Telex Airman ANR 500, Руководство по эксплуатации

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Operation
10
Specifications
Receivers
Type: Dynamic
Frequency Response:±6dB re 1000Hz over the range 350-3000Hz
Sensitivity: 90±5dB SPL (1kHz, 1mW input per earcup side)
Impedance: 300
Ω
stereo or 150
Ω
monaural mode
Stereo/Mono:
Switch located on the control module, allows stereo or monaural headset
operation.
Microphone/Amplifier Assembly
Element Type: Noise-canceling electret
Frequency Response: 300 to 5kHz
Sensitivity:
-51±3dB (ref. 1V/
μ
bar at 1kHz with 12VDC and 470
Ω
DC load 150
Ω
AC
load
Matching Impedance: 50-600 Ohms
Gain Adjustment Range: ±5dB (clockwise rotation increases gain)
Operating Voltage (supplied by aircraft): 8-16 Volts DC
Microphone Interface:
Operates from a typical aircraft radio per RTCA DO-170; 8 to 16 Volts DC
with 470 Ohms DC resistance, 150 Ohms AC resistance
Power
Switch: On/Off switch on control module
Batteries: One (1) 9V alkaline battery installed in the battery module ANR
Battery Life: Operates 40 hours continuous until the red low battery light
turns on. At that point 4 to 8 hours of ANR operation remains.
Fail-Safe Mode
If battery power is too low for normal ANR operation or if the power switch
is in the off position, communications input is automatically routed to the
headset receivers.
General
Cordage
Straight cord from headset to battery module, 5.5ft (66”)
Radio Connections
Receiver; ¼” diameter stereo plug