Other topics about Analyzing Data
The E5071C has a feature called Bandwidth Search. This feature searches for the cutoff points on both right- and left-hand sides of the marker position on the trace.
Bandwidth (BW= high-low)
Center frequency (cent= {high+low}/2))
Q value (Q=cent/BW)
Loss (response value at the marker position)
Where high is the right-hand cutoff point frequency;low is the left-hand cutoff point frequency.
Bandwidth Search finds a point whose response value is different, by the amount defined as the bandwidth definition value, from the response value at the marker position, and identifies that point as the cutoff point.
To set the bandwidth definition value, use the following command:
:CALC{1-36}:MARK{1-10}:BWID:THROnce you have moved the marker to the appropriate position using Marker Search or some other feature, you can retrieve the results of Bandwidth Search by using the following command:
:CALC{1-36}:MARK{1-10}:BWID:DATA?
Also, you can use the following command to control whether to display the results of Bandwidth Search on the LCD:
:CALC{1-36}:MARK:BWID
You can retrieve the results of Bandwidth Search even after you have turned off the display of markers or the results of Bandwidth Search.
See Bandwidth Search.