2.13.6
2.13.7
2.13.8
2.13.9
SETTING AIS FILTER.................................................................................................. 2-100
2.13.10 TT Target All Clear........................................................................................................ 2-100
2.15 PLOTTER UNIT ................................................................................................................... 2-102
2.15.1
2.15.2
2.16 SETTING TIMED TX............................................................................................................ 2-104
3.1
3.2
REFLECTION FROM TARGET .............................................................................................. 3-3
3.3
3.3.1
SEA CLUTTER ................................................................................................................. 3-4
3.3.2
RAIN AND SNOW CLUTTER .......................................................................................... 3-4
3.3.3
3.4
FALSE ECHOES...................................................................................................................... 3-5
3.4.1
SHADOW .......................................................................................................................... 3-5
3.4.2
SIDE LOBE EFFECT........................................................................................................ 3-5
3.4.3
3.4.4
3.4.5
SECOND TIME ECHOES ................................................................................................ 3-6
3.4.6
RADAR INTERFERENCE................................................................................................ 3-7
3.5
4.1
ROUTINE MAINTENANCE ..................................................................................................... 4-1
4.2
MAINTENANCE ON EACH UNIT ........................................................................................... 4-2
4.2.1
4.2.2
DISPLAY UNIT NCD-2237............................................................................................... 4-5
4.3
PERFORMANCE CHECK ....................................................................................................... 4-6
4.3.1
TEST MENU ..................................................................................................................... 4-7
4.3.2
SYSTEM INFORMATION ................................................................................................ 4-7
4.3.3
SYSTEM TIME.................................................................................................................. 4-8
4.3.4
SCANNER INFORMATION ............................................................................................. 4-8
4.3.5
HARDWARE INFORMATION.......................................................................................... 4-9
4.3.6
ERROR LOG..................................................................................................................... 4-9
4.3.7
LINE MONITOR .............................................................................................................. 4-11
) ....................................................... 2-98
CONTENTS
xvii