iii

TABLE OF CONTENTS
FOREWORD............................................. v

1. OPERATIONAL OVERVIEW

1.1 System Configuration ....................... 1-1
1.2 Control Description .......................... 1-2
1.3 Inserting Chart Cards........................ 1-2
1.4 Turning On/Off the Power................ 1-3
1.5 Selecting Chart Scale........................ 1-4
1.6 Adjusting Tone and Brilliance.......... 1-4
1.7 Plotter Displays................................. 1-4
1.8 Plotter Display Icons ........................ 1-7
1.9 Video Sounder Displays ................... 1-8
1.10 Menu Operation............................ 1-11
1.11 Menu Displays.............................. 1-12

2. PLOTTER OPERATION

2.1 Plotter Displays................................. 2-1
2.2 Presentation Mode ............................ 2-2
2.3 The Cursor ........................................ 2-3
2.4 Chart Cards ....................................... 2-3
2.5 Chart Symbols .................................. 2-5
2.6 Shifting the Plotter Display .............. 2-7
2.7 Entering Waypoints........................... 2-8
2.8 Changing Waypoint Data................ 2-12
2.9 Erasing Waypoints.......................... 2-13
2.10 Setting/Canceling Destination
Waypoint....................................... 2-13
2.11 Entering Routes............................. 2-15
2.12 Setting Trial Speed........................ 2-18
2.13 Following a Route ........................ 2-19
2.14 Skipping/Restoring Route
Waypoints..................................... 2-20
2.15 Cancelling Route Navigation........ 2-20
2.16 Erasing Route Waypoints.............. 2-20
2.17 Entering Marks ............................. 2-21
2.18 Changing Mark Attributes ............ 2-22
2.19 Erasing Marks............................... 2-23
2.20 Connecting Marks......................... 2-23
2.21 Entering Event Marks................... 2-24
2.22 Erasing Event Marks .................... 2-25
2.23 Setting Event Position as
Destination.................................... 2-25
2.24 Changing Event Mark Shape........ 2-25
2.25 The MOB Function....................... 2-25
2.26 Stopping Plotting of Track............ 2-26
2.27 Changing Track Plotting Interval.. 2-27
2.28 Erasing All Track, Marks.............. 2-27

3. VIDEO SOUNDER

OPERATION

3.1 Principle of Operation....................... 3-1
3.2 Video Sounder Displays ................... 3-2
3.3 Automatic Video Sounder Operation 3-6
3.4 Manual Video Sounder Operation.... 3-7
3.5 Suppressing Low Level Noise.......... 3-8
3.6 Selecting Picture Advance Speed ..... 3-9
3.7 Suppressing Interference ................ 3-10
3.8 Knowing Depth Change by Depth
Alert Alarm..................................... 3-10
3.9 Displaying the Water Temperature
Graph .............................................. 3-11
3.10 Brightening Fish Echoes............... 3-12
3.11 Selecting Zoom Ratio ................... 3-12
3.12 Measuring Depth by the VRM ..... 3-13
3.13 Fish and Bottom Alarms............... 3-13
3.14 Correcting Water Temperature
Readout......................................... 3-14
3.15 SOUNDER SETUP Menu............ 3-15

4. ALARMS

4.1 Description of Alarms....................... 4-1
4.2 Enabling/Disabling the Alarms......... 4-2
4.3 Deleting Aural and Visual Alarms.... 4-3

5. MENU OPERATIONS

5.1 Chart Position Calibration ................ 5-1
5.2 GPS Position Correction................... 5-1
5.3 Displaying Loran C or Decca LOPs . 5-2
5.4 DISPLAY SETUP Menu.................. 5-3
5.5 PLOTTER SETUP Menu ................. 5-4
5.6 UNIT SETUP menu
(unit of measurement)....................... 5-6
5.7 SENSOR SETUP menu.................... 5-7
5.8 NMEA SETUP menu........................ 5-7
5.9 GPS SETUP menu............................ 5-8
5.10 DGPS SETUP Menu..................... 5-10