MIL-G-85742(AS)
3.2.1.6 False seeker steering commands. While tracking a 2C power
level, pulse repetition frequency (PRF) 2 and a pulse width (PW) of 2
target at 10 ± 2 degrees off boresight, the seeker torquer zero to peak and
peak to peak (p-p) voltages at A3A1W1P1 pins 10 and 11 shall be not greater
than 400 millivolts (mV) (1.33 degrees per second (deg/sec)) at freq~encies
C through E, not greater than 600 mV (2.0 deg/sec) at frequencies B and F
and not greater than 750 mV (2.5 deg/sec) at frequencies A + 0.5 gigahertz
(GHz) and G - 0.5 GHz when the (XS is rolled clockwise and counterclockwise
about boresight at an angular rate of 1 radian/sec. This requirement shall
be met for 20 of the 28 torquer outputs measured at the 7 frequencies speci-
fied above. (See the Appendix for a definition of the radio frequency
signal parameters).
3.2.1.7 Video output pulse amplitude. The video output pulse amplitude
shall be 3.0 ±0.6 volts (V) for GCS input power levels from lower threshold
+10 decibels (dB) to the power level at which the RF attenuator is enabled
+3 dB. This requirements shall be met for signal conditions defined in the
Appendix.
3.2.1.8 Target acquisition. The GCS shall provide the capability to
scan the frequency band of frequency A to G and acquire a target with$n
T1 + T2. The GES shall continue to re-scan until a target is acquired.
After target acquisition and upon receipt of the uncage/recage command, the
GCS shall be capable of rescanning and reacquiring the target.
3.2.1.9 Target reaquisition. Upon loss of target track the GCS shall
start sweeping upward in frequency and acquire the next target to appear.
3.2.1.10 Field-of-view. The unambiguous field-of-view shall be not less
than ±15 degrees (deg) from missile boresight.
3.2.1.11 Lock-on sensitivity and dynamic range. While aboard the
aircraft the RF attenuator shall be enabled when the seeker is caged.
While in this state the GCS shall have the capability to acquire and track
targets over the frequency range of A to G whose power varies over at least
the range from 2C to 1C. With the attenuator free to operate as directed
by the AGC design (seeker uncaged) the GCS shall have the capability to
acquire and track targets over the frequency range of A to G whose power
level covers the range of at least 4B to 1D. Upon acquistion of targets
over the power levels described, the GCS shall continue to track these
targets to power levels of 1C + 10 dB or greater. The RF attenuator shall
be enabled at 43 ± 5 dB above the lower threshold signal level, provide 20
± 6 db of attenuation and provide 8 ± 6 dB of hysteresis.
3.2.1.12 Gyro steady-state speed and slowdown time. The gyro steady
state speed with the gyro caged and the GCS stationary with the radome in
place shall be as specified in the Appendix. Ten seconds after removing
power to the gyro the speed shall decrease not less than 7 Hz and not
greater than 20 Hz of the speed while powered.
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