User guide

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individually. The microphone signal level is dynamically displayed as bar
and as numeric value (from-0.00-to-1.00) in the line below.
The initial MIC-level should be 05, the engine should be running, use a
headset and speak at a normal voice level to fine-tune the MIC-level.
Whenever a new MIC-level was selected, the dynamic bar indicator should
then be at about 50%.
When the microphone setup menu is left, the new value is stored.
The range of the MIC-level for standard microphones is 01 to 09.
MIC levels 10 and 11 are special settings for low microphone
levels like dynamic microphones often used in gliders.
10 is used for non-amplified Electret microphones with a 8 volt
supply voltage.
11 is for dynamic microphones only.
In the AUTO mode every 30 sec. the left microphone impedance is
measured. When using an Electret microphone and a dynamic
microphone is recognized, internal switchover to the dynamic
microphone type will take place. When using a dynamic
microphone and an Electret microphone is recognized, internal
switchover to the Electret microphone type will take place.
Microphone type switchover always affects both microphone
channels.
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