Humminbird 425 SX manual Bottom Black View ID+ On Raw Sonar

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USING THE 425SX

MENU FUNCTIONS

When the voltage drops below your selected voltage, an audible alarm will sound, and a battery alarm icon will be

displayed on screen with current voltage level.

Bottom Black. There are two selections available: Off and On. The factory setting is

Off. With this setting, the 425SX displays the bottom using 4 level grayscale. This allows

you to determine the texture

and relative hardness of the bottom. Selecting Bottom

Black “ON” causes the unit to blacken in the display below

the bottom. This gives the user

easiest recognition of the bottom location, even from a

great distance.

The 425SX remembers the Bottom Black setting when powered off.

Fish ID. There are three selections available: Off, ID+ ON, and Adjust. The factory setting is ID+ OFF. With Fish ID Off, sonar returns are displayed as “raw” information. There is no interpretation made by the unit. Selecting ID ON also enables the fish alarm.

Bottom Black View

ID+ On Raw Sonar

ID+ On enables the 425SX to interpret the raw sonar data and, using a variety of techniques, depict appropriate target returns as one of three different size fish symbols. Further identification shows which beam the fish is detected in. The 425SX also displays the depth beneath the surface with the corresponding fish symbol.

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Contents Operations Manual Thank YOU Table of Contents Accessories Installation PreparationInstallation Overview Parts SuppliedDetermining How to Mount Transducer Installation OverviewAlternate Transducers and Mounting Methods Alternate Transducers and Mounting MethodsPortable Mounting Trolling Motor MountingBeginning Installation Beginning InstallationHOW Sonar Works Using the 425SXHOW Sonar Works Simulator OperationSimulator Operation Feature MemoryWhat You See On-Screen Figure a What YOU see ON-SCREENSurface Clutter Rocky Bottom Hard Bottom Soft Bottom What YOU see on Screen Second Returns. When aID+ Fish Depth Control Functions Control FunctionsLarge Digit View To bring up the last menu used Keys. If no adjustment is made in the allottedAbbreviated Menu. The Arrow buttons often can be Menu Functions Menu FunctionsHigh Sensitivity Sensitivity at Low Sensitivity Depth Range Surface so any area of water between the surface Using the 425SX Using the 425SX Calculations Are Input voltage fromFor Tracking your On aAlarm menu under options, you will note that Bottom Black View ID+ On Raw Sonar Using the 425SX Using Diagnostic Advanced FeaturesDepth offset is remembered after power is disconnected Using the Diagnostic FeatureAdvanced Features Maintenance MAINTENANCE/TROUBLESHOOTINGTroubleshooting Nothing happens when I turn the unit on TroubleshootingThere is no transducer detected There is no bottom reading visible on the displayGet gaps in the reading at high speeds Unit comes on before I press POWER, and won’t turn offFurther information on Humminbird products can be found at My unit loses power at high speedsSpecifications Page Use this template with transducer mounting bracket TOP

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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