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Vertical Offset Control Window
Access this control window from the Vertical menu Offset command.
Overview
Use the Vertical Offset control window to set the offset value of the
selected waveform to shift the vertical acquisition window to match the
waveform data you want to acquire.
To Use
Click a Channel button to select the vertical input channel. Click the
Offset control to map it to one of the multipurpose knobs, and use the
knob to set the offset value.
Behavior
The main purpose of the Offset control is to eliminate clipping the
waveform. The Offset control affects the vertical acquisition window by
subtracting a DC bias from the waveform. This moves the level at the
vertical center of the acquisition window of the selected channel.
Visualize offset as scrolling the acquisition window toward the top of a
large signal for increased offset values, and scrolling toward the bottom
for decreased offset values.
The Offset control affects the waveform display by defining the channel reference indicator to match the
offset rather than the ground level. The offset affects only channel waveforms as compared to the position
control that affects all waveforms, including math and reference waveforms. The range of the vertical offset
available depends on the vertical Scale setting.
Termination Control Window
Access this control window from the Vertical menu Termination command.
Overview
Use the Termination control window to select the channel input
resistance (50
Ω
or 1 M
Ω
).
To Use
Click a Channel button at the top of the control window to select the
vertical input channel. If you are not using a probe with a TekProbe
interface, click one of the Termination buttons to set the termination for
your probe.
Behavior
The correct termination is set automatically when you attach a probe
with a TekProbe interface to the instrument. However, you may have to
set the termination manually if you use a probe without the TekProbe
Interface. In general, select 1 M
Ω
to use high impedance passive
probes. Select 50
Ω
to use most active probes and low impedance (Zo)
probes.
Summary of Contents for TDS5000B Series
Page 36: ...36 AFTDS Differential Signal Adapter...
Page 280: ...280 Blackman Harris window...
