Noise-Reduction Headsets
Headset for Aircraft Intercom and Radio Systems
The noise-reduction headsets are ideally suited for use in the cockpit and are integral components of the onboard communication and radio system. This series is certified to ETSO C57a & C58a (equivalent to ETSO C139a) and is used in the Airbus A320 family as well as the A330 and A340.
The headset features a microphone boom with a flexible tube that houses a dynamic microphone capsule with a built-in amplifier. The microphone boom can be worn on the left or right side. Thanks to its passive noise cancellation, the headset is also suitable for use in noisy environments.
Electroacoustic Data
Microphone
Electroacoustic principle
Dynamic with built-in amplifier
DC resistance
200 Ω
Directional characteristic
Supercardioid
Sensitivity
40 mV/Pa
Speaking distance
approx. 5 cm
Receiver
Electroacoustic principle
Dynamic
DC resistance
560 Ω (280 Ω per capsule)
Sound pressure level
90 dB
Nominal power handling capanility
0.1 W per capsule
Technical Overview
Electrical
Cable
Depending on model
Connection
Depending on model
Mechanical
Housing
Impact-resistant plastic
Weight
approx. 350 g
Color
Black
Environmental
Temperature range
Operation: -15 °C to 70 °C
Storage: -55 °C to 85 °C
Humidity class
according to RTCA-DO-160E, 6.0 Cat Arnrn
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