Sound Quality
At just 4 oz., the Airman 850 is the lightest ANR product in the marketplace. Wind noise and ambient noise is reduced by up to 12 decibels (dB) of. The headset also features a noise-cancelling electret microphone.
Comfort and Fit
An adjustable headband gives the wearer two inches of up and down earphone adjustment per side, while gimbal mounting improves the headset's side-to-side comfort. The ear cups and cushions have been enlarged from previous models to enhance pilot comfort.
Microphone
The Airman 850 features a miniature, amplified, noise-cancelling electret microphone that provides superior 400Hz hum rejection. The flexible boom rotates 320° and can be worn on either side of the head. A replaceable windscreen is included to minimize popping, hissing, and breathing sounds when speaking.
Controls
The Airman 850 contains an On/Off switch to control ANR power and a Hi/Low switch for controlling receiver volume.
Cordage and Plugs
The microphone cordage is protected inside the boom. A strain relief on the cord provides maximum durability. Shielded wire throughout the headset protects against RFI and EMI.
Versions Available
The Airman 850 is available in single-sided and dual-sided configurations.
FAA TSO Approval
The Airman 850 headset is approved for aircraft use under FAA TSO's C57a and C58a.
SPECIFICATION:
Receivers
• Frequency response: 350Hz – 3kHz
• Sensitivity: 90 +/- 5dB (1kHz, 1mW, “low” setting)
• Impedance: 150 Ohms +/- 20% @ 1kHz
Microphone
• Element type: Noise cancelling amplified electret
• Matching impedance: 50 – 600 Ohms
• Frequency response: 300Hz – 6000Hz (per RTCA DO-214)
• Sensitivity: 400mV+/-6dB (at 1kHz, 12VDC, 470 Ohms DC/150 Ohms AC load)
• Operating Voltage: 8-28 Vdc (470 Ohms impedance)
Active Noise Reduction (ANR)
• Power from ANR circuit is developed from Boom Microphone system
• Provides up to 12 dB attenuation between 100 and 2000 Hz
AVAILABLE HYGIENE PARTS:
Replacement Earseals (Leatherette/Foam) P/N: 800456-020
Replacement Windscreen P/N: 800456-019
Replacement Cloth Clip P/N: 590637-000