
Vertical System
30
3.2 Coupling
Coupling sets the mode to filter out the undesired signals. There is 3 coupling modes available:
AC
(alternating current),
DC
(direct current), and
GND
(ground).
Channel Coupling
is independent of
Trigger Coupling
. To change trigger
coupling see
.
To select a coupling mode:
1. Press the
button.
2. Press the
F1
soft key to select
Coupling
.
• The coupling drop-down menu will appear.
3. Use the
to select the desired coupling mode.
• Pressing the
Coupling
soft key continuously also toggles between the coupling mode.
The current coupling mode is displayed in the channel information bar at the
bottom of the screen.
DC (Dircet Current)
Both the DC and AC components of the signal under test can both pass through the channel.
DC coupling is useful for viewing waveforms as low as 0 Hz that do not have large DC offsets.
AC (Alternating Current)
The signal is capacitively coupled. DC signal components are rejected. See the datasheet for details
of the cut-off frequency.AC coupling is suitable for observing AC signals with DC offset, such as power
ripple.
AC coupling is useful for viewing waveforms with large DC offsets.
AC coupling places a 10 Hz high-pass filter in series with the input waveform that removes any DC offset
voltage from the waveform.
Summary of Contents for 2510B Series
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