R&S FSW-K7 User Manual page 40

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R&S FSW-K7
4.7.4.6 Reference Trace, Reference Line and Reference Level
Reference trace
The calibration results are stored internally on the R&S FSW as a reference trace. For
each measured sweep point the offset to the expected values is determined. If normali-
zation is activated, the offsets in the reference trace are removed from the current
measurement results to compensate for the inherent distortions.
Reference line
The reference line is defined by the
"External Generator" > "Source Calibration" settings. It is similar to the
Level
this reference line only affects the y-axis scaling in the diagram, it has no effect on the
expected input power level or the hardware settings.
The reference line determines the range and the scaling of the y-axis, just as the refer-
ence level does.
The normalized reference trace (0 dB directly after calibration) is displayed on this ref-
erence line, indicated by a red line in the diagram. By default, the reference line is dis-
played at the top of the diagram. If you shift the reference line, the normalized trace is
shifted, as well.
Shifting the reference line (and normalized trace)
You can shift the reference line - and thus the normalized trace - in the result display
by changing the
Figure 4-7: Shifted reference line
User Manual 1173.9240.02 ─ 23
defined in the "Amplitude" settings. However, as opposed to the reference level,
Reference Position
Receiving Data Input and Providing Data Output
Reference Value and Reference Position
or the Reference Value.
Measurement Basics
in the
Reference
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