User manual
Measurements
R&S
®
RTO
150User Manual 1316.0827.02 ─ 06
5.2.2.7 Using Gate Areas
Gate areas limit the measurement to a user-defined range of the waveform.
For basic amplitude vs. time or channel power measurements the gate area can be
defined directly after selecting the corresponding toolbar icon. For all other measure-
ments, or if you want to define a more precise gate area, configuration is done in the
"Measurement > Gate/Display" dialog box.
1. On the "Meas" menu, tap "Gate/Display".
2. Select the tab for the measurement you want to configure.
3. To define the gate, use one of the following methods:
● Define the start and stop values of the gate area by entering either absolute or
relative values.
● If a zoom area has already been defined for the waveform, couple the gate area
to the zoom area by selecting the "Zoom coupling" option.
● If a cursor measurement has already been defined for the waveform, couple the
gate area to the cursor lines by selecting the "Cursor coupling" option.
4. Tap the "Use gate" icon to enable the gate area usage.
5. Optionally, tap the "Show gate" icon to indicate the gate area in the diagram.
The measurement is performed on the selected value range of the waveform. If
selected, the used range is indicated in the diagram.
5.2.2.8 Performing Long-term Measurements
In order to evaluate statistics for a measurement, it is useful to perform the measurement
over a long period of time or for a large number of samples. Intermediate results can be
reset after a specified number of acquisitions or a specified period of time in order to
evaluate time-dependant behavior. Long-term measurements can be configured for all
automatic measurement types.
1. From the "Meas" menu, select "Setup" to open the "Measurement" dialog box.
2. Select the tab for the measurement you want to configure.
3. Select the "Long Term/Statistics" tab.
4. Since the waveform may change in the process of time, enter the vertical scaling as
a percentage per division, rather than using an absolute value. A vertical offset is also
defined as a percentage.
Alternatively, tap the "Auto scale" button to have the scaling adapted automatically.
5. Define how many "Measurement points" are to be generated before the measure-
ment is stopped.
6.
If the "Reset statistics mode" is set to "Time" (see "Reset statistics
mode" on page 175), define a "Total measurement time".
Automatic Measurements