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®
Tele x
Operating Instructions
Echelon
TM
ANR 150 Headset
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Figure 1 Note: See page 7 for available replacement parts.
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General Description The Echelon ANR 150 is a medium-weight aircraft communications headset. It features electronic noise reduction circuitry for improved reduction of aircraft motor and wind noise. The Echelon ANR 150 also features extended response receivers for improved sound reproduction from the aircraft radio and entertainment system. The Echelon ANR 150 noise reduction system may be powered from either a battery module or an aircraft power module. The battery module is designed for portab
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Microphone Bias Voltage Requirements The boom microphone requires a bias voltage of 8-16 VDC through 300 to 1000 ohms. If you are uncertain whether your avionics equipment meets this requirement, consult the avionics equipment manufacturer. Optional Aircraft Power Supply Module The power supply module is designed for use in negative ground electrical systems only. Do not attempt to use with positive-ground electrical systems. Installing a Battery in the Optional Battery Module The battery module
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Headset Operation 1. Connect the headset as shown in Figure 2. Set the MONO/STEREO headphone switch to match the type of sound system in your aircraft. Figure 2. Headset Connection 2. Rotate the entire boom overhead to wear the microphone on either the right or left side of the head. 3. For best noise cancellation, position the microphone as close to the mouth as possible and speak in a normal voice (Figure 4). 4. To activate noise reduction, plug the headset into the battery or power module.
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Figure 3. Headband Pressure Adjustment 7.Volume Adjustment Procedure The following procedure is recommended to assure that there will be sufficient radio volume in the event of a loss of power to the headset. a.Turn the headset power off. b.Set the headset volume controls to the middle of their range. c. USING THE AIRCRAFT RADIO VOLUME CONTROL, adjust headphone volume for clear communication under typical operating conditions. d.Turn on the headset and adjust the volume controls ON THE HEADSET t
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Specifications Receivers and Noise Reduction Circuits: Reciever Type: Dynamic Frequency Response: 50 Hz - 1.5 kHz Sensitivity (Max. Volume): 95 ± 5 dB SPL (1 kHz, 1 mW input per earcup side) Impedance (Max. Volume): Stereo: 300 ohms per side, Monaural: 150 ohms Stereo/Mono: Switch in cord allows Stereo or Monaural headset operation. Noise Reduction Power Consumption: 50 mW nominal, 1.5W peak per side (dependent on noise level) Microphone and Amplifier: Element Type: Noise-canceling amplified el
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General: Cordage: Headset: Straight Y cord, 6 ft (1.8 m), Aircraft Power Module: Straight cord, 3ft (0.9 m) Headset Connections: Power: 3.5 mm 2 conductor right angle plug for connections to the battery module or aircraft power module. Microphone: 0.206" diameter plug (PJ-068 equivalent) Receiver: PJ-055 equivalent plug for receivers Stereo/mono selector switch in the cord Battery Module Connector: 3.5 mm 2 conductor jack for connection to the headset. Aircraft Power Module Connectors: Input p
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LIMITED WARRANTY — VALID ONLY IN UNITED STATES AND CANADA TELEX Communications, Inc. (“Telex”) warrants to the user, who originally purchased the product delivered with this card, that the product will be free from defects in material and workmanship for the following periods after such date of purchase: Material 36 months, workmanship 36 months. Telex will, at its option, repair or replace, free of charge, such defective products subject to the following conditions: 1. Delivery of the product o
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CUSTOMER SERVICE For information or technical assistance, call or write to Telex at: Customer Service Department Telex Communications, Inc. 12000 Portland Ave. So. Burnsville, MN 55337 U.S.A. (952) 884-4051 When returning equipment for repair, please enclose an explanation of the problem. And, if the equipment is covered under warranty, please enclose a copy of your proof of purchase. The equipment must be accompanied by documentation stating your name, return address, and telephone number. Retu
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Notes
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38110-010 Rev B 4/02
