Keysight M9391A PXIe Signal Analyzer & M9381A PXIe Vector Signal Generator 1 MHz to 3 GHz or 6 GHz
60
Enabling Shared Synthesizer Functionality
Shared synthesizer functionality is enabled using options during initialization. To
initialize a shared synthesizer session, the following three options must be set in
the
section of the option string for each PXIe VSG or VSA
DriverSetup=
instrument:
ShareSynthesizerVisaSession
SynthesizerRole
SynthesizerOutputPort
ShareSynthesizerVisaSession
For each instrument that you want to share the synthesizer module, set this option
to true by setting the command line option
. The default for this option is set to
ShareSynthesizerVisaSession=true
false. If this option is not set to true when the instrument tries to connect to a
synthesizer module that is already a part of a session, an initialization error reports
that the module is locked.
SynthesizerRole
First you must decide which instrument will act as master, then you need to set all
other instruments to slave by setting the command line option
. The default for this option is master so failing to set
SynthesizerRole=slave
the other instruments to slave will result in multiple instruments trying to adjust the
synthesizer. After initialization, this option cannot be changed within the session.
SynthesizerOutputPort
The M9301A PXIe Synthesizer has four output ports and each output port has been
individually calibrated. For highest accuracy, set which output port is connected to
each instrument by setting the command line option
where XX is the name of the port (1a, 1b, 2a, or
SynthesizerOutputPort=XX,
2b). The default setting is port 1a.
The M9301A PXIe Synthesizer's output ports are paired, such that port 1a and 1b
always output the same signal level, and likewise for port 2a and 2b. During startup
the driver checks the signal level and reports an error if the expected signal level
was not detected. This can occur, for example, if you connect port 1a to the
instrument but set
.
SynthesizerOutputPort=2a
When using an LO Distribution Network, you must configure the following option in
the “
” section of the
during the initialization
DriverSetup=
OptionString
process:
ExtLoDistributionUnit
Set this option to true, or use a supported model number such as V2802A. Setting
this option prepares the driver for use with the LO Distribution Network by loading
the LO Level field alignment data.
