Acquisition and waveform setup
R&S
®
RTP
152User Manual 1337.9952.02 ─ 12
Wfm Arithmetic
Waveform arithmetic builds the resulting waveform from several consecutive acquisi-
tions of the signal. The arithmetic works with interpolated and decimated waveforms.
This setting is waveform-specific.
The methods are:
"Off"
The data of only one acquisition is recorded according to the decima-
tion settings. In effect, no waveform arithmetic is processed.
"Envelope"
Detects the minimum and maximum values in a sample interval over
several acquisitions. Each acquisition is done in the "Peak detect"
decimation mode, and the most extreme values for all acquisitions
build the envelope. The resulting diagram shows two envelope wave-
forms: the minimums (floor) and maximums (roof).
The envelope is built until the restart criterion is reached, see "Arith-
metic Reset > Mode" on page 153.
Note: If you change from "Envelope" to "Off", make sure to set also
the "Mode" to the required value.
"Average"
The average is calculated from the data of the current acquisition and
several acquisitions before. The method reduces random noise and
other heterodyne signals. It requires a stable, triggered and periodic
signal for correct function.
The number of acquisitions for average calculation is defined with
"Average count"
The "Auto reset mode" defines the restart condition.
Remote command:
CHANnel<m>[:WAVeform<n>]:ARIThmetics on page 1196
Couple channels
Sets the acquisition mode and the waveform arithmetic of all channels to the last set
value.
If the acquisition settings are coupled, "Multi waveform" is not available, only one
waveform per channel can be used.
Remote command:
ACQuire:CDTA on page 1194
Multi waveform
For each channel, up to three waveforms can be shown and analyzed. The decimation
mode and the waveform arithmetic are specific for each waveform. So you can analyze
several aspects of the signal: For example, waveform1 shows the peaks, and wave-
form2 shows the average of the signal.
Remote command:
ACQuire:MUWaveform on page 1195
Average count (N-single count)
Access:
●
"Menu" > "Acquire" > "Setup" tab > "Average count (N-single count)"
●
"Menu" > "Acquire" > "Segmented" tab > disable "Acquire maximum" > "Required"
●
[Math] > "Setup" tab > "Mode" is not "Off" > "Average count"
Acquire settings
To Next Page
Loading...
