Mod : 5016
ATR 42 Model : 400/500
WEATHER RADAR
NAVIGATION SYSTEM
P 4
NOV 99
010
1.15
.
50
EHSI DISPLAY
wx
1
T
O
F
A
–01–15–50–004–010A
A
Radar Mode Annunciator
Appears as soon as the weather radar is switched on.
D
WAIT (green) : corresponds to the radar unit warning up time (is illuminated
during 90 seconds)
D
STBY (green) : radar is in STBY mode.
D
TEST (green) : illuminates green when a test is initiated
D
WX :
- illuminates green when radar is operative
- illuminates amber to indicate that radar is not working when
Ąit is either :
. selected ON on EFIS Control Panel (ECP) but OFF on
Radar Control box.
. or selected ON on both ECP and Radar Control box but
antenna is not scanning.
D
G MAP (green) : enables to display the ground obstacles
D
RCT (green) : Rain Echo Attenuation Compensation Technique mode is engaged.
D
TX (magenta) : illuminates when radar operates with the screen dimmed.
Distance indication (white)
Appears as soon as ARC mode is selected on EHSI.
Weather indication
Is displayed in four colors.
AA
1
2
3
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