Acquisition and waveform setup
R&S
®
RTO6
109
User Manual 1801.6687.02 ─ 05
5
Acquisition and waveform setup
This chapter describes the horizontal and vertical settings as well as the acquisition
and probe setup.
5.1
Basics
This chapter provides background information on the essential settings in the vertical
and horizontal systems, on acquisition setup and probing.
5.1.1
Vertical system
The controls and parameters of the vertical system are used to scale and position the
waveform vertically.
5.1.1.1
Input coupling
The input coupling influences the signal path between input connector and the follow-
ing internal signal stage. The coupling can be set to DC, AC, or ground.
●
DC coupling shows all parts of an input signal. DC coupling is available with 1
M
Ω
input impedance to connect standard passive probes. DC 50
Ω
coupling is the
default for 50
Ω
input impedance to connect, for example, active probes.
●
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 on zero
volts.
●
Ground coupling disconnects the input signal from the vertical system to see the
ground level (zero volts) on the screen. Ground coupling is useful for reference
purposes.
5.1.1.2
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, set up the waveforms to cover most of the height of the diagram.
Basics
