Marine RADAR User Manual

Page 8 Radar Installation Manual
3.1 MDS-8 ...................................................................................................... 25
3.1.0 Antenna Unit ....................................................................................... 25
3.1.1 Dimensions and Mounting ................................................................. 25
3.2 MDS-9 ...................................................................................................... 26
3.2.0 Antenna Unit ....................................................................................... 26
3.2.1 Dimensions and Mounting ................................................................. 27
3.3 MDS-10-4/MDS-10-5 ...................................................................................... 28
3.3.0 Antenna Unit ....................................................................................... 28
3.3.1 Dimensions and Mounting ................................................................. 29
Appendix A. WHAT IS RADAR? ............................................................................................ 31
A.0 GENERAL ...................................................................................................... 31
A.0.0 Antenna .............................................................................................. 31
A.0.1 Side Lobe ........................................................................................... 31
A.1 CHARACTERISTICS OF RADAR WAVE ...................................................... 32
A.1.0 Targets difficult to display on screen ................................................. 32
A.1.1 Shadow zones of radar ...................................................................... 32
A.1.2 False echoes ...................................................................................... 33
Ghost echoes ..................................................................................... 33
Multiple echoes .................................................................................. 33
False echoes caused by side lobe .................................................... 34
Distant False echoes caused by duct phenomenon ......................... 34
Radar interference ............................................................................. 34
Appendix B. INSTALLATION ................................................................................................ 37
B.0 MORE INSTALLATION CONSIDERATIONS ................................................. 37
B.0.0 Shifting from keel line ........................................................................ 37
B.0.1 Obtaining sufficient dip angle ............................................................. 37
B.1 INSTALLING SCANNER UNIT ....................................................................... 38
INDEX ...................................................................................................... 39