Upper Zoom Limit
Lower Zoom Limit

USING THE 425SX

MENU FUNCTIONS

In “Manual” Zoom, the Zoom

range does not move as the terrain changes. To operate

Zoom, press MENU repeatedly until the Zoom menu is on- screen. Three options are

available: “Off” (Factory Setting), “Auto” (Automatic bottom

tracking Zoom), and “Manual” (User controlled Zoom range).

Press the DOWN ARROW once

to highlight Auto or twice to highlight Manual. If Manual is

selected a submenu will appear

allowing manual zoom range adjustment. When the menu disappears, full range information is displayed on the right as always. The square box indicates the Zoom range. In Auto Zoom, the box will move vertically to remain in the general area of the bottom return. The left side of the screen is a magnified view of the information seen inside the Zoom range box. The upper and lower depth limits of the Zoom range are shown on the right side of the Zoom view.

Note: It is not possible to use Zoom in conjunction with the Large Digital View.

To disable Zoom, press the MENU button until the Zoom menu is on-screen. Use the UP ARROW to highlight Off, and let the menu time out.

When the unit is powered off, the Zoom menu returns to Zoom Off.

Depth Alarm. The 425SX contains an audible alarm to warn you of shallow water depths. The alarm is adjustable to depths of .6m (2') to 30m (99'). When the alarm is enabled, an audible alarm sounds if the water beneath the boat is equal to or less than the selected alarm depth. The alarm sounds continuously for about five seconds, and

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Humminbird 425 SX manual Using the 425SX
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425 SX specifications

The Humminbird 425 SX is a sonar fish finder that combines advanced technology and user-friendly features to enhance the fishing experience. This device is ideal for anglers seeking reliable performance without compromising quality or functionality. With its robust design and cutting-edge features, the 425 SX has become a favorite among both novice and experienced fishermen.

One of the main features of the Humminbird 425 SX is its DualBeam Plus sonar technology. This innovative system allows users to switch between two sonar beams: a wider beam for searching large areas and a narrower beam for a more detailed view of the underwater structure and fish. With a depth capability of up to 600 feet, anglers can easily track fish and structures below the surface, ensuring no opportunities are missed.

The 425 SX is equipped with a high-resolution display, making it easier to read data in various lighting conditions. This 4.5-inch LCD screen provides clear and vibrant visuals, allowing users to interpret information quickly and accurately. The display also features a customizable color palette, letting anglers tailor the screen to their preferences for maximum visibility.

Another noteworthy characteristic of the Humminbird 425 SX is its fish identification feature. The device can recognize and differentiate fish species based on their size and depth, giving users valuable insights into what they might catch. This feature not only enhances the fishing experience but also helps in making informed decisions on bait and tackle.

The device also supports a range of advanced features, such as a built-in GPS system that allows users to mark waypoints for their favorite fishing spots, track their movements on the water, and navigate safely. The GPS functionality ensures that anglers can easily return to productive fishing locations, making the most of their time on the water.

Moreover, the Humminbird 425 SX’s durable construction ensures it can withstand the rigors of both freshwater and saltwater environments. Its waterproof design provides added peace of mind, protecting the device from potential damage caused by splashes or rain.

In conclusion, the Humminbird 425 SX is a versatile and user-friendly fish finder that offers invaluable features for anglers of all skill levels. With its DualBeam Plus sonar technology, high-resolution display, fish identification capabilities, built-in GPS, and durable design, this device proves to be an essential tool for anyone looking to enhance their fishing success. Whether you're out for a casual day on the water or targeting specific species, the Humminbird 425 SX will help you make the most of your fishing adventures.
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