Pilot's Operating Handbook
Section 7
Description
Edition 0 - March 05, 2019
Rev. 1
Page 7.11.7
O
2
smart mike mask
The two cockpit masks, O
2
smart mike masks, are equipped with a system that
detect
s when a communication is made operating one of the push-to-talk buttons. It
activates a noise reduction system that attenuates the oxygen flow noise in the
headsets.
Noise reduction function operates when the switch located on O
2
connecting line is
set to ON.
Figure 7.11.5 - Noise reduction switch
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