPS, Wireless Sonar, PC Connect.
Depth, power, frequency, IPX rating, and other technical data.
Definitions for common sonar terms like Beam, Bottom Contour, Cavitation.
Ways to contact customer support via phone, email, or mail.