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13
Usually, the mounting surface for the
scanner unit should be parallel with
the ship’s waterline. Some vessels,
however, may adopt a higher bow
angle at some cruising speeds. This
substantially alters and raises the
radar’s radiation plane. In this case
nearby target detection might be
poor. It may be helpful to lower the
radar beam towards the FORWARD
parallel by shimming the radar ped-
estal in order to tilt the beam angle
slightly downward with respect to
the waterline.
3.5 CONNECTING THE SCANNER UNIT CABLE
The scanner unit is supplied with an interunit cable, which includes a plug (P1)
for connection to the display unit. If your installation does not allow you to run
the cable with the plug (P1) attached, the wire cable can be disconnected and
reconnected inside the scanner unit. When reconnected, be sure to include the
cable clamp, the rubber grommet, and the clamping plate. (See FIG. 3-6)
15
15
MAIN BEAM
WATERLINE
FORWARD
USING SHIMS TO
TOWER THE MAIN BEAM
WEDEGE or
WASHERS
IDEAL RADIATION PLANE
INSTALLATION