6 MEASUREMENT DATA ANALYSIS
184
Table 6.3 Bandwidth parameters
Parameter
Description
Symbol Definition Formula
Bandwidth BW The difference between the higher
and lower cutoff frequencies
F2 – F1
Center
Frequency
cent The midpoint between the higher and
lower cutoff frequencies
(F1+F2)/2
Lower Cutoff
Frequency
low The lower frequency point of the
intersection of the bandwidth cutoff
level and the trace
F1
Higher Cutoff
Frequency
high The higher frequency point of the
intersection of the bandwidth cutoff
level and the trace
F2
Quality Factor QThe ratio of the center frequency to
the bandwidth
Cent/BW
Loss loss The trace measured value in the
reference point of the bandwidth
search
-
To enable/disable bandwidth search function, use the
following softkeys:
Markers > Marker Math > Bandwidth Search > Bandwidth
Search
Set the bandwidth search type by softkeys:
Markers > Marker Math > Bandwidth Search > Type
The type and the softkey label toggle between Bandpass
and Notch settings.
To set the search reference point, use the following
softkeys:
Markers > Marker Math > Bandwidth Search > Search Ref
To
The type and the softkey label toggle between Max and
Marker settings.
To enter the bandwidth value, use the following softkeys:
Markers > Marker Math > Bandwidth Search > Bandwidth
Value
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