Chapter 4 Putting into Operation
5300.9677.72 - 4.14 - EN-4
2. Select the required settings.
The table below explains the adjustable parameters.
Setting item Description
Nominal Deviation Sets the nominal deviation; a 500 Hz sinewave FM signal at nominal
level is modulated with this deviation
Value range: 40 kHz through 150 kHz (default setting 40 kHz)
The nominal level is set in the Input > Analog Input menu for the analog
inputs and/or in the Input >Digital Input menu for the AES/EBU input.
Dev. Limiter
Threshold
Sets the threshold for automatic deviation limitation
Value range: 40 kHz through 150 kHz (default setting 75 kHz)
Dev. Limiter Active Possible selections (default setting ON):
– ON: Switches the deviation limiter on
– OFF: Switches the deviation limiter off
– Clipper Only: Only the MPX peak clipper is active.
MPX Power
Threshold
Sets the threshold for automatic MPX power limitation
Value range: -5.0 through +5.0 dBr (default setting 0 dBr)
MPX Power Active Switches the MPX power limiter on or off (default = ON).
Display
a)
a) Measurement results are updated once a second.
Description
Actual Deviation Displays the currently measured deviation
Actual MPX Power Displays the currently measured MPX power
Clipped Deviation Displays the greatest difference between the clipper input and output
during the last second
Limiter Activity Displays the limiter strength
This display gives an approximate measure of how strongly the limiter is
affecting the signal.
Value range: 0.0% (= no effect) through 100%
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