Telex Echelon 100 User Instructions
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Telex Echelon 100 User Instructions

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Telex
®
User Instructions
Echelon
100 Headset

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Summary of Contents for Telex Echelon 100

  • Page 1 Telex ® User Instructions Echelon 100 Headset...
  • Page 2 Patented Ball and Socket Jointed Boom Rotates Tension Overhead for Mic Adjust Knob Placement on Either Side of Head Volume Control Replaceable Ear Cushions Flexible Boom Permits Precise Mic Placement Noise Canceling Electret Microphone Echelon 100 Reference View Figure 1 Page 1...

  • Page 3: General Description

    GENERAL DESCRIPTION The Telex Echelon 100 is a medium-weight noise-reduction headset with amplified, noise-canceling, electret microphone. DESIGN FEATURES (See Figure 1) Comfortable foam-filled headband pad and ear cushions. The headband pad evenly distributes the headset weight, with no pressure points, for maximum wearer comfort.

  • Page 4: Operation

    OPERATION Headband Pressure Adjustments There are three pressure settings. Increasing the pressure will improve the seal between the earcup and the head for greater noise reduction. To change the pressure setting, remove the headset and fold the earcup inward as shown, then rotate the adjustment knob to the desired setting.
  • Page 5 Microphone Gain Adjustment The microphone gain has been factory-adjusted to the nominal level required for FAA certification, and it should normally not require readjustment. Readjustment by a qualified avionics technician is recommended. To access the gain trimmer, insert a small flat-blade screwdriver through the access hole in the mic assembly. Clockwise rotation of the trimmer increases gain.
  • Page 6 Exploded View Parts List (See Figure6) l l a l l a t i t " 4 t i t " 2 p i l i l e • 8 t r i 3000535J Page 5...
  • Page 7 Figure 6 Page 6...

  • Page 8: Specifications

    SPECIFICATIONS Receivers: Type: Dynamic Frequency Response: 100 Hz - 3.5 kHz Sensitivity: 95 dB SPL minimum (1 kHz, 1 mW input) Impedance (at 1 kHz): 150 ohms (receivers wired in parallel) Microphone and Amplifier: Element Type: Noise-canceling electret Frequency Response: 100 Hz - 3.5 kHz Sensitivity: -48 ±6 dB (ref:1 V/ µbar at 1 kHz with 12 Vdc supply voltage and 470-ohm DC , 150ohm AC load).
  • Page 9 38109-810 Rev C 7/02...

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