Waveform analysis
R&S
®
RTP
312User Manual 1337.9952.02 ─ 12
Start acquisition
Sets the index of the first (oldest) acquisition to be displayed or exported. The index is
always negative.
Remote command:
CHANnel<m>[:WAVeform<n>]:HISTory:STARt on page 1342
Stop acquisition
Sets the index of the last (newest) acquisition to be displayed or exported. The newest
acquisition of the complete acquisition series always has the index "0".
Remote command:
CHANnel<m>[:WAVeform<n>]:HISTory:STOP on page 1343
Current acquisition
Accesses a particular acquisition in the memory to display it, or to save it. The newest
acquisition always has the index "0". Older acquisition have a negative index.
If a history replay is running, the field shows the number of the currently shown acquisi-
tion.
Remote command:
CHANnel<m>[:WAVeform<n>]:HISTory:CURRent on page 1342
Auto repeat
If selected, the replay of the history waveform sequence repeats automatically. Other-
wise, the replay stops at the "Stop acquisition".
Remote command:
CHANnel<m>[:WAVeform<n>]:HISTory:REPLay on page 1344
Display time
Sets the display time for one acquisition. The shorter the time, the faster the replay is.
The setting takes effect for history replay and the display of a Fast Segmentation ser-
ies, see Chapter 5.4.3, "Segmented settings", on page 153.
Remote command:
CHANnel<m>[:WAVeform<n>]:HISTory:TPACq on page 1343
Time stamp
The time stamp shows the time of the currently displayed history acquisition. Thus, the
time relation between acquisitions is always available.
The time stamp "Mode" can be absolute or relative:
●
In "Absolute" mode, the instrument shows the date and the daytime of the current
acquisition.
●
In "Relative" mode, the time difference to the newest acquisition (index = 0) is
shown.
The time stamp can be included in waveform data export, see"Time stamps"
on page 491.
During history replay, the time value is displayed and updated if the replay speed ("Dis-
play time") is slow enough, that is 40 ms or slower.
History
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