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R&S FSQ Signal Analyzer - Rohde & Schwarz

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R&S <strong>FSQ</strong> Instrument Functions<br />

Fig. 4.13 Display of the complementary cumulative distribution function (CCDF)<br />

<strong>Analyzer</strong> Mode<br />

Alternate to the histogram display of the APD the Complementary Cumulative Distribution<br />

Function (CCDF) can be displayed. It shows the probability of an amplitude<br />

exceeding a specific value.<br />

For the APD function the x-axis is scaled in absolute values in dBm, whereas for the<br />

CCDF function the x-axis is scaled relative to the MEAN POWER measured.<br />

Definitions:<br />

Crest factor = peak voltage to rms<br />

CCDF = complementary cumulative distribution function<br />

During an active statistic measurement, the functions FULL SCREEN,<br />

SPLIT SCREEN and selection of the active diagram via the SCREEN A / SCREEN<br />

B hotkeys are disabled.<br />

4.110 Operating Manual 1313.9681.12 - 01

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