Configuring the RF Signal
R&S
®
SMW200A
472User Manual 1175.6632.02 ─ 30
8.4.4 References
This section shows how the R&S SMW includes the factors of a downstream instru-
ment to provide an optimal RF signal for the DUT.
8.4.4.1 Displayed RF Frequency and Level Values with Downstream Instruments
If you are working with a downstream instrument, like a mixer, a frequency multiplier,
an amplifier or an attenuator, you can enter the parameter (offset, multiplier, amplitude)
of the downstream instrument in the frequency or level settings dialog of the
R&S SMW.
The generator includes these parameters and displays the result in the "Freq" and
"Lev" fields in the status bar, as if the downstream instrument and the generator were
one unit. Thus, the displayed value corresponds to the value at the RF output of the
downstream instrument.
The R&S SMW generates the signal without the downstream parameters, but consid-
ers all additional features concerning the RF level, like digital attenuation, user correc-
tion, etc.
RF frequency and level display with a downstream instrument
Figure 8-1: RF frequency & level display vs. RF output frequency
As shown on Figure 8-1, there are further parameters in addition to the frequency and
amplitude, which affect the RF signal for the DUT, e.g. impacts of subsequent instru-
ments. To include these impacts already in the configuration, you can set the associ-
ated parameters directly in the dialogs (see RF Frequency Settings, or RF Level Set-
tings).
In the "Freq " and "Lev" fields of the status bar, the R&S SMW shows the results of the
following correlations:
Configuring RF Frequency and Level
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