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Using the Scope and Meter
Acquiring Waveforms
1
27
Working with Noisy Waveforms
To suppress high frequency noise on waveforms, you can
limit the working bandwidth to 20 kHz or 20 MHz. This
function smoothes the displayed waveform. For the same
reason, it improves triggering on the waveform.
To choose HF reject on for example input A, do the
following:
1
A
Display the INPUT A key labels.
2
F4
Open the INPUT A menu.
3
ENTER
Jump to Bandwidth: and select
20kHz (HF reject) to accept the
bandwidth limitation.
Tip
To suppress noise without loss of bandwidth,
use the average function or turn off Display
Glitches.
Using Mathematics Functions +, -, x, XY-mode
You can add (+), subtract (-), or multiply (x) two
waveforms. The test tool will display the mathematical
result waveform and the source waveforms.
The XY-mode provides a plot with one input on the
vertical axis and the second input on the horizontal axis.
The Mathematics functions perform a point-to-point
operation on the involved waveforms.
To use a Mathematics function, do the following:
1
SCOPE
Display the SCOPE key labels.
2
F4
Open the WAVEFORM OPTIONS menu.
3
ENTER
Jump to Waveform: and Select
Mathematics... to open the
Mathematics menu.
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