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Page Title:
Minimum range inhibit and TPG inhibit |
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|  MIL-R-50746(MU)
8 August 1973
3,3. 1.9 Maximum ranging. With the input signal to the
receiver l perture attenuated 37 1 decibels (dB), and the laser trans-
itter fired at a diffusely reflecting target located 490 meters from the
unit, the output at J1-e shall be as shown on figure 6 .
3.3.1.10 Minimum range inhibit and TPG inhibit. With the input
signal to the receiver aperture attenuated 37 1dB, with the logical zero
digital type-A signal (items 3.1 of table I) applied to J2-f. and the unit
fired at a diffusely reflecting target located 490 meters from the unit,
either the first pulse as shown in figure 6 or neither pulse shall be
present at J1-e. Then with the logical zero digital type A signal
(items 3.1 of table I) applied to both J2-f and J2-i, and the unit fired
at the same target, both pulses as shown in figure 6 shall be present
at J1-e.
3.3.1.11 Events counter. The events counter shall record one
event for each activation of the Q- switch or flashtube.
3.3.1.12 AGC inhibit. With the input to the receiver aperture
attenuated 37 ldB, l nd the digital type-B signals of table I l pplied to
J1-j and J1-k (waveform. l s shown on figure 7), the output at J2-j
shall be +27 3V. With the type-B signals removed from J 1- j and
J1-k, the output at J2-j shall be OlV.
3.3.1.13 Reticle illumination. With the reticle light control
voltage (item 2.8, table I) set for normal illumination, the reticle
pattern shall be clearly defined in a darkened area. The brightness of
a reticle defect shall be not greater than that of the reticle lines.
Increasing the reticle light control voltage shall increase the intensity
of the reticle illumination.
3.3.1.14 A-trigger threshold. With the energy output of the unit
set to 18.03.O millijoules, the voltage level at J4-35 l fter laser firing
shall be +3. 5 l.O volts.
3.3. 1.15 DioPter l djustment
3. 3.1.15.1 Diopter adjustment (+75 15F and +125F). The
required torque for rotation of the diopter adjustment for eyepiece focus
at +75 15F and +125 F shall fall within the range of 4 to 18 inch-pounds
(in-lbs).
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