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Фрагмент инструкции
sonar! Your unit is a high-quality sonar designed for both professional and novice fishermen. All Eagle sonars have an automatic mode that finds and displays the bottom, fish, underwater structure and more – right out of the box. All you have to do is press the on (PWR) key. However, if you want to fine-tune your unit, press the MENU UP key. The FishEasy. 240 family has several powerful features you can control by scrolling through easy-to-use menus with the arrow and menu keys. To get started with your Eagle sonar, first read the installation section. It contains instructions for mounting the sonar unit, the transducer and any optional accessories, such as a speed sensor. Following recommended installation practices will pay off in optimumperformance of your Eagle sonar. Improper installation can cause problems down the road, especially if the transducer is badly mounted. After you've read the installation instructions, install the unit and accessories. Then, read the rest of the manual. The more you know about your sonar, the better it will work for you. Take advantage of the Simulator feature. It allows you to practice operating your sonar before you get it in the water. And when you finally head for your favorite fishing hole, take this manual along for reference. Capabilities and Specifications: FishEasy 240 Family General Case size: .........................5.8" H x 4.3" W x 2.5" D (14.7 cm H x 10.8 cm W x 6.6 cm D) sealed, waterproof; suitable for saltwater use. 1 Display: ............................High-contrast Film SuperTwist LCD. Diagonal viewing area: 3.5" (8.9 cm). Resolution: ......................240 pixels (vert.) x 160 pixels (horiz.) resolution; 38,400 total pixels Backlighting: ..................Amber LED backlit screen and keypad for night use. Input power: ...................10 to 17 volts DC. Current drain: ................170 ma lights off; 240 ma lights on. Back-up memory:...........Built-in memory stores sonar settings whenunit is turned off. Sonar Frequency: ......................200 kHz. Transducers:...................A Skimmer. transducer comes packed with your unit. Its 20° cone angle offers a widefish detection area of up to 60. with high sensitivity settings. Operates at boat speeds up to 70 mph (61 kts). Transmitter:....................1500 watts peak-to-peak power (typical); 188 watts RMS power (typical). Sonar sounding depth capability:............800 feet (244 meters). Actual capability depends on transducer configuration and installation, bottom composition and water conditions. All sonar units typically read deeper infresh water than in salt water. Depth display: ................Continuous digital readout. Audible alarms:..............Deep/shallow/fish. Automatic ranging: .......Yes, with instant screen updates. 2 Auto bottom track: ........Yes. Zoom bottom track:.......Yes. Split-screen zoom: .........Yes. Surface water temp: .....Yes, built into transducer. Optional external temperature sensor or combo speed/temp sensor available. Speed/distance log: .......Yes, with optional speed sensor. This manual covers the FishEasy 240 and FishEasy 240 Portable. Both units operate the same way. The only difference between the two is that the portable unit includes a portable transducer and other itemsthat enable portable use. NOTICE! The storage temperature for your unit is from -4 degrees to +167 degrees Fahrenheit (-20 degrees to +75 degrees Celsius). Extended storage in temperatures higher or lower than specified will damage the liquid crystal display in your unit. This type of damage is not covered by the warranty. For more information, contact the factory's Customer Service Department; phone numbers are inside the manual's back cover. How Sonar Works Sonar has been around since the 1940s, so if you already know how it works, skip ahead to the next segment on the typographical conventions used in this manual. But, if you've never owned a sonar fish finder, this segment will tell you the underwater basics. Sonar is an abbreviation for SOund NAvigation and Ranging, a technology developed during World War II for tracking enemy submarines. Asonar consists of a transmitter, transducer, receiver and display. In simple terms, here's how it finds the bottom, or the fish: 3 The transmitter emits an electrical impulse, which the transducer converts into a sound wave and sends into the water. (The sound frequency can't be heard by humans or fish.) The sound wave strikes an object (fish, structure, bottom) and bounces back to the transducer, which converts the sound back into an electrical signal. The receiver amplifies this return signal, or echo, and sends it to the display, where an image of the object appears on the scrolling sonar chart. The sonar's microprocessor calculates the time lapse between the transmitted signal and echo return to determine the distance to the object. The whole process repeats itself several times each second. 4 Transducer Installation Preparations The foll...