Specifications; Replacing The Battery - Flightcom Denali D50ANR Operation Manual

RePlACINg THe BATTeRy

To install or replace the ANR battery, open the battery door by sliding the door in a downward
motion until it unlatches and lift up as shown in diagram A.
Slide the 9-volt battery in with the larger battery contact on the bottom. If you put the battery in
upside down, it will not activate. See diagram B.
Battery life is dependent on the ambient noise in the aircraft, but should provide a minimum of
20 hours of continuous use.
CAUTION: Bias voltage supplied to the microphone must come from voltage and resistance
ranges specified below. Voltages supplied in excess of those stated in the specifications can
cause microphone failure and void the warranty. The mic audio signal is present between the
ring and barrel of the mic plug; tip is reserved for transmit keyline.
Stereo/Mono Switch

SPeCIfICATIONS

Shielding
Weight
Temperature Sensitivity
Battery Life
Sensitivity(@1mW in dBspl)
Frequency Response
Impedance
Total Harmonic Distortion (@1kHz)
Maximum Power Input
Noise Reduction Rating
Type
DC Bias Voltage
Supply Source Resistance
Frequency Response (±6dB)
Sensitivity (@ 114dBspl*)
Noise Rejection Ratio (@1kHz)
Total Harmonic Distortion (@ 1kHz) <0.3%
Impedance
Maximum Speech Level
Maximum Ambient Noise Level
*Sensitivity measurements referred to 0.0002 ubar (dynes/cm2) @ 1kHz. Microphone
measurements made with 10-volt supply with a 1000 ohm resistor.
Contact Flightcom for the most current ANR specifications.
To Order flightcom Accessories: Call: 1-800-432-4342
A
Large Contact on Bottom
D50ANR - Stereo, Active Noise Reduction
D30SP - Stereo, Passive
D30MPH - Mono, Passive Helicopter w/U174 plug
Denali Passive
Full floating
w/independent ground
11.0 ounces
Not to exceed 156°F
Not applicable
104dB
90Hz—20kHz
300 ohms stereo/ch.—150 ohms mono
<.15%
250 mW
21dB
Noise canceling electret condenser
w/constant-gain preamp
8-16 volts
220-2200 ohms
420Hz-6.4kHz
1.3V
-46dB
500 ohms
112 dBspl*
132 dBspl*
B
Denali ANR
Full floating
w/independent ground
12.9 ounces
Not to exceed 156°F
20 hours of continuous use