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This is accomplished in several ways. The first is by the
introduction of a metal band, and different styles of foam inside the ear
cuffs which disperses ambient noise.
This alone reduces noise by 2 db's. Then by using an electronic noise
canceling microphone noise is reduced by an additional 30 db's.
According to Tim Bruno President of RAD this "virtually eliminates wind and
engine noise during ultralight aircraft pilot to pilot conversations or
transmissions over aircraft band radios."
The intercom box which is the heart of the system allows
pilots to control their own volume plus adjust "threshold attenuation"
which in the air can help reduce another
 40
to 43 db's of noise.
This is also used to adjust for the style
of voice, that is women and children who tend to have softer voices can
adjust the system for better communication.
Also found on the box are two transmit and receive jacks.
These allow connection of an aircraft band radio, CB radio, CD player,
cell phone or in conjunction with a video camera to narrate
while shooting video.
The fourth jack allows the system to run a 12 volt
system rather than the built in 9 volt battery that would normally be used.
The T2 system is available for use as a headset with a radio, a headset
with a
removable helmet shell, or a helmet with the audio components built into
it.
RAD also builds communication systems for specific
applications. These include two helmet and intercom
systems for trikes.
One is an open faced audio equipped helmet with a flip
up visor which is available in several different tints.
The second is an
audio equipped, double visor, open face helmet with a flip front, and a
breath deflector which is ideal for winter flying.
RAD has been producing helmets and intercom systems for high
noise environments since 2000 and offers a one year warranty on parts and
labour.
For more information contact: |
