Step by Step Guide

A318/319/320/321

Profesional

Step-By-Step Tutorial

Vol

06-01- 10

11. Dezember 2018

• GAIN control

• MULTISCAN (MAN and AUTO)

• GCS (OFF and AUTO)

• Antenna TILT

• Mode

• Range control of the ND (please see EFIS 2.1.5 #6)

Whereas the range control is handled on the EFIS for the other settings the WXR panel is used. To get

the maximum range / display it is necessary to have set P3D SETTINGS / WEATHER / CLOUD DRAW

DISTANCE to the maximum (if a weather tool is used apply the same settings to it).

AUTO MULTISCAN MODE

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. Ground clutter can be suppressed by GCS in MULTISCAN mode

(AUTO), but not in manual mode (MAN) – using a lower tilt it will always be visible (except water

surface, which will be displayed in black).

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

A318/319/320/321 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 is the angle between the center of the beam and the horizon

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