BenutzerhandbuchInhaltsverzeichnis1 Welcome5Welcome to the Northstar 4916Using this manual6Technical support8How echo sounding works9Powering the 491 on and off11Setting up the 491112 Quick Start: Using the Echo Sounder15Displaying the echo sounder’s picture16Using demo mode18Introducing the displayed information19Using automatic mode20Changing the frequency of echoes21Zooming in and out23Setup functions263 Adjusting the Echo Sounder Picture31The picture menu32Adjusting the gain (strong echoes)32Adjusting the clutter (weak echoes)33Adjusting the signal level (weak echoes)34Suppressing interference (the noise limiter)35Selecting the color bar (hue) and white level364 Understanding Depth Settings39Viewing the seabed depth40Viewing the depth marker40Changing the depth settings40Setting the picture’s shift (starting depth)41Setting the picture’s range425 Other Functions: Using the MORE key45Using the MORE key46Changing the advance speed46Displaying the A-scope47Setting the ECHO screen data48Introducing snapshots50Setting up the video image overlay536 Reviewing past echoes using SoundTrac55Viewing past echoes using SoundTrac56Marking fish as waypoints57Navigating to a past echo position577 Setting the Alarms59Understanding the alarms60Setting the fish alarm60Setting the bottom alarm62Setting the temperature alarm648 Troubleshooting 491 Operations67Troubleshooting the echo sounder68Checking the transducer69A 491 Features and Specifications71Glossary75Größe: 2,78 MBSeiten: 76Language: EnglishHandbuch öffnen
