Waveform analysis
R&S
®
RTP
308User Manual 1337.9952.02 ─ 12
"RMS"
The root mean square of the math data is displayed. The result is the
average power spectrum. If you measure the channel power on this
RMS spectrum, you get the same result as for the average channel
power measurement on waveforms.
"MinHold"
Determines the minimum result for each input value from the data of
the current acquisition and some acquisitions before.
"MaxHold"
Determines the maximum result for each input value from the data of
the current acquisition and some acquisitions before.
Remote command:
CALCulate:MATH<m>:ARIThmetics on page 1338
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"
The acquisition and average count has several effects:
●
It sets the number of waveforms acquired with [Single]
●
It defines the number of waveforms used to calculate the average waveform.
Thus, the instrument acquires sufficient waveforms to calculate the correct average
if "Average" is enabled for waveform arithmetic. The higher the value is, the better
the noise is reduced.
●
It sets the number of acquisitions to be acquired in a fast segmentation acquisition
series. Thus, you can acquire exactly one fast segmentation acquisition series with
[Single].
If fast segmentation is enabled and configured to acquire the maximum number of
acquisitions, the acquisition count is set to that maximum number and cannot be
changed.
See also "Number of acquisitions" on page 154.
●
It is the "Finished" criteria for the state of a mask test.
Remote command:
ACQuire:COUNt on page 1196
Reset now
Forces the immediate restart of the envelope and average calculation for all wave-
forms.
Remote command:
ACQuire:ARESet:IMMediate on page 1197
Arithmetic Reset > Mode
Defines when the envelope and average evaluation restarts.
"None"
No restart, the number of acquisitions considered by the waveform
arithmetics is not limited.
"Time"
Restarts the envelope and average calculation after the time defined
in "Time".
"Waveforms"
Restarts the envelope and average calculation after a number of
acquired waveforms defined in "Count".
Mathematics
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