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1306
Trace/Detector
Remember that restarting Max Hold also restarts averaging and Min Hold, as there is only one count for
Trace Average and Hold.
Min Hold
In Min Hold type the test set 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 1047 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 restarted.
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.
Remember that restarting
Min Hold also restarts Max Hold and averaging, as there is only one count for
Trace Average and Hold.
Key Path Trace/Detector
Example TRAC4:TYPE MAXH
Notes See ““Trace/Detector” on page 1301”.
Couplings Affected by
Average Type and Average/Hold Number
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
Initial S/W Revision Prior to A.02.00
Key Path
Trace/Detector
Example TRAC3:TYPE MINH
Notes See ““Trace/Detector” on page 1301”.