Multi-Instrument Setups
R&S
®
SMBV100B
433
User Manual 1178.4460.02 ─ 03
Synchronization is achieved at the moment the basebands in the slaves and in the
master are activated.
5. Configure the baseband signal.
a) Select the same trigger mode as in the master instrument.
b) Set "Sync. Out to Trigger > On".
c) Observe the automatically selected
"Trigger Source = Baseband Sync In"
Once the baseband is activated, the slave instruments are triggered by the syn-
chronization signal.
If the slave instrument is R&S
SMBV100B, the trigger parameters of all basebands
are coupled and all basebands use common trigger signal.
To start signal generation
1. In the slave instruments, start signal generation.
That is, activate the baseband generator.
2. In the master instrument, activate the baseband generator.
3. In the slave instruments, observe the value of the parameter "System Config >
Multi Instruments > Synchronization State"
The instruments are synchronized if:
● The physical connection is established
● The synchronization signal is routed property
● The baseband generators in all generators are active.
Compensate signal mis-alignment:
1. Connect an oscilloscopes or network analyzer.
Observe the generated signals.
2. Compare the signal start in the instruments.
3. To compensate signal delay, select "I/Q Modulator > I/Q Digital Impairments"
4. Vary the value of the parameter
"I/Q Delay"
to achieve time aligned signals.
5. If the value range is insufficient, enable additionally or alternatively a trigger delay.
Select "Baseband > <Dig Standard> > Trigger In" >
"Delay"
.
6. Vary the values until the signals are aligned in time.
8.3.1.3
Further Information
See:
●
Trigger settings of the used baseband source, for example
See
Chapter 10.2, "Configuring the Global Connectors"
Generating Time-Aligned Baseband Signals
