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Rohde & Schwarz SMW200A - Generating a Digitally Modulated Signal

Rohde & Schwarz SMW200A
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Getting Started
R&S
®
SMW200A
69User Manual 1175.6632.02 ─ 16
Or:
Use the FREQ, LEVEL, and RF ON/OFF key on the front panel.
See also Chapter 2.5, "Instrument Control", on page 106.
The 1.95 GHz signal is output at the RF A connector at the front panel of the
R&S SMW.
Connect RF A of the R&S SMW to a signal analyzer, for example R&S
®
FSW, to dis-
play the generated signal.
RF
INPUT
RF A
Signal
Figure 2-6: Simplified test setup
For the required settings of the signal analyzer, refer to its user manual or its online
help.
2.3.2 Generating a Digitally Modulated Signal
This example shows you how to generate a simple WCDMA-3GPP (QPSK 45° offset)
signal with the help of the "Custom Digital Modulation" functionality. The minimum
requirement for R&S SMW in this example is a base unit.
The initial situation is not the instrument's preset state but rather the configuration
described in Chapter 2.3.1, "Generating an Unmodulated Carrier", on page 67.
1. In the block diagram, select "Baseband A" and navigate to the section "Misc > Cus-
tom Digital Mod...".
Trying Out the Instrument

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