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Roanwell Corporation is a leading designer and audio manufacturer of acoustic headsets, handsets, microphones, earphones cords, cables and accessories for military and commercial applications.
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Roanwell designs and manufactures rugged, reliable handsets for all your communication needs
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Roanwell makes: carbon, electret or dynamic microphones with or without amplifier.
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Type 216 (M-87/AIC) Microphone

The Type 216 (M-87/AIC) is a close-talking, noise-canceling (18dB), boom-mounted microphone. Developed specifically for military use, this microphone is also available for commercial applications.

NSN:

m87

5965-00-755-4643

Roanwell P/N:
216-030-001-603 (Black)
216-030-001-694 (Grey)
216-030-001-640 (Olive Drab)

Conforms to:
MIL-PRF-26542
Intended use: This is a noise-canceling dynamic microphone designed for use on a headband type headset at low altitudes or for use in a pressure type oxygen helmet, and at altitudes where the use of an oxygen helmet is required. The microphone is intended to provide communication under the noise conditions encountered in military and civilian aviation aircraft.

Specifications

216

Impedance: 4.0 ohms to 6.0 ohms.
Resistive load: 5 ohms.
Frequency Response: 200 – 6000 Hz
Sensitivity at ground level: 34.0dB – 40.98dB (re 1µV) or 50.4µV – 112.0 µV with a Sound Pressure Level (SPL) input of 2.8 Pascal’s (28 dynes/cm2 ) at 1 kHz
Sensitivity at 25000ft: Within ± 3 dB of initial ground level sensitivity
Noise Canceling: 18 dB Noise Canceling

 

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