MIL-PRF-49136C(CR)
3.5.7.1 Input Power. The CM Test Sets shall operate and meet the requirements specified
herein with an input voltage of 27.5 volts (DC) +1.5 volts (DC) and input current not greater
than 260 milliamperes (mA).
3.5.7.2 CM Test Set ON-OFF Control. The CM Test Sets shall provide ON-OFF control of
the 28 volt (DC) power to the transmitter of the Countermeasures Set, AN/ALQ-144( ).
3.5.7.3 CM Test Set Power Control. The CM Test Sets shall supply a 28 VDC signal to the
Countermeasures Set AN/ALQ-144( ) to disable the source power when it is desired to
operate without the source being on and to inhibit activation of INOP indications.
3.5.7.4 CM Test Set Output Control. The CM Test Sets shall measure the infrared source
monitor voltage of the Countermeasure Set, AN/ALQ-144( ).
3.5.7.5 Lamp Test Operation. The CM Test Sets shall provide for testing the operation of
the indicating lamps of the Multifunction Test Meter, ME-499( )/ALM-178( ).
3.5.7.6 CM Test Set Voltage Measurements. The CM Test Sets shall measure voltage over
the range of zero to 32 VDC with an accuracy of +3 percent.
3.5.7.7 CM Test Set Current Measurements. The CM Test Sets shall measure current over
the range of zero to 10 amperes (A) with an accuracy of +3 percent.
3.5.7.8 CM Test Set Frequency Measurements. The CM Test Sets shall measure frequency
and frequency sweep limits with an accuracy of +1 percent.
3.6
Environmental Conditions
3.6.1 Altitude. The CM Test Sets shall operate at all altitudes up to and including 10,000
feet (3408 m) above sea level and shall be air transportable, non-operating, at any altitude up
to and including 40,000 feet (12,192M) above sea level.
3.6.2 High Temperature. The CM Test Sets shall continuously operate at temperatures up
to and including +55oC (+131oF) and shall withstand non-operating exposure at temperatures
up to and including +60oC (+140oF).
3.6.3 Low Temperature. The CM Test Sets shall continuously operate at temperatures as
low as -40oC (-40oF) and shall withstand non-operating exposure at temperatures as low as
56.7oC (-70oF).
3.6.4 Humidity. The CM Test Sets shall operate satisfactorily after prolonged storage or
non-operating exposure at all humidity up to and including 98 percent relative humidity and
shall show no evidence of corrosion or rust of the internal or external parts as a result of this
exposure.
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