Systems Guide

A318/A319/A320/A321

Professional

SYSTEMS

Systems guide

Vol

04-03-62

11 July 2018

In auto mode (MULTISCAN switch set to AUTO) the tilt is automatically controlled. Two beams (upper and

lower) are merged together to become one picture representing weather in the possible vertical flight

path of aircraft.

Also in MULTISCAN AUTO mode the GCS (ground clutter suspension) is usually in AUTO mode and so the

ground clutter will be suppressed. Only when GCS switch is set to spring loaded OFF-Position the ground

clutter would be visible, but GCS is also only available in MULTISCAN AUTO mode, not in MAN mode!

MAN MULTISCAN MODE

In manual mode (MULTISCAN switch to MAN) the radar beam is controlled via the TILT rotary knob. The

flight crew uses the following three features to operate the Collins WXR2100 Weather Radar in the

A318/319/A320/A321 family (if MULTISCAN MAN is selected):

• Gain control, which adjusts the sensitivity of the receiver (and should usually be set to AUTO).

• Antenna tilt, that controls the angle between the center of the beam and the horizon

• Range control of the ND, that has an essential influence on the optimum tilt setting