Rohde & Schwarz RTP044 - Page 377

Measurements
R&S
®
RTP
377User Manual 1337.9952.02 ─ 12
Meas. type Description/Result
σ
1
Mean ±σ The range between (mean value + standard deviation) and (mean value
- standard deviation)
σ
2
Mean ±2*σ The range between (mean value + 3 * standard deviation) and (mean
value - 2 * standard deviation)
σ
3
Mean ±3*σ The range between (mean value + 3 * standard deviation) and (mean
value - 2 * standard deviation)
+
Marker + Probability
%
The marker value (according to the selected probability domain marker
type) plus the defined limit.
Note that the value is restricted to the histogram range.
-
Marker - Probability % The marker value (according to the selected probability domain marker
type) minus the defined limit.
Note that the value is restricted to the histogram range.
Rough jitter evaluation using a histogram
You can use a horizontal histogram to perform a rough jitter measurement. Define a
histogram for a narrow amplitude range close to the trigger time. The "Max-Min" value
indicates the peak jitter, while the "StdDev" value indicates the RMS jitter.
In addition to histograms on channel, math and reference waveforms, histograms can
be created based on statistic measurement results. These histograms are enabled in
the "Result Analysis" tab, see Chapter 8.2.11, "Result analysis", on page 387.
Automatic measurements