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PRIMUS
r
880
Digital
W
eather
Radar
System
A28-1146-102-00
Radar Facts
5-6
40,000
40
ELEVATION IN FEET
RANGE NAUTICAL MILES
AD-17718-R1@
30,000
20,000
10,000
5,000
0
302010 50 60 70 80
20,900 FT
20,900 FT
10,500 FT
1.15
7.9
4,200 FT
4,200 FT
ANTENNA ADJUSTED
FOR 2.8 UPTILT
10,500 FT
Radar Beam Illumination Low Altitude
12-Inch Radiator
Figure 5-6
0
RANGE NAUTICAL MILES
AD-17719@
ELEVATION IN FEET
40,000
30,000
20,000
10,000
5,000
0 10 20 30 40 50 60 70 80
ANTENNA ADJUSTED
FOR 2.8 UPTILT
5.6
3,000 FT
3,000 FT
7,400 FT
7,400 FT
14,000 FT
14,000 FT
Radar Beam Illumination Low Altitude
18-Inch Radiator
Figure 5-7