Acquisition and Waveform Setup
R&S
®
RTM20xx
11
User Manual 1317.4726.02 ─ 01
2 Acquisition and Waveform Setup
The chapter describes the horizontal and vertical basic settings including the acquisition
and probe settings.
2.1 Basics
This chapter provides background information on the essential settings in the vertical and
horizontal systems, on acquisition setup and probing.
2.1.1 Vertical System
The controls and parameters of the vertical system are used to scale and position the
waveform vertically.
2.1.1.1
Input coupling
The input coupling influences the signal path between input connector and the following
internal signal stage. The coupling can be set to DC, AC, or ground.
●
DC coupling shows all of an input signal. DC coupling is available with 1
M
Ω
input
impedance to connect standard passive probes. DC coupling is the default for 50
Ω
input impedance.
●
AC coupling is useful if the DC component of a signal is of no interest. AC coupling
blocks the DC component of the signal so that the waveform is centered around zero
volts.
2.1.1.2
Vertical scale and position
Vertical scale and vertical position directly affect the resolution of the waveform ampli-
tude. The vertical scale corresponds to the ADC input range. To get the full resolution of
the ADC, waveforms should cover most of the height of the diagram.
Basics
