MIL-PRF-49166C(CR)
4.2.3 Disposition of first article samples. First article samples shall not be considered as
part of the procurement quantities .
4.3 Conformance inspection.
4.3.1 Inspection. Visual inspection shall be as specified in 4.2.1.
4.3.2 Tests.
4.3.2.1 Group A inspection. Group A inspection shall be conducted at ambient
temperature on all scanners following the preconditioning of 3.12 and the visual inspection of
4.3.1. Group A tests listed in Table III may be performed in any order. Failure of any test shall
be cause for rejection of that unit.
TABLE III. Group A inspection.
Inspection
Requirement
Test
paragraph
paragraph
Specific scan frequency
3.6.1.2
4.5.1.2
Synchronous scan frequency
3.6.1.3
4.5.1.3
Scan angle
3.6.1.4
4.5.1.4
Interlace
3.6.2
4.5.2
Power consumption
3.6.4
4.5.4
Scan efficiency
3.6.5
4.5.5
Scan jitter in azimuth
3.6.6
4.5.6
Scan jitter in interlace
3.6.7
4.5.7
4.3.2.2 Group B inspection. Not required.
4.3.2.3 Group C inspection. Group C inspections shall be conducted on scanners selected
from units which have passed the tests in 4.3.2.1. The sample (s) shall be tested in accordance
with the inspections listed in Table IV . Group C tests may be performed in any order, except that
the modulation transfer function test 4.5.8 et al shall be performed last.
TABLE IV. Group C Inspection.
Inspection
Requirement
Test
paragraph
paragraph
Scan direction
3.6.3
4.5.3
High temperature
3.7.2
4.6.2
Low temperature
3.7.3
4.6.3
Shock
3.7.4
4.6.4
Vibration
3.7.5
4.6.5
Modulation transfer function
3.6.8
4.5.8
9
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