Insignia manual Using the 250DX

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ID+ On
Raw Sonar

USING THE 250DX

MENU FUNCTIONS

Fish ID. There are three selections available: Bottom Black View

OFF, ID+ ON, and ADJUST. The factory setting is ID+ ON. With Fish ID OFF, sonar returns are displayed as “raw” information.

There is no interpretation made by the unit. Selecting ID OFF also disables the fish alarm.

ID+ ON enables the 250DX 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 whether the fish is in the wide or narrow beam. The 250DX also displays the depth beneath the surface with the corresponding fish symbol.

Selecting Adjust and making incremental changes enhances the fishfinder’s ability to identify sonar returns as fish symbols.

Increasing the value to a number greater than zero shows more fish symbols on-screen. In this case smaller sonar returns will be depicted as fish symbols. This is useful for identifying many smaller sonar returns (such as baitfish) as fish symbols.

Decreasing the value to a number less than zero shows fewer fish symbols on-screen. In this case smaller sonar returns are disregarded. This is useful for eliminating many small sonar returns when seeking larger species of fish.

The 250DX remembers this selection even when the unit is powered off.

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Contents Operations Manual Thank YOU Table of Contents Parts Supplied Installation PreparationAccessories Installation OverviewDetermining How to Mount the Transducer Installation OverviewTrolling Motor Mounting Alternate Transducers and Mounting MethodsAlternate Transducers and Mounting Methods Portable MountingTransducer Exchange Beginning InstallationTransducer Exchange HOW Sonar Works Using the 250DXHOW Sonar Works Simulator Operation Feature MemorySimulator Operation What You See On-Screen What YOU see ON-SCREENDepth of the water changes, the range What YOU see on Screen Control Functions Control FunctionsUsing the 250DX Using the 250DX Menu Functions Menu FunctionsUsing the 250DX Depth Range Upper Zoom Limit To disable Zoom, press the Menu button until Fish symbols shown on-screen Using the 250DX Using the 250DX Using the 250DX Numeral Size. Two options are available Using the 250DX Using the Diagnostic Feature Advanced FeaturesUsing Diagnostic Maintenance MaintenanceMaintenance Nothing happens when I turn the unit on TroubleshootingTroubleshooting There is no bottom reading visible on the display There is no transducer detectedGet gaps in the reading at high speeds Unit comes on before I press POWER, and won’t turn offScreen begins to fade out. Images are not as sharp as normal My unit loses power at high speedsCustomer Support Customer SupportSpecifications TOP
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