Rohde & Schwarz SMW200A - User Correction Settings

Configuring the Signal in the RF Domain
R&S
®
SMW200A
530User Manual 1175.6632.02 ─ 16
●
Fill the table automatically with linearly interpolated values, calculated based on
value range and step size.
●
Acquire the real frequency response characteristics of the used component by
R&S NRP power sensor.
Using power sensor for collecting correction data
Consider the following when using R&S NRP power sensors to collect correction val-
ues:
●
Correction values can be acquired at any time, irrespective of the modulation set-
tings of the generator.
●
Measure the level directly at the input of the DUT.
●
Use the internal correction functions of an R&S NRP power sensor to increase the
accuracy and optimize the RF level.
●
Use S-Parameter to consider the impact of any two-port device like an adapter
between the signal generator and the sensor input.
Interactions and characteristics
Active "User Correction" is effective in all operating modes.
However, user correction cannot be activated simultaneously with absolute level com-
pensation based on user-defined frequency response values. These functions exclude
each other; only one of them can be used at a time.
See user manual R&S
®
SMW-K544 User-Defined Frequency Response Correction.
The RF output level (Level
RF
) is the sum of the level value and the correction for the
particular frequency:
Level
RF
= "Status bar > Level" + "UCOR"
You recognize that user correction is enabled by the status indication "UCOR" in the
status bar.
7.8.3.1 User Correction Settings
Access:
1. Select "RF" > "RF Level" > "User Correction".
2. Select "User Cor. Data > navigate to the file *.ucor > Select".
3. Select block diagram > RF A > "On".
Improving Level Performance