Agilent Technologies Signal Analyzer N9030a - Manual (Page 1323)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Trace/Detector
State Saved The state of Average is saved in Instrument State for ghosting purposes
Backwards Compatibility
Notes Previous to the X-Series, Averaging (also sometimes known as trace averaging) was global to all
traces, that is, it was either on or off for all active traces. The legacy command
[:SENSe]:AVERage[:STATe]
ON | OFF | 1 | 0 was used to turn averaging on and off.
In the X-Series, Averaging is turned on and off on a per-trace basis, so it can be on for one trace
and off for another.
For backwards compatibility, the old global Average State variable is retained solely as a legacy
variable, turned on and off and queried by the legacy command [:SENSe]:AVERage
[:STATe] OFF|ON|0|1.
When Average is turned on, any trace in Clear Write will get put
into Average. While Average is on, any trace put into Clear Write by the old TRAC:MODE
command will instead get put into Average. When Average is turned off, any trace in Average
will get put into Clear Write.
Initial S/W Revision Prior to A.02.00
Trace Mode Backwards Compatibility
In earlier analyzers, the Trace Modes were Clear/Write, Max Hold, Min Hold, View and Blank.
Averaging was global to all traces and was controlled under the BW/Avg menu.
In the X-Series, trace averaging can be done on a per-trace basis. The Trace Modes (now called
Types) are Clear/Write, Trace Average, Max Hold and Min Hold. View and Blank are set
separately under the View/Blank key.
While this gives the user more flexibility it also gives rise to potential backwards compatibility
problems. To mitigate these, the old Trace Mode command has been retained and a new
command, Trace Type, has been added. What were formerly called trace modes are now called
trace types. The
:TRACe:MODE command is retained for backwards compatibility and the
:TRACe:TYPE , :TRACe:UPDate and :TRACe:DISPlay commands introduced for ongoing use. The
old Trace Modes are selected using TRAC:MODE, whose parameters are mapped into calls to
TRACe:TYPE, TRACe:UPDate and TRACe:DISPlay, and the old global Averaging command
[:SENSe]:AVERage[:STATe] is provided for backwards compatibility. See these individual
command descriptions for details.
Trace Update Indicator
Trace updates can take one of two forms:
1. The trace is updated in a single operation that affects all of the points in the trace at once.
This happens, for example, in the case of very fast (< 200 ms) sweeps, single-chunk FFT’s, and
the initial math operation after a math function is set for a trace.
Remote Language Compatibility Measurement Application Reference 1323