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iii
TABLE OF
CONTENTS
FOREWORD............................................ iv
SPECIFICATIONS .................................... v
1. OPERATION
1.1 Control Description ............................. 1
1.2 Display Indications and Markers ......... 2
1.3 Turning the Radar On and Off ............. 2
1.4 Showing Radar Picture ........................ 3
1.5 Selecting the Range ............................. 3
1.6 Adjusting LCD Backlighting and
Display Tone ........................................ 3
1.7 Adjusting Control Panel Brilliance ...... 3
1.8 Adjusting GAIN, STC, A/C RAIN
and A/C AUTO .................................... 3
1.9 Measuring the Range ........................... 5
1.10 Measuring the Bearing....................... 6
1.11 Selecting the Presentation Mode........ 7
1.12 Menu Operation ................................. 7
1.13 Selecting the Display Mode............... 9
1.14 The Window Display ....................... 10
1.15 Guard Alarm .................................... 10
1.16 Suppressing Radar Interference ....... 12
1.17 Suppressing Noise Interference ....... 12
1.18 Off Centering the Display................ 12
1.19 Echo Trails ....................................... 13
1.20 The Navigation Data Display .......... 14
1.21 Echo Stretch..................................... 14
1.22 Selecting Unit of Measurement
for Range ......................................... 15
1.23 Selecting Bearing Reference............ 15
1.24 Erasing the Heading Marker ............ 15
1.25 Deselecting Ranges.......................... 16
1.26 Displaying Navigation During
Stand-by........................................... 16
1.27 Outputting Cursor Position to
Navigator ......................................... 17
1.28 Displaying Cursor Position, Range
and Bearing to Cursor ...................... 17
1.29 Visual Alarm Indications ................. 17
2. INTERPRETING THE
DISPLAY
2.1 The Radar Wave and Radar Horizon . 18
2.2 Target Properties and Radar Wave
Reflection........................................... 18
2.3 Range Resolution............................... 19
2.4 Bearing Resolution ............................ 19
2.5 False Echoes ...................................... 19
2.6 Nautical Chart and Radar Picture ...... 21
3. MAINTENANCE &
TROUBLESHOOTING
3.1 Safety Information ............................. 22
3.2 Preventative Maintenance.................. 23
3.3 Replacing the Fuse............................. 23
3.4 Troubleshooting ................................. 24
3.5 Self Test ............................................. 25
4. INSTALLATION
4.1 Display Unit Installation.................... 26
4.2 Mounting Procedure .......................... 26
4.3 Connections ....................................... 28
4.4 Installation Check List....................... 31
4.5 Initial Adjustment of Picture.............. 31
4.6 Displaying the Installation Menus ..... 32
4.7 Entering Initial Settings ..................... 33
4.8 Relative Bearing alignment ............... 33
4.9 Sweep Timing .................................... 34
4.10 Closing the Installation Menus ........ 34
4.11 Signal Cable Connection ................. 34
Appendix A INSTALLATION OF
BUFFER CIRCUIT