ATR833A-II / P/N 833-II (Axxx)-(Axxx)
Operation and Installation
19
Doc.-No. 01.143A.010.71e / Revision 1.00
ACT
123.450
SBY
118.275
VOX 3
Range: Off, 1 - 9
In case of very noisy backgrounds or use of uncompensated
microphones, the automatic VOX functionality may not work satisfyingly.
In these cases, it is possible to deactivate the VOX automatism with
VOX: 0, and to use an external intercom-switch.
2.5.4 INT
– Volume Intercom
By pressing three times the SET button, the volume of the intercom can
be adjusted with the VOL/SEL turn knob.
The intercom functionality is the onboard crew-internal communication
for multi-seater aircraft. A change in the intercom volume level also
changes the volume of the sidetone. The sidetone is an audible feedback
of the own voice to the headset, i.e. you hear yourself speak. This
feature supports a natural speech behavior.
The intercom can be activated in two ways:
Automatically, i.e. whenever someone speaks into a microphone
(i.e. voice activated intercom = VOX, see chapter 0).
Manually, i.e. by use of an external intercom switch.
ACT
123.450
SBY
118.275
INT 3
Range: 0
– 20
2.5.5 STL
– Volume Sidetone Left
The sidetone is a self-hearing or back-hearing function during
transmission. The audio signal picked up by the microphone is fed
directly to the headset, which is normally perceived as pleasant. In this
menu point the volume of the sidetone for the left seat can be adjusted.
