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Noise cancellation technology designed specifically for helicopter and GA aircraft pilots.
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ACTIVE NOISE REDUCTION FOR ALPHA HELMETS
Our Active Noise Reduction (ANR) system offers all the benefits of high-performance noise reduction technology, with improved speech intelligibility and superb wearer comfort, and is a proven method for combating the unwanted, and often dangerous levels of noise experienced in modern civil and commercial helicopters and other aircraft.
The functional control module includes an auxiliary audio input with intercom/Aux priority switching, ideal for dedicated GPS and traffic warning systems. It also features a customisable audio prioritisation control with 'mute' and 'mix' settings, and flexible power circuitry with auto-on that switches to and from battery power and aircraft power. There are independent left and right volume controls, together with a separate volume control for telelphone communications through the Bluetooth function, which allows a wireless connection to a mobile phone to make and/or receive telephones calls.
The Alpha range of pilot helmets (Eagle and Alpha 900) are ideally suited for our Active Noise Reduction system. The ANR modules replace the standard earphones and a new downlead is installed, which can be straight or coiled. The original passive performance of the helmet as well as the fit of the helmet are unaffected by the installation of the ANR modules. The systerm is typically designd to be powered from the aircraft using a 6 Pin (Redel) plug or 8 Pin (Lemo) plug. There is a battery back-up system (2 x AA Batteries) for powering the ANR for a short period of time.
CONTROL BOX FEATURES
- Bluetooth connection for mobile phone, communication
- Active noise reduction (ANR) rated at 30dB
- Auxiliary input 3.5mm audio jack
- Stereo / mono switch in battery pack
- Connection mode priority switch for safety
- Auto-off when disconnected from aircraft
BLUETOOTH
To pair a mobile phone to the system, simply press and hold the Bluetooth (phone symbol) button for a few short seconds to start the search. Make sure the Bluetooth function on the mobile phone is set to scan. Within a few seconds, the system (BT-ANR) will appear on the available devices list. Tap on BT-ANR to complete the pairing process. Once connected, telephone calls can be made and/or received through the comms system.
MODE SWITCH SETTINGS
[A] Intercom Priority
When intercom is busy, Bluetooth and AUX will be attenuated.
[B] Intercom, Bluetooth, and AUX
All three channels are open.
[C] Intercom Only
Only intercom is on. Bluetooth and AUX are both off.
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