User manual

Acquisition and Setup
R&S
®
RTO
19User Manual 1316.0827.02 ─ 06
2.1.3 Horizontal System
2.1.3.1 Parameters of the Horizontal System
The control parameters of the horizontal system are tightly connected. Thus, changing
one parameter affects the other parameters as well.
The mathematical dependencies can be summarized as follows:
The time scale can be changed, all other parameters are adjusted automatically.
The number of divisions is 10, this is the only constant parameter.
When you set up horizontal parameters, you can choose whether the record length or
the resolution should remain constant.
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With constant resolution, increasing the time scale also increases the record length,
and vice versa. You can limit the record length to a maximum value.
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With constant record length, increasing the time scale coarsens the resolution, that
is, the time between two waveform samples gets longer.
For both settings, the "Auto adjustment" ensures a sufficient resolution to prevent under-
sampling.
2.1.3.2 Horizontal Position
As described before in chapter 2.1.2.3, "Acquisition Control", on page 18, the trigger
defines the time-zero point in the waveform record.
Basics