Description: The helmet is equipped with a PTT (Push To Talk) installed in the handset.
Headphone:
Type: Dynamic (50)
Frequency Response:100Hz to 8 kHz
Sensitivity: 95+/-5 dB SPL(1 kHz, 1 mW input per earcup side)
full volume on ear simulator
Impedance:150 ohms (300 ohms each; wired in parallel)
Rate Input: 100mW
Max. Iuput: 250mW
Microphone and Amplifier:
Element Type: Noise-canceling electret
Frequency Response: 150Hz to 5kHz
Operating Voltage (supplied by aircraft): 8-32 Volts DC
Matching Impedance: 150-1000 ohms
Sensitivity: -33+/-4 dB
(ref: 0dB SPL=20.0uPa at 1 kHz with 10 Vdc 150 ohms AC load)
