David Clark ENC Owner's Manual
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David Clark ENC Owner's Manual

Electronic noise cancelling headsets
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ELECTRONIC
NOISE CANCELLING
HEADSETS
OWNERS MANUAL

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Summary of Contents for David Clark ENC

  • Page 1 ELECTRONIC NOISE CANCELLING HEADSETS OWNERS MANUAL...

  • Page 2: Table Of Contents

    A guarantee made by the David Clark Company assumes full responsibility for the quality and the performance of the product, to your satisfaction; it is supported...

  • Page 3: Description & Technical Information

    CANCELLATION DESCRIPTION & TECHNICAL INFORMATION: How it works. David Clark’s Electronic Noise Cancellation (ENC) headsets feature the latest advances in electronic noise cancellation technology. They’re specially designed for pilots of aircraft which generate noise at lower frequencies. Headsets relying on passive noise control methods alone cannot suppress low frequencies as effectively as mid and high range frequencies.
  • Page 4 Passive versions of these headsets already exhibit excellent noise reduction ratings (NRR). Test measurements indicate an increase in attenuation at lower frequencies when ENC is switched on. At the present time there is no ANSI test standard for independent measuring of the effectiveness of Electronic Noise Cancellation.

  • Page 5: Operation & Instructions

    A switch is provided inside the battery compartment (see Fig.1) to control the Auto Shut Off feature. The XL-9V is shipped from the factory with the switch in the DISABLE position, which will provide continuous power to the ENC system whenever the power switch is on.

  • Page 6: Power Indicator

    To Enable Auto Shut Off The ENABLE position provides automatic shut off of power to the ENC system if the headset is unplugged or the aircraft audio system power is turned off. To operate the Auto Shut Off switch remove the battery, and using a small pointed tool gently move the switch to the desired position.
  • Page 7 Battery Insertion and Removal CAUTION! Improper battery insertion may damage unit. To remove the battery compartment cover, press down lightly on the recess and slide the cover back. To install the battery compartment cover, align with the recess in the battery compartment and slide the cover forward until it snaps into position (see Fig.

  • Page 8: Features - H-10 Series

    GENERAL AVIATION H- 10 SERIES HEADSET Headband Locknut Features: When the headset is adjusted comfortably, the locknut can be tightened for consistent Headpad Assembly fit to your head. P/N 40688G-36 Undercut Comfort Gel Ear Seals P/N 40863G-02 Volume Controls Microphone Protector Dual volume controls.

  • Page 9: Features - H10-66Xl Series

    MILITARY H10-66XL SERIES HEADSET Headband Locknut When the headset is adjusted comfortably, the locknut Features: can be tightened for consistent fit to your head. Headpad Assembly P/N 18900G-48 High/Low Impedance Select Switch HIGH Undercut Comfort Gel Ear Seals P/N 40863G-02 Dynamic Microphone P/N 09168P-20 Volume Control...

  • Page 10: Features - H10-76Xl And H10-76Xp

    MILITARY H10- 76XL & H10- 76XP (LOW IMPEDANCE ENC HEADSETS) Features: Headband Locknut When the headset is adjusted comfortably, the locknut can be tightened for consistent fit to your head. Headpad Assembly P/N 40688G-36 Undercut Comfort Gel Ear Seals P/N 40863G-02...

  • Page 11: Accessories - Power Options

    ACCESSORIES – POWER OPTIONS ‘X’ Series modular design allows pilots the option of using one headset with either Portable Battery Powered Modules XL (with a communication cord required) or the Panel Mount Module XP (which is hard wired to the audio and power circuits of the aircraft).
  • Page 12 Softer, more supple and form fitting with an “undercut” shape that provides more room for your ears. The larger, yet lighter, ear seals cradle the ears with unsurpassed comfort. Compatible with all David Clark Company headsets. P/N 40863G-02 (1pair) NSN 5965-01-516-8082 Microphone Protector Cloth mic-muff with drawstring.

  • Page 13: Maintenance & Cleaning

    2. Use of ear seals, other than those supplied by David Clark Company, may adversely affect both your comfort and the headset’s overall performance.

  • Page 14: Customer Service

    Thank you for purchasing our product. David Clark Company makes every effort to prevent problems and the need for repairs. Still, if you do experience a problem with your David Clark product, qualified representatives are on hand to answer your questions and provide the best Customer Service in the industry.

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