Rohde & Schwarz FSV3000, User Manual

Page: 388 / 1489

Common measurement settings
R&S
®
FSVA3000/ R&S
®
FSV3000
388 User Manual 1178.8520.02 ─ 08
Remote command:
[SENSe:]CORRection:RECall
on page 1083
Save as Trd Factor
Uses the normalized measurement data to generate a transducer factor. The trace
data is converted to a transducer with unit dB and stored in a file with the specified
name and the suffix
.trd
under
C:\Program Files\Rohde-Schwarz\FSV3000\<version>\trd
. The frequency
points are allocated in equidistant steps between start and stop frequency.
The generated transducer factor can be further adapted using the "Transducer" func-
tion in the [Setup] menu.
For more information on transducers, see Chapter 10.5.1, "Basics on transducer fac-
tors" , on page 712.
Note: Note that the normalized measurement data is used, not the reference trace!
Thus, if you store the normalized trace directly after calibration, without changing any
settings, the transducer factor is 0
dB for the entire span (by definition of the normal-
ized trace).
Remote command:
[SENSe:]CORRection:TRANsducer:GENerate
on page 1084
Reference Position
Defines the position of the reference line in percent of the total y-axis range.
The top of the diagram is 100%, the bottom is 0%. By default, the 0 dB line is displayed
at the top of the diagram (100%).
This setting is only available if normalization is on (see " Normalization state"
on page 387).
The reference line defined by the reference value and reference position is similar to
the
Reference Level defined in the "Amplitude" settings. However, 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 normalized trace (0 dB directly after calibration) is displayed on this reference line,
indicated by a red line in the diagram. If you shift the reference line, the normalized
trace is shifted, as well.
Remote command:
DISPlay[:WINDow<n>][:SUBWindow<w>]:TRACe<t>:Y[:SCALe]:RPOSition
on page 1124
Reference Value
Defines an offset for the position of the reference line.
This setting can be used to shift the reference line and thus the normalized trace, simi-
lar to the
Shifting the Display (Offset) defined in the "Amplitude" settings shifts the ref-
erence level in the display .
Shifting the normalized trace is useful, for example, to reflect an attenuation or gain
caused by the measured DUT. If you then zoom into the diagram around the normal-
ized trace, the measured trace still remains fully visible.
Data input and output