3.VIDEO SOUNDER OPERATION

3.1Principle of Operation

The Video Sounder of the GP-1600F determines the distance be- tween its transducer and underwater objects such as fish, lake bot- tom or seabed and displays the results on the screen. It does this by utilizing the fact that an ultrasonic wave transmitted through water travels at a nearly constant speed of 4800 feet (1500 meters) per second. When a sound wave strikes an underwater object such as fish or sea bottom, part of the sound wave is reflected back toward the source. Thus by calculating the time difference between the transmission of a sound wave and the reception of the reflected sound wave, the depth to the object can be determined.

The entire process begins in the display unit. Transmitter power is sent to the transducer as a short pulse of electrical energy. The electrical signal produced by the transmitter is converted into an ultrasonic signal by the transducer and transmitted into the water. Any reflected signals from intervening objects (such as a fish school) are received by the transducer and converted back into an electrical signal. It is then amplified in the amplifier section, and finally, displayed on the screen.

The picture displayed is made up of a series of vertical scan lines, one for each transmission. Each line represents a "snapshot" of what has occurred beneath the boat. The series of snapshots are accumulated side by side across the screen, and the resulting con- tours of the bottom and fish between the bottom and surface are displayed.

Figure 3-1 Typical video sounder display

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Furuno GP-1600F manual Video Sounder Operation, Principle of Operation
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GP-1600F specifications

The Furuno GP-1600F is an innovative marine GPS chart plotter designed for the serious boating enthusiast or commercial mariner. This advanced device combines reliable positioning accuracy with a range of user-friendly features, making it a popular choice for those navigating both coastal and offshore waters.

One of the standout features of the GP-1600F is its high-resolution color display. The 6.5-inch screen provides a clear and vibrant view of maps and navigational data, ensuring that users can quickly interpret information at a glance even in bright sunlight. The user interface is intuitive, enabling both novice and experienced users to operate the device effortlessly.

The GP-1600F incorporates advanced GPS technology, providing incredibly precise positioning capabilities. With a high-sensitivity GPS receiver and Fast Acquisition Technology, the unit is designed to lock onto satellites quickly, even in challenging environments. The built-in WAAS (Wide Area Augmentation System) receiver further enhances accuracy, ensuring that boaters can navigate with confidence.

One of the notable features of the GP-1600F is its ability to integrate seamlessly with other Furuno marine electronics. This capability allows users to expand their system with additional components, such as radar or fish finders, creating a comprehensive navigation solution. The ability to share data between devices enhances situational awareness and allows for more informed decision-making on the water.

The GP-1600F also comes equipped with advanced charting capabilities. Users can access a variety of maps and navigational charts, including vector and raster formats, to suit their specific needs. The unit supports C-MAP and Navionics chart formats, providing flexibility for different boating environments. This versatility makes it an excellent option whether you are cruising on a lake, sailing in coastal waters, or engaging in offshore adventures.

In terms of durability, the GP-1600F is built to withstand the harsh marine environment. It comes with a rugged housing that is both waterproof and resistant to saltwater corrosion, ensuring reliability in all conditions. The unit's design also includes a user-replaceable fuse, making maintenance straightforward and cost-effective.

Overall, the Furuno GP-1600F is a robust and feature-rich marine GPS chart plotter that combines advanced technology with practical usability. Its high-resolution display, precise GPS capabilities, integration options, and durable construction make it an ideal choice for any serious mariner looking to enhance their on-water navigation experience. Whether for leisure boating or professional use, the GP-1600F stands out as an essential tool for safe and informed navigation.
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