General Description
R&S
®
CMW-B400B/-B405A
21
User Manual 1176.8116.02 ─ 04
Fig. 3-9: Multitone result diagram
The bar graph displays the audio levels measured at the frequencies of the individual
test tones. The labels of the individual bars correspond to the numbers of the test
tones in the generator settings.
The audio levels can be displayed either as dB values, relative to the level of a
selected test tone or as absolute levels. The current setting is displayed at the top. You
can configure it via the softkey/hotkey combination "Display Multitone" > "Result Mode"
or via the multitone settings of the measurement, see
To switch between the table view and the diagram view, use the softkey/hotkey combi-
nation "Display Multitone" > "View Diagr./Table".
Fig. 3-10: Multitone result table
3.4.3 FFT Noise Results
For an FFT noise measurement, an audio signal consisting of several thousand sine
wave test tones is generated, transmitted and analyzed. All test tones have the same
level and equidistant frequencies covering the entire spectrum up to 21 kHz. The crest
factor of the noise signal is very low.
Measurement Results
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