Configuring the Signal in the RF Domain
R&S
®
SMW200A
495User Manual 1175.6632.02 ─ 16
Interactions and characteristics
●
Some modulations and operating modes exclude each other, that means they can-
not be performed simultaneously. See Chapter 7.7.6.1, "Simultaneous Operation of
Several Modulations", on page 520 for an overview in detail.
●
The settings of the modulation signal affect all analog modulations that use an
internal modulation source.
●
In sweep mode, LF frequency sweep is possible.
●
You can feed an external LF signal in each of the two paths.
●
An activated analog modulation automatically turns off:
– I/Q modulation,
– Arbitrary waveform generation,
– Digital modulation and
– Digital standards.
7.7.1 Required Options
The equipment layout for generating the analog modulation signals includes per signal
path:
●
Option Frequency (R&S SMW-B10x)
●
Option FM/PhiM Modulator (R&S SMW-B20) , or
option FM/PhiM Modulator and Low Phase Noise (R&S SMW-B22)
●
Option Baseband main module, one/two I/Q paths to RF (R&S SMW-B13/-B13T) or
option Wideband baseband main module two I/Q paths to RF (R&S SMW-B13XT)
Note: To perform for example I/Q modulation and an analog frequency or phase
modulation in one path simultaneously, option R&S SMW-B13T/B13XT must be
installed.
●
Option Pulse Modulator (R&S SMW-K22)
●
Option High Performance Pulse Generator (R&S SMW-K23)
comprises "Single" and "Double" pulse generation
●
Option Multi-Function Generator (R&S SMW-K24)
7.7.2 Modulation Signals
The signal sources for the modulation signal are two internal generators, LF and Noise,
and a pulse generator, but you can also use an externally supplied signal, see External
Signal Sources.
You can perform the AM, FM and PhiM with the signal of any of the provided sources.
Even more, you can merge two modulation signals, for example, to generate a two-
tone signal. Similarly, you can forward the used modulation signal to the output.
Analog Modulations
To Next Page
Loading...
