Agilent Technologies Signal Analyzer N9030a - Manual (Page 1331)

6 RLC Swept SA Measurement Front-Panel & SCPI Reference
Trace/Detector
Whenever you press Max Hold or send the equivalent SCPI command, Update is set to On and
Display is set to On.
Automatic detector selection and the VBW:RBW ratio auto rules both depend on the trace type
selections.
Preset After a Preset, any trace that is in Max Hold is cleared (all trace points set to mintracevalue).
State Saved The type for each trace is saved in instrument state
Backwards Compatibility
Notes In the X-Series, unlike earlier analyzers, Max Hold and Min Hold now obey the Average Number
and counts up to a terminal value as Average always has.
As the Average/Hold Number now affects Min Hold and Max Hold, the things that restart
Averaging (eg, the Restart key) now also restart Min Hold and Max Hold.
As a result of these changes, users who used to restart averaging while retaining a running Max
Hold will find that they need to rewrite their code, because the Max Hold will restart when the
Average does.
Also, previous to the X-Series,
−
pressing Max Hold while already in Max Hold (or doing so remotely) had no effect. Now it
will clear the trace and restart the sweep and the Max Hold sequence..
−
changing the vertical scale (Log/Lin or dB/div) of the display restarted Max Hold and Min
Hold. This is no longer the case in the X-Series.
Initial S/W Revision Prior to A.02.00
Modified at S/W
Revision A.11.00
Min Hold
In Min Hold type the analyzer maintains and displays a min hold trace, which represents the
minimum data value on a point-point basis of the new trace data and previous trace data. Details
of the count limiting behavior may be found under
"Average/Hold Number" on page 788 in the
Meas Setup Section.
Pressing the Min Hold key for the selected trace, or sending the TRAC:TYPE MINH command for the
specified trace, sets the trace type to Min Hold, causes the trace to be cleared, and causes the Min
Hold
sequence to be (re)started, even if you are already in Min Hold.
When in Min Hold, if a measurement-related instrument setting is changed, the Min Hold sequence
restarts and a new sweep is initiated but the trace is not cleared.
Restarting the Min Hold sequence means:
•
The average/hold count k is set to 1, so that the next time the min hold trace is displayed it
simply represents one trace of new data
•
A new sweep is initiated.
Remote Language Compatibility Measurement Application Reference 1331