1-2 How the Explorer 435 and Explorer 438 work

The Explorer 435 and Explorer 438 have two parts:

-the transducer attached to the hull

-the display unit.

The transducer generates an ultrasonic pulse (sound that is above the hearing range of the human ear), which travels down towards the bottom at a speed of about 4800 ft/sec (1500 m/sec), spreading out into a cone shape.

When the pulse meets an object, such as a fish or the bottom, it is partly reflected back up towards the boat as an echo. The depth of the object or bottom is calculated by the Explorer 435 and Explorer 438 by measuring the time taken between sending a pulse and receiving the echo. When an echo has been returned, the next pulse is sent.

The Explorer 435 and Explorer 438 convert each echo into an electronic signal, displayed as a vertical line of pixels. The most recent echo appears on the extreme right of the display, with the older echoes being scrolled towards the left, eventually disappearing off the display.

The scroll speed depends upon the water depth and scroll speed setting. See section 3-2 Setup > Sonar and section 4-1 Interpreting the display, for more information.

The appearance of echoes displayed are affected by:

•the fishfinder settings (range and gain settings)

•echoes (different fish types, different bottom types, wrecks and seaweed)

•noise (water clarity and bubbles).

See section 4-1 Interpreting the display, for more information.

Northstar Explorer 435/438 Installation and Operation Manual

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NorthStar Navigation How the Explorer 435 and Explorer 438 work, Transducer attached to the hull Display unit
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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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