Configuring the Internal Baseband Source
R&S
®
SMBV100B
94
User Manual 1178.4460.02 ─ 03
●
Rise/fall delay: offsets the falling edge of the envelope at the beginning/end of a
burst
Figure 3-3: Impact of the ramp settings
1
= "Ramp Function"
2, 3 = "Rise Delay", "Fall Delay"
4
= "Ramp Time"
3.4.1.2
Regular Marker Output Signals
The R&S
SMBV100B can add
additional signals
to the generated signal. Marker sig-
nals (or markers) are digital signals which can be used to synchronize external devices
to the generated data stream. For example, with suitable marker settings, a slot clock
or frame clock can be selected, or the start of a particular modulation symbol can be
marked.
Three marker output signals are available; they can be output at the User x connec-
tors.
Related settings:
●
Chapter 3.4.2.2, "Marker Settings"
●
Chapter 10.2, "Configuring the Global Connectors"
●
Marker settings in the dialogs of the firmware options
Marker Modes
The marker mode is a characteristic for the shape and the periodicity of the marker.
The R&S
SMBV100B provides several different modes to define different marker sig-
nals. Most of them are specific for each of the firmware options. This section focuses
only on the general commonly available marker signals.
Generally, the marker signal can change from "On" (high) to "Off" (low) state or vice
versa after some period of time. The instrument provides various ways to describe the
marker signal. Use the method that best suits your needs.
Marker mode restart
The generated marker signal is a single "On" pulse. The rising edge of this pulse is
generated at the signal generation start as well as at each subsequent signal restart
Common Functions and Settings in the Baseband Domain
