NorthStar Navigation NorthStar 491 Benutzerhandbuch

Introducing snapshots

. . . . . . . . . . . . . . . . . 46

Setting up the video image overlay

. . . . . . . 49

6 Reviewing past echoes using SoundTrac

. . . . . 51

Viewing past echoes using SoundTrac

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