Standard Horizon MDS-8, MDS-9, MDS-10-5 More Installation Considerations, Shifting from keel line

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Appendix B. INSTALLATION

B.0 MORE INSTALLATION CONSIDERATIONS

B.0.0 Shifting from keel line

By shifting the scanner position from the keel line to the starboard side of the boat, it is possible to move shadow zones to the port side. This makes it possible to keep a clear view to the bow. The distance to be shifted can calculated using the following equation:

Ls = 0.4R+D/2 [m] (when R<15m)

Ls = 0.025R+D/2 [m] (when R>=15m) where Ls = distance to be shifted from keel line

D = diameter of obstacle on keel line R = distance from scanner to obstacle

Scanner Unit

Obstacle

 

Ls

D

Keel

R

Figure B.0.0 - Shifting from keel line

B.0.1 Obtaining sufficient dip angle

Raise the scanner position so that there is a sufficient dip angle available between the line of sight from the scanner to the obstacle and the horizontal line. By raising the dip angle above 5°, it is possible to prevent mid- and long-distance shadow zones. The radar cannot detect objects below the line of sight.

Horizontal line

θ

Line of sight

Figure B.0.1 - Obtaining sufficient dip angle

Radar Installation Manual

 

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Contents MDS-10-4/MDS-10-5 SI-TEX RadarCode Issue a 170108e High Voltage Warning Microwave Radiation Hazard Safety PrecautionsMagnetron Preheating Table of Contents Index General Information IntroductionConventions Used IntroductionOptions Replacement PartsProduct Support Inquiries Packing List Cable InstallationInstallation Considerations Prepare the Radar for InstallationElectrical and Data Connections Installation ProcedureAntenna Cable Connection ProcedureTerminal C Radar Junction BOX ConnectionsOpen Array Connections Radar Antenna ConnectionsDome Connections 0 CP180 & CP180i Connections Chart Plotter Connections and SET UPPort Setup 1 CP300 & CP300i Connections 1 CP300 & CP300i ConnectionsACC Cable 2 CPV350 ConnectionsACC 1 Cable 3 CP500 ConnectionsCable 4 CPV550 ConnectionsBacking up Marks and Routes Chart Plotters Software UpdateInstalling Software Radar Installation Manual MDS-1 Antenna Unit Technical SpecificationsFeatures MDS-1 MDS-8 MDS-9 MDS-10-4/MDS-10-5 1 Radar MDS-1 Dimensions and Mounting1 Radar MDS-8 MDS-8 Antenna Unit1a Radar MDS-8 MDS-9 Antenna Unit1 Radar MDS-9 MDS-10-4/MDS-10-5 Antenna Unit Weight 21.2 Kg 47lb 4 feet Weight 21.9 Kg 49lb 5 feet Radar Installation Manual Side Lobe GeneralAntenna Shadow zones of radar Characteristics of Radar WaveTargets difficult to display on screen Multiple echoes False echoesGhost echoes Radar interference False echoes caused by side lobe Distant False echoes caused by duct phenomenon Or eliminate the interference Radar Installation Manual Obtaining sufficient dip angle More Installation ConsiderationsShifting from keel line Figure B.1 Installing scanner unit Installing Scanner Unit24, 25, 27 IndexPlease Note