FEBRUARY 2016 AviationPros.com 23
RAMP TECHNOLOGY
entire industry, the response was positive. In
fact, across the industry, the move to wireless
communication technology is improving and
becoming standard operating procedure.
Today, David Clark's 9900 headset series
uses Digital Enhanced Cordless Telecom-
munications (DECT) radio technology to
provide communication for up to four users
per gateway and a 300 foot range.
DECT, as opposed to more popular com-
mercial wireless technologies like Bluetooth,
has a much stronger range and is preferable
for networks with multiple users – not just
one-to-one communication. In addition,
DECT has been designed to work with a
number of international telecommunications
formats including ISDN, GSM and PSTN.
Outside of the radio technology, today's
wireless headsets include noise-cancelling
features for both speaker, through noise-can-
celling microphones and microphone guards,
and listener, through well-insulated ear
covers and in-ear noise cancellation via a
microphone in the earpiece the picks up
ambient noise and cancels it out to the listener
with a soundwave of its own. It's an obvious
necessity, but a necessity nonetheless, that any
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Just as important as
being heard is that his
headsets are reliable
at normal speech
levels. Speech is
undeniably faster than
using hand signals,
but when ramp crews
need to shout , they
might as well not even
try speaking .