Acquisition and waveform setup
R&S
®
RTO6
127User Manual 1801.6687.02 ─ 05
Sample rate
Sets the number of captured waveform points per second. It considers the samples of
the ADC, and the reduction of waveform points by decimation.
If interpolation is not active, the sample rate is the reciprocal value of the resolution
and thus also depends on the acquisition time and the record length.
If interpolation is active, the sample rate is limited to the ADC sample rate.
See also:
●
Chapter 5.1.2, "Sampling and acquisition", on page 11
1
●
Chapter 5.1.3, "Horizontal system", on page 114
Remote command:
ACQuire:SRReal on page 1330
Record length
Indicates the number of waveform samples that build the waveform across the acquisi-
tion time.
Remote command:
ACQuire:POINts[:VALue] on page 1330
Resolution
Sets the time between two waveform samples. A fine resolution with low values produ-
ces a more precise waveform record.
Remote command:
ACQuire:RESolution on page 1330
Average count (N-single count)
Access:
●
"Menu" > "Acquire" > "Setup" tab > "N-single count"
●
"Menu" > "Acquire" > "Mode"
tab > "Average count"
●
"Menu" > "Acquire" > "Segmented" tab > disable "Acquire maximum" > "Required"
●
[Math] > "Arithmetic" 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 132.
●
It is the "Finished" criteria for the state of a mask test.
Remote command:
ACQuire:COUNt on page 1334
Acquire settings
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