Rohde & Schwarz CMW500 - Measuring an RF Signal

Getting Started
R&S
®
CMW500
29User Manual 1173.9463.02 ─ 06
Fig. 2-3: SSB modulated generator signal
To tap the resulting RF generator signal at the RF 1 COM connector, proceed with 
Measuring an RF Signal.
ARB generator
The GPRF dual-tone signal is an example for a real-time generator signal. As an alter-
native, the GPRF generator application provides the arbitrary ("ARB") baseband mode.
The ARB generator signal is based on a "waveform file" which is loaded and processed
at runtime. For details refer to the "GPRF Generator" description.
2.3.2 Measuring an RF Signal
The R&S CMW500 provides various general purpose and network-specific measure-
ments. All measurements are controlled in an analogous manner. The following example
uses the General Purpose RF (GPRF) Power measurement.
The GPRF Power measurement measures a series of power steps at (possibly) different
powers and frequencies and performs a statistical evaluation. As a simple example we
can measure the RF signal generated by the GPRF generator of the R&S CMW500. The
signal is tapped at the RF 1 COM connector and measured at RF 2 COM.
To perform the measurement,
1.
Configure the GPRF generator as described in chapter 2.3.1, "Generating an RF
Signal", on page 27.
2. Connect a coax cable between the two RF connectors RF 1 COM and RF 2 COM at
the front panel of the R&S CMW500 to ensure that the generator signal is fed to RF
2 COM.
Trying Out the Instrument