Instrument Function
R&S
®
SMU200A
337Operating Manual 1007.9845.32 ─ 15
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.
A signal which marks the trigger event set off by the current internal or external trigger of
path A or B can be output at the USER connectors (AUX IO interface or USER BNC
connector).
The trigger mode setting, the selection of the trigger source and the setting of a delay
and trigger suppression in the case of external triggering are carried out independently
for each of the two paths. On the other hand configuration of the trigger connectors
(polarity and impedance) is carried out jointly for both paths.
5.8.2.8 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.
Four marker outputs are available for each path. The outputs for markers 1 to 3 are
defined, but marker 4 can be placed on one of the USER outputs according to choice.
Path Marker Connector Location
Path A Markers 1/2 MARKER 1 / 2 BNC connec-
tors
front panel
Marker 3 MARKER 3 pin of the AUX I/
O connector
rear panel
Marker 4 USER1 BNC connector or
USER2/3/4 pins of the AUX
I/O connector
rear panel
Path B Marker 1 MARKER 1B BNC connector rear panel
Markers 2/3 MARKER 2B / 3B pins of the
AUX I/O connector
rear panel
Marker 4 USER1 BNC connector or
USER2/3/4 pins of the AUX
I/O connector
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.
Baseband Signal - Baseband Block
To Next Page
Loading...
