Rohde & Schwarz R&S SMW200A - About Leveling; Querying Information on the Baseband Power Levels; Required Options

Monitoring Signal Characteristics
R&S
®
SMW200A
621User Manual 1175.6632.02 ─ 30
See Chapter 11.10, "Creating Screenshots of Current Settings", on page 702.
3. Use on of the standard file transfer methods to access the user directory of the
instrument. Transfer the file to a PC.
See Chapter 11.9, "How to Transfer Files from and to the Instrument",
on page 696.
4. Print the file content.
9.2 Querying Information on the Baseband Power Levels
The R&S SMW fulfills the requirements for a flexible configuration of signal power at
different processing points of the signal flow. This great flexibility, however, leads to a
variety of interdependent parameters grouped in different dialog boxes. This section
focuses on the "Baseband Powers" measurement functionality provided for retrieving
the power and peak power of the digital baseband signal at configurable acquisition
points. E.g., at the input or the output of the fading block, the I/Q output connectors,
etc. The provided measurement results are based on signal measurement with differ-
ent acquisition methods.
The Chapter 9.2.2, "About Leveling", on page 621 provides general information on
leveling as well as a background information on the leveling principle used in the
instrument. Understanding of this principle a prerequisite for the correct interpretation
of the displayed measurement results.
Refer to Chapter 9.2.4, "How to Query Information on the Baseband Power Levels",
on page 630 for examples on using the baseband power measurements.
9.2.1 Required Options
The minimum equipment layout for using this function includes
●
Option Standard Baseband Generator (R&S SMW-B10) per signal path
●
Option Baseband main module, one/two I/Q paths to RF (R&S SMW-B13/-B13T)
9.2.2 About Leveling
The instrument provides different signal routing possibilities, involving also signal sum-
ming and enabling of power offsets.
This section does not focus on all possible alternatives but rather on the principle of
signal leveling. For detailed description refer to:
●
Chapter 4.2, "Possible Ways to Configure the Signal Flow", on page 110
●
Chapter 4.5, "Signal Routing Settings", on page 154
●
Chapter 4.2.2, "Using the System Configuration Capabilities", on page 111
●
Chapter 4.4.2, "I/Q Stream Mapper Settings", on page 132
●
Chapter 5.14, "Shifting and Boosting the Baseband Signal", on page 408
Querying Information on the Baseband Power Levels