MIL-PRF-62546C
2/ Immune at Any Distance (IAD). Includes the case when stimuli is physically as
near the sensor as possible.
3/ To be the same immunity distance as when not chopped.
4/ The immunity distance of the combination indicated when not chopped, for
instance, 300 and 50 mm (12 and 2 in.), the immunity distance is 300 mm (12 in.)
for combination.
5/ Distances to be observed.
TABLE II. Discrimination performance.
Discrimination
Armor
Munition
requirement
32 mm (1.25 in.) aluminum
25 mm (1 in.) kinetic energy
90%
51 mm (2 in.) steel
38 mm (1.5 in.) chemical energy
90%
32 mm (1.25 in.) steel applique
over 25 mm (1 in.) aluminum
89 mm (3.5 in.) chemical energy
90%
with spall liners
3.3.3.5.3 Conducted susceptibility (30 Hz to 50 kHz). Performance characteristics shall
not degrade beyond the tolerances given herein when subjected to electromagnetic energy
injected on its dc power leads equal to or less than the values shown in figure 5.
3.3.3.5.4 Conducted susceptibility (50 kHz to 400 MHz). Performance characteristics
shall not degrade beyond the tolerances given herein when subjected to the specified power
levels on figure 6 are applied to the equipment power input terminals.
3.3.3.5.5 Conducted susceptibility. There shall be no degradation of performance or
malfunction when the spike shown in figure 7 is applied to the ac or dc power input lines.
3.3.3.5.6 Radiated emissions. Field emissions in the frequency range of 14 kHz to
10 gigahertz (GHz) shall not be generated and radiated in excess of the values shown in figure 8
at the test distances of 3 meters (m) on each face of the enclosure with the door and hatches
open.
3.3.3.5.7 Radiated susceptibility. There shall be no malfunction, degradation of
performance, or deviation from specified indications beyond tolerances given herein when
subjected to the spike shape shown in figure 7, where E=100 V across 10 ohms, or the following
radiated fields:
10 kHz to 400 MHz
Sheltered
Nonsheltered
10 kHz - 1.9 MHz
10 volt/meter (V/m)
1 V/m
2.0 MHz - 29.99 MHz
20 V/m
5 V/m
30 MHz - 400 MHz
50 V/m
10 V/m
7
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