5-4 Sonar A-Scope display

To show the A-Scope display, select Sonar A-Scope and press . Use this to analyse the sonar data in detail and optimize the Gain settings.

Divider line between sonar history and A-Scope

Gain setting (strongest echo for display)

Gain threshold (weakest echo for display)

The user can define the level of the weakest and strongest echoes to be shown on the sonar displays, by using the Gain setting. See section 4-3 Gain, for more information.

The strength of an echo at a particular depth is shown by the length of the horizontal line at that depth. A strong echo produces a long line whereas a weak echo produces a short line.

Fish recognition

The echo strengths shown on the A-Scope can be useful in recognising the type of fish. Different species of fish have different sizes and shapes of swim bladders. The air in the swim bladder reflects the ultrasonic pulse, so the strength of the echo varies between fish species according to the size and shape of the swim bladder.

When fishing among a school of fish and catching them, note the fish species and the strength of the echo that it returns on the A-Scope. Then, when that particular echo is seen at future times on the fishfinder, it is likely to be the same fish species.

5-5 Fuel display (Explorer 438 only)

To show the Fuel display, select Fueland press .

(See section 3-3 Setup > Fuel for information about setting up the fuel values. If the number of engines is set to 0, the fuel features are turned off.)

Used shows total fuel used since this was last reset with the Clear Used command.

Remaining shows the amount of fuel remaining in the tank(s).

Flow shows the fuel consumption per hour. For twin engine installations, the fuel flow for each engine is shown separately. This is useful for checking that both engines are under the same load.

Economy is the distance travelled per unit of fuel used. The fishfinder calculates this from the boat speed and fuel used. The bigger this number, the better the fuel economy. Adjust the throttle and trim to achieve the best fuel economy. Note that the Explorer 438 uses a paddlewheel transducer to measure speed, used to calculate the fuel economy. Therefore, calibration of the boat speed measurement is essential for an accurate fuel economy reading. See section 3-8 Setup > Calibrate.

Northstar Explorer 435/438 Installation and Operation Manual

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NorthStar Navigation 435 operation manual Sonar A-Scope display, Fish recognition, Fuel display Explorer 438 only
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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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