NorthStar Navigation 435, 438 Stationary boat, Fish detection and display Where to find fish

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Stationary boat

1 minute ago

Now

Time

When a boat is stationary, all bottom echoes will come from the same small area of bottom. This will produce a flat bottom trace on the screen.

The appearance of the Sonar and Zoom screens can be changed to suit individual preferences.

Note: Times indicated are for illustration only.

4-2 Fish detection and display

Where to find fish

Underwater features like reefs, wrecks and rocky outcrops attract fish. Use the sonar to find these features, then look for fish by passing over the feature slowly several times using the Zoom display (see section 5-2 Sonar Zoom display). If there is a current, the fish will often be found downstream of the feature.

When fishing with the Explorer 435 and Explorer 438 with the Fish symbols Off, a weak fuzzy band may appear between the bottom trace and surface. This might indicate a thermocline - a rapid change in water temperature, such as the edge of a warm or cold current. The temperature difference can form a barrier which the fish may not swim through. In fresh water, fish often collect around a thermocline.

Fish symbols

The fish symbol can be customized or switched off altogether so that the echoes are not converted to fish symbols on the display. See section 3-2 Setup > Sonar. The differences between Fish symbol On and Off are:

Fish symbols On

Using Northstar’s SBN sonar technology the fishfinder analyses all echoes and eliminates most false signals and clutter so that remaining targets are most likely fish. Depending on the strength of

the remaining echoes, they are displayed as either small, medium or large fish symbols

-with or without depth. While the SBN processing is very sophisticated it is not

foolproof - there will be times when the fishfinder will not be able to differentiate between large air bubbles, rubbish containing air, fishing floats etc. and fish.

The following picture shows the Sonar display with the Fish symbol: On + depth:

Fish symbol Off

For experienced users this always provides the best information as every echo is displayed, whether it is surface clutter, a thermocline or a fish.

The picture in section 4-1 Interpreting the display, shows the Sonar display with the Fish symbols Off. The fish appear as arches.

Northstar Explorer 435/438 Installation and Operation Manual

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Contents Explorer 435/438 Page Result in property damage Follow this symbol to avoidpossible injury or deathNot avoided, could result in death or serious injury Not avoided, could result in minor or moderate injuryContents Appendix a Specifications Appendix B Troubleshooting Benefits of the Explorer 435 and Explorer IntroductionTransducer attached to the hull Display unit How the Explorer 435 and Explorer 438 workKey Operation Power On / Auto PowerBasic Operation Key NamesDisplay Adjustment Power OffSimulate Mode Gain AdjustmentSetup menu and options Setting up the Explorer 435 and ExplorerFactory reset Setup SystemAuto power off Snooze ModeColor bar Fish symbolsSetup Fuel Explorer 438 only PaletteSet remaining Setup DataData setup Tank fullReset total dist Explorer 438 only Setup LogsSetup Alarms Reset trip dist Explorer 438 onlyDepth Setup UnitsTemperature Setup CalibrateInterpreting the display Using the Explorer 435 and ExplorerUse the or cursor keys to adjust the value Depth of the water and the scroll speed setting015 Bottom types Strength of echoesFrequency and cone width DepthMoving boat ShadowsExample of shadows Sonar display of same area Fish is visible on the displayStationary boat Fish detection and display Where to find fishFish symbols On Fish symbol OffChanging between Auto and Manual Adjusting Gain settingsFish arches GainDisplays Sonar Zoom display Sonar displaySonar Bottom display Fish recognition Sonar A-Scope displayFuel display Explorer 438 only What comes with this product? Installation and MaintenanceOptions and Accessories Data displayBracket Mounting Wiring OptionsBasic wiring Flush MountingSystems of several instruments Fuel kit wiring Explorer 438 onlyAuto power option Through hull transducersCleaning and maintenance Appendix a SpecificationsExplorer 435 Appendix B TroubleshootingBottom is displayed too far up the screen Bottom is not displayedThere is no reading for fuel economy Fuel used or remaining seem inaccuratePage Americas Europe

435, 438 specifications

NorthStar Navigation 438,435 is a cutting-edge navigation solution designed to enhance maritime and aerial operations with advanced technology and user-friendly features. This state-of-the-art equipment focuses on delivering precision, reliability, and efficiency, making it an essential tool for professionals in various fields including marine transportation, aviation, and logistics.

One of the main features of the NorthStar Navigation 438,435 is its high-accuracy positioning capability. Utilizing multiple GNSS (Global Navigation Satellite System) signals, including GPS, GLONASS, Galileo, and BeiDou, the system can provide a positioning accuracy of up to 10 centimeters in real-time. This ensures that users can navigate confidently in challenging environments, whether at sea or in the air.

The navigation device also boasts robust integration capabilities with other onboard systems. It supports various communication protocols, allowing seamless interfacing with radar, AIS (Automatic Identification System), and autopilot systems. This integrated approach facilitates comprehensive situational awareness, enabling operators to make informed decisions swiftly.

Moreover, the NorthStar Navigation 438,435 features an intuitive user interface designed for ease of use. The touchscreen display provides clear visuals and customizable layouts, allowing users to tailor the information presented to their specific needs. With multiple language support and user-friendly controls, the system caters to diverse operators across different geographic regions.

Another defining characteristic of the NorthStar Navigation 438,435 is its resilience in harsh conditions. Built to withstand severe weather, it meets stringent marine and aviation industry standards for durability and reliability. The system is both waterproof and shock-resistant, ensuring optimal performance even in extreme environments.

In addition to its hardware capabilities, the NorthStar Navigation 438,435 incorporates advanced software features such as real-time route planning and environmental monitoring. Users can analyze weather patterns and potential hazards along their route, optimizing travel time and enhancing safety.

Overall, the NorthStar Navigation 438,435 stands as a reliable, feature-rich navigation solution that harmonizes advanced technology with user-centric design. Its focus on accuracy, integration, ease of use, and durability makes it an indispensable tool for navigating the complexities of modern transportation, ensuring successful missions across diverse maritime and aerial operations.
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