The Spectrum Application
R&S
®
FPC
106
User Manual 1178.4130.02 ─ 07
If the unit of the transducer is dBμV/m or dBμA/m, this unit is also used for the
R&S
FPC level display. This means that both the level axis of the diagram and the
level at the marker position are assigned the unit of the transducer. If dBμV/m is
selected as the transducer unit, a switch to absolute level indication in V/m is possible.
1. Press the "Ampt" key to open the amplitude menu.
2. Select the "Unit" menu item to open the unit menu.
3. Select the unit you need (note that you can select only units compatible to the
transducer factor).
The R&S
FPC applies the selected unit.
Tip:
If you are using a transducer with the unit dBμA/m, it is not possible to select
another unit. Level indication is entirely in dBμA/m.
Defining the reference level
The transducer shifts the trace by its value as a function of frequency. Positive trans-
ducer values increase the level, negative values reduce it. To ensure that the trace is
always within the diagram, the R&S
FPC adjusts the reference level accordingly. The
reference level is shifted by the maximum transducer value in the positive or negative
direction.
Frequency range of transducer
If the set frequency range is wider than the span in which a transducer is defined, the
R&S
FPC assumes the transducer values outside the defined range to be zero.
Data sets containing transducer factors
The R&S
FPC stores data sets together with any transducer factors that may have
been active for the measurement in question. When such a dataset is recalled, the
associated transducer factor(s) are switched on as well. Transducer factors recalled as
part of a data set do however not appear in the list of transducer factors.
14.5
Bandwidth Configuration
Access
: "BW"
Access
: "Setup" > "Config Overview" > "Bandwidth" (selected settings)
Remote commands to configure the bandwidth:
●
A spectrum analyzer has two main filters, the resolution filter and the video filter, that
affect the measurement results. The bandwidth of these filters should be selected
based on your measurement task.
Bandwidth Configuration
