Mounting The Scanner Unit; Connecting The Scanner Unit Cable - JRC Radar 3000 Instruction Manual

3.4 MOUNTING THE SCANNER UNIT

Selecting an adequate location for the scanner unit requires careful consider-
ation. On many small vessels, the unit can be installed on a mast platform, on
an arch, or on a bridge structure near the ship's centerline.
The radiator beam should not be obstructed by nearby large objects. Locate the
unit where large structures such as superstructures, searchlight, horns or masts
are not in the same horizontal plane, otherwise, blind areas and false targets can
appear on the radar screen.
Using the outline drawing of FIG 3-3 or template in the front of the manual as
a guide, install the scanner unit and secure it to a solid mounting surface.
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 when
the vessel is at its cruising speed. This substantially alters and raises the radar's
radiation plain. In this case nearby target detection might be poor. It may be
helpful to lower the radar beam towards the parallel by shimming the radar
pedestal so as to tilt the beam angle slightly downward with respect to the wa-
terline.

3.5 CONNECTING THE SCANNER UNIT CABLE

① Route the scanner unit cable from bottom of the mounting base and connect
them to connectors J1 and W1 of the CME-229 modulator printed circuit
board.
② Tighten the ground terminal and securing the clamping plate with the rub-
ber grommet.
INSTALLATION 11