11.2 How to find the optimum height for the scanner ........................................................................................................17 
11.3 How to find the maximum detection range...................................................................................................................18 
11.4 How to reduce false echoes and shadow zones ...........................................................................................................19 
11.5 Install an open array scanner on a trestle........................................................................................................................19 
11.6 25 kW radar dimensions........................................................................................................................................................20 
11.7 Install the 25 kW scanner unit..............................................................................................................................................21 
11.8 When to install the open array............................................................................................................................................21 
11.9 Install the radar processor.....................................................................................................................................................22 
12 Wire the radar system 23 
12.1 Wiring guidelines.....................................................................................................................................................................23 
12.2 Connect the interconnection cable (NS003105/NS003106) to the 25 kW scanner...........................................23 
12.3 25 kW radar processor connectors.....................................................................................................................................26 
12.4 Run the interconnection cable (NS003105/NS003106) to the radar processor..................................................27 
12.5 Earth the 25 kW scanner........................................................................................................................................................28 
12.6 Install the 25 kW open array.................................................................................................................................................29 
12.7 Connect the 25 kW radar processor to a 6000i or 6100i display..............................................................................30 
12.7.1 Connect the radar communications cable (NS003107) to the junction box ..............................................31 
12.7.2 Configure the remote power control for a 6000i or 6100i (common power source) ..............................33 
12.7.3 Configure the remote power control for a 6000i or 6100i (different power sources).............................34 
12.8 Connect the 25 kW radar processor to an 8000i display ............................................................................................35 
12.9 Configure the remote power control for an 8000i .......................................................................................................36 
12.10Connect an 8000i network cable (NS00481X)................................................................................................................36 
12.11Connect the optional NMEA compass for an 8000i .....................................................................................................36 
12.11.1 Configure the optional NMEA compass ............................................................................................................36 
12.12Connect the power cable......................................................................................................................................................37 
12.13Connect the ground wire......................................................................................................................................................37 
12.14Radar system checklist...........................................................................................................................................................38 
13 Set up the radar with the Northstar 8000i system 38 
14 Set up the radar with the Northstar 6000i or 6100i 39 
14.1 Turn the radar on and off......................................................................................................................................................39 
14.1.1 Before you turn on the radar for the first time......................................................................................................39 
14.1.2 Turn the radar on ............................................................................................................................................................39 
14.1.3 Turn the radar off............................................................................................................................................................39 
14.2 Configure the navigator communications......................................................................................................................40 
14.3 Heading sensor requirements.............................................................................................................................................40 
14.3.1 Disable the heading sensor input .............................................................................................................................40 
14.4 Calibrating the radar...............................................................................................................................................................41 
14.4.1 Prepare for calibration...................................................................................................................................................41 
14.4.2 Tune the radar..................................................................................................................................................................41 
14.4.3 Set the STC Curve............................................................................................................................................................41 
14.4.4 Set the trigger delay.......................................................................................................................................................42 
14.4.5 Set the heading calibration (heading sensor installed) .....................................................................................42 
14.4.6 Set the heading calibration (heading sensor not installed) .............................................................................43 
14.5 Adjust the appearance settings..........................................................................................................................................43 
14.6 Restore all the factory settings............................................................................................................................................44 
14.6.1 Restore the factory appearance settings ................................................................................................................44 
Northstar 25 kW Radar Installation Manual 5