Configuring the Signal in the RF Domain
R&S
®
SMW200A
499User Manual 1175.6632.02 ─ 16
Example: Assigning a composite modulation signal to the LF output
This example shows two different configurations for analog modulations in path A.
The following modulations are configured:
●
Analog modulation (first image)
Amplitude modulation performed with an internally generated trapezoid wave sig-
nal and a superposed external signal. This composite LF signal is assigned to the
output LF OUT 1 (see the red lines in the first image).
Simultaneously, the instrument performs phase modulation with an LF signal that is
composed of an external signal and a sine wave, provided by the "LF Generator 2".
This signal is used for the modulation and does not affect the LF output (blue
lines).
●
Path B
Phase modulation performed with two internally generated trapezoid wave signals
that are combined and routed to the output LF OUT 1 (red lines in the second
image).
In the first image, both signals selected for the amplitude modulation in path A are
combined. The instrument performs the amplitude modulation with this signal and also
provides it at the LF output.
The second image shows the similar configuration set up for the phase modulation.
Analog Modulations
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