Technical Information
38 - English
Headphone Damage could occur to avionics equipment that is
intended for use only with 600 Ohm headsets. If in doubt,
consult the avionics equipment manufacturer.
Impedance Monaural mode: 160 Ohms ON and OF
Stereo mode: 320 Ohms ON and OFF
Frequency response 15 Hz to 15 kHz
Sensitivity: 92 dB SPL typical, measured at 1 mw,
1 kHz, full volume on a KEMAR ear simulator.
Microphone (Electret) Bias required: 8 to 16 VDC through 220 to 2200 Ohms.
Sensitivity: Varies depending on bias and AC radio input
impedance. Typical output is 600 mV at 114 dB SPL. To
assure proper modulation of the radio, it is recommended
that an avionics technician adjusts its input to match the
output of the microphone.
Microphone (Dynamic) Impedance: 5 Ohm or 150 Ohm dynamic mic
Sensitivity: Equivalent to M-87/M-101
Maximum ambient noise level 115 dBC SPL for full active noise reduction performance
Power source Battery-powered: Two (2) AA alkaline
Aircraft-powered: 10 to 32 VDC
Voltage Battery-powered: Two (2) AA alkaline batteries
Aircraft-powered: 10 to 32 VDC
Battery life Alkaline battery life: At least 45 hours in typical general
aviation aircraft noise. Duration varies with battery age,
ambient noise levels, temperature, ear cushion seal, and
use of the Bluetooth feature.
Current Operating: 25 mA in typical aircraft noise
Fuse/breaker recommended 1/4 amp, fast-blow fuse (AGC 1/4 amp fuse) or 1/2 amp
circuit breaker
Headset weight 12 ounces
Headset size range Slider not extended:
8.425" (214mm) H x 6.34" (161mm) W x 3.15" (80mm) D
Slider extended:
10.2" (259mm) H x 6.6" (168mm) W x 3.15" (80mm) D
Control module dimensions 1.5" (38.1mm) H x 1.5" (38.1mm) W x 4.92" (125mm) D
Temperature and Altitude
(Category A)
Operating: 5 to 131°F (-15 to 55°C)
Storage: -67 to 158°F (-55 to 70°C)
Altitude: 15,000 feet maximum pressure altitude for full
cancellation
Bluetooth wireless technology 3.1
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