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Istruzioni per l'uso NorthStar Navigation, Modello Echo Sounder NorthStar 491

Produttore : NorthStar Navigation
File Size : 2.61 mb
File Nome : f29f9b81-5741-48ef-b2ba-bb06a38eea8e.pdf
Lingua di insegnamento: en
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Revision A Part Number GM494 Northstar a unit of Brunswick New Technologies Marine Electronics 30 Sudbury Road Service: 978/897-6600 Acton, Massachusetts 01720 Sales: 800/628-4487 Contents 1 Welcome . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Welcome to the Northstar 491. . . . . . . . . . . . 2 Using this manual. . . . . . . . . . . . . . . . . . . . . . 2 Technical support. . . . . . . . . . . . . . . . . . . . . . 4 How echo sounding works. . . . . . . . . . . . . . . 5 Powering the 491 on and off . . . . . . . . . . . . . 7 Setting up the 491 . . . . . . . . . . . . . . . . . . . . . 7 2 Quick Start: Using the Echo Sounder . . . . . . . . . 11 Displaying the echo sounder’s picture . . . . . 12 Using demo mode. . . . . . . . . . . . . . . . . . . . . 14 Introducing the displayed information . . . . 15 Using automatic mode . . . . . . . . . . . . . . . . . 16 Changing the frequency of echoes . . . . . . . 17 Zooming in and out . . . . . . . . . . . . . . . . . . . 19 Setup functions. . . . . . . . . . . . . . . . . . . . . . . 22 3 Adjusting the Echo Sounder Picture . . . . . . . . . 27 The picture menu . . . . . . . . . . . . . . . . . . . . . 28 Adjusting the gain (strong echoes) . . . . . . . . 28 Adjusting the clutter (weak echoes) . . . . . . . 29 Adjusting the signal level (weak echoes) . . . 30 Suppressing interference (the noise limiter) . 31 Selecting the color bar (hue) and white level 32 4 Understanding Depth Settings . . . . . . . . . . . . . . 35 Viewing the seabed depth . . . . . . . . . . . . . . 36 Viewing the depth marker . . . . . . . . . . . . . . 36 Changing the depth settings . . . . . . . . . . . . 36 Setting the picture’s shift (starting depth) . . 37 Setting the picture’s range . . . . . . . . . . . . . . 38 5 Other Functions: Using the MORE key . . . . . . . 41 Using the MORE key. . . . . . . . . . . . . . . . . . . 42 Changing the advance speed . . . . . . . . . . . . 42 Displaying the A-scope. . . . . . . . . . . . . . . . . 43 Setting the ECHO screen data . . . . . . . . . . . 44 Introducing snapshots . . . . . . . . . . . . . . . . . 46 Setting up the video image overlay . . . . . . . 49 6 Reviewing past echoes using SoundTrac . . . . . 51 Viewing past echoes using SoundTrac . . . . . 52 Marking fish as waypoints . . . . . . . . . . . . . . 53 Navigating to a past echo position . . . . . . . . 53 7 Setting the Alarms. . . . . . . . . . . . . . . . . . . . . . . . . 55 Understanding the alarms . . . . . . . . . . . . . . 56 Setting the fish alarm . . . . . . . . . . . . . . . . . . 56 Setting the bottom alarm . . . . . . . . . . . . . . . 58 Setting the temperature alarm . . . . . . . . . . . 60 8 Troubleshooting 491 Operations . . . . . . . . . . . . 63 Troubleshooting the echo sounder . . . . . . . 64 Checking the transducer . . . . . . . . . . . . . . . 65 1Welcome Welcome to the Northstar 491 . . . . . . . . . . . . . 1-2 Using this manual . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 Technical support . . . . . . . . . . . . . . . . . . . . . . . . . 1-4 How echo sounding works . . . . . . . . . . . . . . . . . 1-5 Powering the 491 on and off . . . . . . . . . . . . . . 1-7 Setting up the 491 . . . . . . . . . . . . . . . . . . . . . . . . . 1-7 This chapter introduces the Northstar 491 Operations Manual, explains how to contact Northstar for technical support and service, and describes the 491’s basic set-up and power on/off procedures. 491 Echo Sounder Operations Manual Page 1 Welcome to the Northstar 491 Congratulations on your purchase of the Northstar 491 Echo Sounder. The 491 connects with a Northstar navigator and a third-party transducer to add echo sounding capability to the Northstar 957, 958, 961, and 962 navigators. See the Northstar 491 Installation Manual (part number GM495) for recommended transducers. You may be adding the 491 to your existing Northstar navigator for echo sounding, or you may have purchased your navigator complete with echo sounding. In either case, the 491 should be installed and configured by a qualified marine technician. To get started right away, Section 2, ”Quick Start: Using the Echo Sounder,” starting on page 2-11. CAUTION! Proper installation and configuration of your Northstar 491 is of utmost importance for accurate and effective performance under a variety of conditions. To get the best performance from your 491, Northstar strongly recommends installation and set-up by a qualified marine technician. For installation procedures, see the Northstar 491 Echo Sounder Installation Manual (Part Number GM495). Using this manual Organization Chapter 1 introduces you to the 491 echo sounder and to this operations manual. Chapter 2 gives you a quick-start introduction to get you started with echo sounding as soon as the 491 has been installed and configured. Chapter 3 tells how to adjust the echo sounder’s display—the gain, clutter, colors, etc. Page 2 491 Echo Sounder Operations Man...


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