Rohde & Schwarz SMBV100A - Marker Output Signals

Instrument Function
R&S
®
SMBV100A
282Operating Manual 1407.6062.32 ─ 08
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Internally, triggering is carried out manually by pressing the "Execute Trigger" button
(menu selection "Internal").
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External trigger signals can be fed in via the TRIGGER connector (menu selection
"External").
In the case of external triggering and internal triggering by the trigger signal on the
second path, the start can be delayed by a definable number of symbols (menu setting
"Trigger Delay External"). This makes it possible to purposely simulate the time delay
between a base station signal and a user equipment signal, for example in the course
of base station tests.
The effect of a restarted trigger signal in the "Retrigger" trigger mode can be sup-
pressed for a definable number of symbols (menu setting "External Trigger Inhibit").
By this means the trigger can be suppressed for a definable number of frames, for
example in the course of base station tests, and yet the signal can still be generated
synchronously. In each frame the base station generates a trigger which would cause
a signal generation restart every time but for the suppression.
Example:
Entering 1000 samples means that after a trigger event, any subsequent trigger signal is
ignored for the space of 1000 samples.
5.8.2.7 Marker Output Signals
The R&S Signal Generator generates user-definable marker output signals which can be
used to synchronize external instruments. By this means a slot clock or frame clock can
be set, for instance, or the start of a particular modulation symbol can be marked.
Two marker outputs are available.
Marker Connector Location
Markers 1/2 MARKER 1 / 2 BNC connectors rear panel
5.8.3 Digital Modulation - Custom Digital Modulation
The R&S Signal Generator can generate digital modulation signals with user-definable
characteristics. Baseband filtering and the symbol rate can be set within wide limits.
5.8.3.1 Overview and Required Options
The equipment layout for generating the digital modulation signals includes the option
Baseband Generator (R&S SMBV-B10).
When modulation is ON, a two-part level indication is shown in the header section of the
display. This displays both the average power (LEVEL) and the peak envelope power
(PEP) of the modulated output signal.
Baseband Signal - Baseband Block