Display Levels Related To Dbz Levels (Typical) - Honeywell PRIMUS 660 Pilot's Manual

RAINFALL
DISPLAY RATE
LEVEL MM/HR
4 GREATER
(MAGENTA THAN
) 50
3
(RED) 12 – 50
2
(YELLOW
4 – 12
1
(GREEN)
1 – 4
0 LESS THAN
(BLACK) 1

Display Levels Related to dBZ Levels (Typical)

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