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8
̈ Connect the audio cable to the 3.5 mm jack socket ቤ on
the operating control and to the corresponding jack
socket on your audio player.
Audio from the additional audio source and from the
intercom are heard simultaneously through the headset.
Adjusting the microphone sensitivity
The microphone sensitivity has been factory pre-set to
80
mV/Pa as per RTCA DO-214.
To change the input sensitivity of the microphone:
̈ Use a suitable slotted screwdriver.
̈ Turn the microphone sensitivity control ³ as shown.
Switching between mono and stereo mode
The mono/stereo switch ቦ allows you to switch between
mono and stereo mode, depending on the intercom system.
̈ Set the mono/stereo switch ቦ to the desired position:
– k mono
– kk stereo
ቤ
³
ቦ