ATO EQ-Link system, Operation Manual

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Operation Manual
ATO Aviation Inc Page 13
5.6. EQ-Link Communications Settings
The EQ-Link will function at peak performance when the aircrafts
communications settings can be adjusted to suit. The EQ-Link acts as a cable
replacement for standard Headsets and as such will receive any imperfections
in the aircraft communications system. The extra quietness of the EQ1 system
means that some electrical noises that may not have been heard with other
headsets may now become audible.
Advanced features can be activated on the EQ-Link to further assist the noise
reduction performance of the system. These modes are activated by 3 fast
clicks of the STATUS button on the EQ-Link. These modes will be announced
on the paired headset for ease of use and understanding of the functions
performed.
Standard Modes include improved noise cancelling DSP algorithms.
The graph below shows a cockpit recording in a typical light aircraft. It
highlights the difference with noise reduction off to the left and noise reduction
on to the right. The dense bits in the middle are aircraft noise.