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PRIMUS
R
660 Digital Weather Radar System
A28–1146–111
REV 2 5-29
Radar Facts
300 NAUTICAL MILES
DISPLAY
LEVEL
RAINFALL
RATE
MM/HR
RAINFALL
RATE
IN./HR
dBZ
MAXIMUM
CALIBRATE
D RANGE
(NM) 10–IN
AND 12–IN
FLAT–PLATE
MAXIMUM
CALIBRATE
D RANGE
(NM) 18–IN
FLAT–PLATE
MAXIMUM
CALIBRATE
D RANGE
(NM) 24–IN
FLAT–PLATE
4
(MAGENTA
)
GREATER
THAN
50
GREATER
THAN
2
GREATER
THAN
53
232
GREATER
THAN
300
GREATER
THAN
300
3
(RED)
12 – 50 0.5 – 2 40 – 53 130 190 230
2
(YELLOW
4 – 12 0.17 – 0.5 33 – 40 90 130 160
1
(GREEN)
1 – 4 0.04 – 0.17 23 – 33 55 80 100
0
(BLACK)
LESS THAN
1
LESS THAN
0.04
LESS THAN
23
– – –
Display Levels Related to dBZ Levels (Typical)
Table 5–6
WARNING
THE RADAR IS CALIBRATED FOR CONVECTIVE WEATHER.
STRATIFORM STORMS AT OR NEAR THE FREEZING LEVEL
CAN SHOW HIGH REFLECTIVITY. DO NOT PENETRATE SUCH
TARGETS.