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IntuVue RDR-4000 Weather Radar Pilot's Guide
OPERATING CONTROLS
When WXR is not selected on the display system, no radar display is
shown. While in the air, or on the ground if the radar has been auto-
activated by qualifiers, the radar will nevertheless continue to operate,
constantly updating the 3D memory so that current radar data is
immediately available whenever WXR is selected. (Typical auto-
activation qualifiers are Engine at Take-Off Thrust Setting, or both Oil
Pressure Active and Transponder On, or the Runway Awareness
Advisory System (RAAS) – if installed, indicates On Runway. See
AUTOMATIC WINDSHEAR MODE ACTIVATION on page 18.)
When approaching a gate, deselect WXR on all displays and/or select
TEST on the control panel to prevent the radar from transmitting.
SYSTEM CONTROL
060-4492-000
Rev 7, February 2015
(CP-1B)
L: Selects left system for normal weather operation.
R: Selects right system for normal weather
operation.
(CP-1A)
NORM: Normal weather operation.
(CP-1A/CP-1B)
TEST: Selects test mode and provides a test pattern
to allow verification of system operation and fault
isolation. While on the ground, the system test will
also exercise the windshear aural and visual alerts
shortly after being selected. If the system control is
placed in TEST while in flight, the display will show
the test pattern, but no windshear aural or visual
alerts will be annunciated. If a windshear event is
detected while in the test mode, the display will
switch to weather with the windshear icon overlaid,
and warning or caution annunciations will be
triggered, as appropriate.
Principles of Weather Radar Use
33
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