Applying I/Q Vector Modulation
R&S
®
SMBV100B
278User Manual 1178.4460.02 ─ 03
Interdependencies
An I/Q modulation with an external analog signal cannot be used simultaneously with
the following:
●
AM, digital modulation, digital standards
●
AWGN
●
External digital baseband input signal, arbitrary waveform generation, and multi-
carrier CW.
5.3 I/Q Modulator Settings
Access:
1. To configure the input signal source of the I/Q modulator, select "I/Q Mod > I/Q Mod
In" and enable an internal baseband or an analog wideband input signal.
2. To access the dialog box for configuring the I/Q modulator settings, select "I/Q Mod
> I/Q Settings > I/Q Modulator".
The dialog comprises the I/Q modulator settings, the optimized settings for wide-
band modulation and settings for enabling the analog and/or digital impairments.
The remote commands required to define these settings are described in Chap-
ter 12.16.8, "SOURce:IQ Subsystem", on page 830.
For a description on the signal impairment functionality and settings for applying
non-linear effects, see:
● Chapter 4.2, "Impairing the Signal", on page 269
See user manual R&S SMBVB-K540, R&S SMBVB-K541 Envelope Tracking and
AM/AM, AM/PM Predistortion.
I/Q Modulator Settings