The M-101/AIC is a noise-canceling moving coil microphone element designed for use on a headband-type headset at low altitudes or in an oxygen mask or pressure helmet. The microphone is intended for use with AN/AIC-10 and AN/AIC-18 intercommunication sets to provide communications in noise conditions encountered in military aircraft. The unit meets certain requirements of MIL-STD-810 and MIL-STD-202 and weighs 16 g.
a maximum of 16 grams (without MT-2189/AIC bracket)
5 ohms or 150 ohms ±15 ohms
200Hz to 6000Hz
Sensitivity at ground level
36.90dB to 42.92dB (re 1uv)
Sensitivity at a simulated altitude
equal to but not more than 8dB of the ground level sensitivity when tested at 25,000ft.
method 201 of MIL-STD-202
Procedure III of MIL-STD-810