NorthStar Navigation 10 kW - Manual (Page 18)

3.3.6 10 kW radar dimensions
The 10 kW scanner is an open array model with a rotation diameter of 75.2" (1910 mm). Ensure that
the open array will be able to rotate freely and take this diameter into account when calculating the
recommended distances from other equipment.
Before starting the installation, use the drilling template to identify the:
ƒ cable inlet
ƒ safety switch
ƒ Earth bolt
ƒ front and rear of the scanner
The overall radar dimensions are shown:
3.3.7 Install the 10 kW scanner unit
Tape the paper installation template securely to the chosen location site. Before drilling, check that:
ƒ the location site is not more than 0.6" (15 mm) thick, to ensure that you can use the bolts
supplied.
ƒ you've oriented the template correctly so that the front of the scanner unit faces the bow
and the cable inlet faces the stern.
Drill the four bolt holes then remove the template and position the scanner over the bolt holes.
Slide a plain washer then a brass washer onto each bolt. Push the bolt down through the scanner bolt
hole and the drill hole, working from the top side of the location site.
Slide a plain washer, a spring washer onto the bolt then screw two nuts onto the bolt to secure it.
Northstar 10 kW Radar Installation Manual 18