MIL-DTL-22442 Cable Assemblies, Aircraft Audio, General Specification ForThis specification covers the general requirements for complete cable assemblies, with molded or attached plugs including any required built in electronics, used in aircraft intracommunications and intercommunications systems. It covers cord sets for personal gear such as microphones, headsets, earphones, hand sets and similar equipment, and cable assemblies for contact with ground crew personnel.

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MIL-DTL-22442G

g. Capacitance: Less than 8 picofarads.

h. Low temperature and power coefficients.

6.4.1.6 Lock-in amplifier (optional).

a. Frequency range: 100 to 6000 Hz.

b. Sensitivity: l microvolts to 0.5 volt.

c. Output time constants: l millisecond to 10 seconds.

d. Harmonic rejection: 55 dB.

e. Normal output stability: 50 ppm.

f. Gain accuracy: �2 percent.

g. Digital readout (3-1/2 digits).

h. Phasing: Automatic.

i. Input impedance: l megohm or greater.

j. Gain: Incremental or lockable after calibration.

6.4.1.7 Oscilloscope.

a. Channel: Single.

b. Bandwidth: 5 megahertz.

c. Time base: 20 microsec/div to 1 millisec/div.

d. Time base accuracy: �3 percent.

e. Coupling: ac and dc.

f. Source: Internal.

g. Sweep mode: Auto trigger.

h. Voltage base: 5 millivolts/div to 10 volts/div.