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    Helmet Communications Systems Official Installer Lightspeed Zulu H-Mod By utilizing advanced technology Lightspeed carefully engineers its products to create a quiet environment for its users while providing maximum comfort and communication. Now with the Zulu H-Mod ANR system, which is specifically designed for installation in helmets, Lightspeed is offering that same technology and experience to customers who wear helmets. The most awarded headset company on the market, Lightspeed is committed to making flights both safe and enjoyable for its customers whether they use headsets or helmets. Shop Lightspeed Now Helmet Conversion Bose A20 ANR The Bose A20 ANR headset conversion is available for installation in new of existing flight helmets. The wiring has been converted to the standard flight helmet wiring configuration so that it will fit in many flight helmets, including HGU-33, HGU-55, HGU-68, HGU-56, HGU-84, etc. The assembly comes with Bose A20 ANR earphone modules, and separate wiring branch for U-172/U microphone jack plug with grommet for helmet installation and compatible with your helmet's current boom microphone. Experience Bose quality in the comfort of your helmet. Shop Bose Now Helmet Communications Configuration
    When choosing a flight helmet communications configuration, it's important to consider several factors. This page covers some common flight helmet communications configurations, but if you don't see a configuration that will work for your application, or you have a special request, please call or send an email. We can locate almost any communications product and routinely work with a number of manufacturers to have products custom-made. We've worked with customers to provide flight helmet communications solutions for helicopters, aircraft, custom intercom systems, portable/handheld radios, warbirds, ultra-lights, boats, high-altitude balloons, and many more applications. We look forward to providing the communications solution you need.

    Here are some things to consider before choosing a helmet configuration:

    Military and civilian radios and intercoms have different impedances, with military aircraft using a single U-174 plug and most general aviation fixed-wing aircraft using a dual plug system. Warbirds have often been converted to civilian radios/intercom systems.

    • Will the helmet operate with military or civilian impedance radios/intercoms?

    • Does the aircraft have a single or dual plug system?

    • Will the helmet have standard civilian impedance earphones or will it have Active Noise Reduction (ANR) earphones?

    • Will the helmet be used with a boom microphone, oxygen mask, either, or both?
     Earphones Standard earphones are available in either military or civilian impedance. They can be installed in all ear cup types and operate with all types of helmets, boom microphone, and oxygen mask configurations. Active Noise Reduction (ANR) earphones are more expensive than standard earphones but offer a much more enjoyable flying experience, especially in noisy war-bird aircraft. We fly with ANRs in our helmets and headsets and believe they are well worth the investment! ANR modules come in either military or civilian impedance. ANR modules are compatible with all boom microphone and most oxygen mask configurations (depending on ANR configuration). Read the oxygen mask communications section for details. The ANR kit comes with everything needed for installation into plastic ear cups (ear cups not included). Installation does require soldering. Instructions are provided, but FlightHelmet.com also offers ANR installation services. The ANR modules are powered by a 9-volt power source and have three power options available. ANR kits come with either a battery box or a battery bag. A battery box with a clothing clip. If using the integrated cord upgrade, the battery box connects at the end of the integrated cord. A battery bag, which can be mounted on the rear of the helmet with Velcro. An optional aircraft panel-mounted power supply. Shop Earphones Active Noise Reduction (ANR) Flight Helmet Cords There are three standard configurations for flight helmet cords: cords with a single U-174 plug, cords with dual General Aviation (G/A) plugs, and CX-4708 cords. Most civilian general aviation fixed-wing aircraft (and many warbirds) use dual G/A plugs. Most military fixed-wing aircraft and helicopters (both military and civilian) use a single U-174 plug. The CX-4708 cord is commonly used in conjunction with an Oxygen Mask and CX-4707 cord, but can also be used with a boom microphone drop-down cord. Shop Flight Helmet Cords Single Plug (U174) & Helmet Communications Cord Dual G/A Plugs & Helmet Communications Cord CX-4707 & Oxygen Mask, or Microphone & Drop Cord Flight Helmet Volume Control Cords Boom Microphones We offer a variety of microphones suitable for both military and civilian communications. For microphone booms, we carry wire, half-flex, and full-flex booms. These booms can be mounted to helmets in three ways: helmet mounted, bayonet receiver direct mounted, or removable bayonet receiver mounted. Additionally, we have several cord options available. Boom Mounting Options Helmet Mounted Microphone Boom Mounted directly on helmet shell. Bayonet Recevier Direct Mount Mounted directly on the bayonet receiver itself. Removable Bayonet Receiver Mount Mounted onto a bayonet assembly that inserts into the bayonet receiver. Microphones Microphone Cords Microphone Parts Oxygen Mask Communications There are three standard communications setups for helmets that will be used with oxygen masks. Each of these options facilitate the use of a boom microphone in addition to an oxygen mask, but some configurations are easier to switch between boom mike and oxygen mask than others. In all three configurations, the oxygen mask uses a standard military impedance M-101 microphone. If the mask will be used with civilian impedance communications, choose an amplified microphone cord option. All options require either cast bayonet receivers or lightweight bayonet receivers be installed on the helmet.
    CX-4708 Cord Option:

    This option uses a CX-4708 communications cord in the helmet and a CX-4707 variant communications drop-down cord on the oxygen mask. This is a standard configuration for most military helmets fitted with oxygen masks.

    FlightHelmet.com offers the following CX-4707 cords for use with oxygen masks and flight helmets with CX-4708 cords installed:

          CX-4707 with U-174 plug (military impedance)
          CX-4707 with U-174 plug (with amplifier for civilian impedance)
          CX-4707 with Dual G/A plugs (with amplifier for civilian impedance)
          CX-4707 with U-75 plug (with amplifier for US Navy impedance)

    An in-line impedance converter cord for existing CX-4707 cords is available:

          Microphone cord impedance converter cord

    Note: For helmets with ANR modules, an integrated communications / power cord is not available for this oxygen mask communications option. FlightHelmet.com recommends either a non-integrated power cord (included with ANR kit) for use with battery box or aircraft panel mounted cord, or the helmet mounted battery bag.

    Standard Helmet Cord Option:

    This option uses a helmet communications cord with built-in drop-down cord and the oxygen mask uses a microphone cord to plug into the helmet. The configuration is compatible with:

          Military and civilian microphones and earphones
          Single U-174 Plug and Dual G/A Plugs
          Standard earphones and ANR earphones (battery pack, box, and panel mounted power options)
          Oxygen Masks and Boom Microphones

    To switch between boom microphone and oxygen mask microphone, simply unplug one microphone cord from the helmet and plug in the other one. An optional helmet mounted microphone switch is also available here.

    The following helmet communications cords are available for this option:

          Single U-174 plug, straight cord
          Single U-174 plug, coiled cord
          Dual G/A plugs, straight cord
          Single U-174 plug with ANR plug, straight cord
          Dual G/A plugs with ANR power plug, straight cord

    The following oxygen mask microphone cords are available for this option:

          Standard microphone cord (military impedance use)
          Amplified microphone cord (civilian impedance use)
    An in-line impedance converter cord for existing microphone cords is available:
          Microphone cord impedance converter cord


    Selector Switch Cord Option:

    This option is a cross between the CX-4708 helmet cord option and standard helmet cord option. The main point of this configuration is that it uses a drop-down cord with selector switch for microphone source built into the plug. The helmet uses a CX-4708 cord and the oxygen mask uses a microphone cord to plug into the plug at the end of the drop down cord coming from the helmet. Boom microphone or oxygen mask microphone can be selected with the flip of a switch.

    The following helmet cords are required for this option:

          CX-4708 cord - used with oxygen mask or drop-down cord
          Single U-174 plug, straight drop-down cord, with microphone switch

    A cord with dual G/A plugs is not available at this time, but the following adapter cable can be used for dual G/A plug systems:

          Single U-174 plug to G/A Plugs Adapter

    One of the following oxygen mask microphone cords is also required for this option:

          Standard microphone cord (military impedance use)
          Amplified microphone cord (civilian impedance use)

    An in-line impedance converter cord for existing microphone cords is available:

          Microphone cord impedance converter cord

    Note: For helmets with ANR modules, an integrated communications / power cord is not available for this oxygen mask communications option. FlightHelmet.com recommends either a non-integrated power cord (included with ANR kit) for use with battery box or aircraft panel mounted cord, or the helmet mounted battery bag.
     Oxygen Mask Communications Cords Featured Products