Keysight EXG and MXG X-Series Signal Generators User’s Guide
265
Basic Digital Operation (Option 653/655/656/657)
Multiple Baseband Generator Synchronization
Multiple Baseband Generator Synchronization
Available in the Dual ARB menu, this feature lets you set up a master/slave system of up to sixteen
Keysight MXG/EXGs so that the baseband generators (BBG) synchronize the playing of waveforms.
The system count includes one Keysight MXG/EXG to function as the master (see
).
The MXG/EXG with Option 012, enables 2x2, 3x3, or 4x4 MIMO configurations to share a common
external LO signal to create phase coherent system. Refer to
In/Out for Phase Coherency) with Multiple Baseband Generator Synchronization” on page 271
and the
Data Sheet
.
Figure 9-27
Multiple Baseband Generator Synchronization (BBG Synchronization) Trigger
Softkeys and Menu Location
For details on each key, use key help
as described on
Greys out for slave instruments.
Remains active for the master
instrument.
see
BBG sync automatically changes the trigger type to
Trigger and Run
if
the current setting is
Free Run
or
Gated
. If desired, manually set
differently on either the master or slaves, or both either before or after
configuring the BBG sync setup parameters.
Free Run
and
Gated
are unavailable choices while using BBG sync.
Master default settings. If
desired, change these
settings after designating the
instrument as the master
Slave default settings. These
settings are not accessible
after selecting an instrument
as a slave.
Note:
The BBG sync feature automatically configures the trigger settings shown below. To avoid a settings conflict error in this
process, manually configure the trigger settings prior to setting the BBG sync parameters shown on
see
see
Neg
is the factory default setting.
The slave selection changes it to
Pos
. If desired, manually change to
Pos
prior to selecting as a slave.
Note
: A setting conflict error occurs
when at the time of the master/slave
selection, the following trigger setting(s)
is true:
Master
•
Free Run
or
Gated
trigger type
Slave
•
Free Run
or
Gated
trigger type
•
Ext Polarity Neg
trigger source
