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If the user defined norm is activated, in the section Start → Background recording, a mode
including the dominant frequency must be also activated (Subsection 5.1.4).
Figure 5.4.6. Configuration of the alarms causing a warning.
a)
b)
Figure 5.4.7. a) Setting of the background recording; b) Warning message caused by the definition of the
alarm as in Fig. 5.4.6.
