Keysight E6640A, Measurement Applications User & Programmer Reference

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5 Mode Functions
Mode
:CONF FSC
This results in the analyzer being placed in the EMI Receiver Mode, running the Frequency Scan
measurement, in order to emulate the ESU Receiver Mode.
Initial S/W Revision Prior to A.02.00
Modified at S/W Revision A.13.00
Example :INST ‘SA’
Notes The query is not a quoted string. It is an enumeration as indicated in the Instrument Select table
above.
The command must be sequential: i.e. continued parsing of commands cannot proceed until the
instrument select is complete and the resultant SCPI trees are available.
Backwards
Compatibility SCPI :INSTrument[:SELect] ‘SA’|’PNOISE’|’EDGE’|’GSM’|’BASIC’
Initial S/W Revision Prior to A.02.00
More Information
The Mode name appears on the banner after the word “Keysight” followed by the Measurement Title. For
example, for the IQ Analyzer mode with the Complex Spectrum measurement running:
It is possible to specify the order in which the Modes appear in the Mode menu, using the Configure
Applications utility (System, Power On, Configure Applications). It is also possible, using the same utility,
to specify a subset of the available applications to load into memory at startup time, which can significantly
decrease the startup time of the analyzer. During runtime, if an application that is not loaded into memory
is selected (by either pressing that applications Mode key or sending that applications :INST:SEL command
over SCPI), there will be a pause while the Application is loaded. During this pause a message box that
says “Loading application, please wait…” is displayed.
Each application (Mode) that runs in the X-Series signal analyzers consumes virtual memory. The various
applications consume varying amounts of virtual memory, and as more applications run, the memory
consumption increases. Once an application is run, some of its memory remains allocated even when it is
not running, and is not released until the analyzer program (xSA.exe) is shut down.
Keysight characterizes each Mode and assigns a memory usage quantity based on a conservative
estimate. There is a limited amount of virtual memory available to applications (note that this is virtual
memory and is independent of how much physical RAM is in the instrument). The instrument keeps track of
how much memory is being used by all loaded applications – which includes those that preloaded at
startup, and all of those that have been run since startup.
When you request a Mode that is not currently loaded, the instrument looks up the memory estimate for
that Mode, and adds it to the residual total for all currently loaded Modes. If there is not enough virtual
memory to load the Mode, a dialog box and menu will appear that gives you four options:
W-CDMA & HSPA Measurement Applications Reference 233