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WavePro 7 Zi and Zi-A Oscilloscopes
73
WP7Zi-GSM-E RevB
Anti-aliasing filters are applied to limit bandwidth at lower sample
rates, regardless of bandwidth limit selection.
Linear and (SinX)/X Interpolation
Linear interpolation, which inserts a straight line between sample points, is
best used to reconstruct straight-edged signals such as square waves.
(Sinx)/x interpolation, on the other hand, is suitable for reconstructing
curved or irregular wave shapes, especially when the sample rate is 3 to 5
times the system bandwidth.
Interpolation Setup
1.
Touch the button for the channel you want to set up (channel 1, for
example).
2.
In the dialog area, touch inside the
Interpolation
data entry field
under
Pre-Processing
. Pre-Processing is meant as before Math
processing.
3.
Touch inside the
Interpolation
data entry field. A pop-up menu
appears offering
Linear
or
Sinx/x
interpolation.
4.
Touch the button for the type of interpolation you want.
Inverting Waveforms
If available on your instrument, touch the
Invert
checkbox to invert the
waveform for the selected channel.
Finding Scale
You can access the
Find Scale
button from the channel setup dialog. This
feature automatically calculates peak-to-peak voltage, and chooses an
appropriate Volts/Div scale to fully display the waveform.
Using Find Scale
1.
Touch the trace label for the waveform you desire.
2.
Touch the
Find Scale
button.