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RA315 IHS delivers reliable clear voice communication in Main Battle Tanks (MBT), Armoured Fighting Vehicles (AFV) and other tracked, high-noise vehicles.

RA315 IHS. UK army 4

About RA315 IHS

The RA315 IHS is adaptable to the requirements of vehicle crews and other operators in high-noise environments who require both hearing and head protection. The headset is suspended in a ventilated soft liner that provides bump protection when a vehicle is moving over rough terrain. Optional hard helmet shells, in bump or ballistic grades, can be attached.


Active Noise Reduction (ANR) Modules


High intelligibility binaural communications


Stereo situational awareness


Optional hard helmet shells

RA315 headset technology

The mass and volume of the RA315 headset provides Passive Noise Reduction (PNR), effective at higher frequencies, while dedicated independent Active Noise Reduction (ANR) modules in each earshell deliver improved noise reduction at lower frequencies. ANR cancels unwanted signals by superimposing an identical signal in antiphase. Low-frequency noise within the earshell is detected, phase inverted and driven back via the earphone for effective cancellation.

Plug-in boom microphone

Plug-in noise-cancelling dynamic or electret flexible boom microphone options. Throat microphone or respirator adapters can also be connected.

Optional neckband

Optional behind-the-head adjustable neckband provides earcup clamping force to ensure a good ear seal that is less dependent on chin strap tightness.

Head protection options

Optional bump protection helmet provides additional impact protection over the headset soft liner. A ballistic helmet option is also available.

RA315 IHS green + soft liner v2b no background

RA315 Product Details

The RA315 IHS is a flexible three-part system comprising the headset, an optional soft liner and an optional outer shell. In some configurations the outer shell is an add-on item and, depending on the soft liner specified, there may be an optional spring-fitted neckband.

  • High noise attenuation

    Passive and Active Noise Reduction (ANR) features protect the hearing of users exposed to high levels of continuous noise; the headset achieves high levels of noise attenuation.

  • Local sound awareness and talk-through

    The user can enable talk-through to hear local environment sounds at safe levels (<85dBA), to maintain situational awareness of hazards or permit face-to-face conversations without defeating the hearing protection.

  • Helmet options

    Removable outer protective bump helmet or ballistic helmet options available in a choice of colours, that may be removed and stowed when the vehicle is operated in closed-down mode.

  • Fit and Comfort

    Contoured earshells, foam ear cushions, and soft liners for comfortable fit, bump protection and ventilation, with optional neckband and spring to optimise fit.

  • Intercom compatibility

    We offer a wide range of headset variants compatible with all popular vehicle intercom systems, supporting live or switched microphone, press-to-talk (PTT) options and Active Noise Reduction (ANR).

RA315 IHS – UK army
Additional information

Additional information

The headset downlead is factory configured and terminated into the required connector with pinout and audio levels to match the attached equipment, enabling the headset to support mono or stereo communications. There are several optional press-to-talk (PTT) switch configurations available, toggle-switch integral to earcup, or in-line with the downlead cable. The boom microphone can be permanent live, or switched via the PTT. Optional electronic talk-through features an on/off control switch mounted on the earcup. Mechanical talk-through valves are also available, which operate without power. The headset Active Noise Reduction (ANR) and optional talk-through is powered from the attached equipment (18V to 28V DC supply required). The adjustable soft liner is available in two sizes (Small/Medium and Medium/Large) with replaceable chin straps. Earcup and optional helmets have colour options including green and light stone/sand.

Optional Accessories

Other product

We develop customisable solutions tailored specifically to exact end user applications for use in tracked, wheeled vehicles, dismounted and tactical applications.

Racal Production


Our Through Life Support (TLS) solutions allow you to manage whole-life costs and extend service life by improving product availability.

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