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|  MIL-T-81778C(AS)
(4)
Azimuth and elevation angles shall be measured to an
accuracy of
1.0 percent
0,2 degree in IR slave,
radar scan mode in the region of +40 degrees.
(5)
expanded sweep IR signal slope shall be measured to
an accuracy of 1 percent in region of 1 Vdc and period
to an accuracy of
1 percent in the region of 0.3 second
in IR slave radar track mode.
(6)
The azimuth motor drive shall be measured to an accuracy
of 3 percent in IR slave, radar track mode in the region
of 25 Vrms.
(7)
In the radar slave, IR track sample mode the azimuth and
elevation angles shall be measured to an accuracy of
1.0 percent
0.2 degree in the region of 35 to 45 degrees.
In the radar slave, IR track sample mode the
(8)
and
outputs shall be measured to an accuracy of 0.1
percent in the region of 5 to 6 Vdc.
In the radar slave, IR track hold mode the azimuth and
(9)
elevation angle shall be measured to an accuracy of 1.0
percent 0.2 degree in the region of 35 to 45 degrees.
Return to search shall be verified.
(lo)
BIT tests.
j.
(1)
The IR display video shall be measured to an accuracy
of 3 percent in raid size estimate test in the region
of 5.4 V peak,
(2)
The azimuth and elevation angles shall be measured to
an accuracy of 1.0 percent 0.2 degree in the BIT
search test in the region of O degree.
(3)
The elevation scan shall be measured to an accuracy of
5 percent in the region of
30 degrees.
(4)
The BIT search error gain shall be measured to an accuracy
of 2 percent in the region of 3.4 V peak.
(5)
The azimuth and elevation motor drive shall be measured
to an accuracy of 100 mVdc.
(6)
The BIT source voltage return shall be verified.
Power output tests.
k.
(1) The dc voltages shall be measured to an accuracy of 0.1
percent in the 10 to 50 Vdc range.
(2) The ac voltages shall be measured to an accuracy of 1
percent in the 100 to 120 Vac range and in the region of
28 Vat.
(3) The returns shall be verified.
(4) IR on board shall be verified.
3.4.1.6 Power Supply PP-6773( )/AWG-9. The LFTS shall be capable of per-
forming the following tests on the semiregulated dc power supply:
-17-
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