Agilent Technologies Signal Analyzer N9030a - Manual (Page 862)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Mode
remains allocated even when it is not running, and is not released until the analyzer program
(xSA.exe) shuts down.
Agilent 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 appears with four options:
1. Close and restart the analyzer program without changing your configured preloads. This may
free up enough memory to load the requested Mode, depending on your configured preloads
2. Clear out all preloads and close and restart the analyzer program with only the requested
application preloaded, and with that application running. This choice is guaranteed to allow
you to run the requested application; but you will lose your previously configured preloads.
In addition, there may be little or no room for other applications, depending on the size of the
requested application.
3. Start the Configure Applications utility, in order to reconfigure the preloaded applications to
make room for the applications you want to run (this will then require restarting the analyzer
program with your new configuration). This is the recommended choice because it gives you
full flexibility to select exactly what you want.
4. Exit the dialog box without doing anything, which means you will be unable to load the
application you requested.
Except for case 4, selecting any option from the dialog causes the analyzer software to close, and
you will lose all unsaved traces and results.
If you attempt to load a mode via SCPI that exceeds memory capacity, the Mode does not load
and an error message is returned:
–225,"Out of memory;Insufficient resources to load Mode (mode name)"
where “mode name” is the SCPI parameter for the mode in question, for example, SA for Spectrum
Analyzer Mode.
Spectrum Analyzer
Selects the Spectrum Analyzer mode for general purpose measurements. There are several
measurements available in this mode. General spectrum analysis measurements, in swept and zero
span, can be done using the first key in the Meas menu, labeled Swept SA. Other measurements in
the Meas Menu are designed to perform specialized measurement tasks, including power and
demod measurements.
862 Remote Language Compatibility Measurement Application Reference