Display Waveform Data
3. Push Im pedance repeatedly to select the
input impedance to use.
Set the inpu t impedance ( terminat ion) to
50 Ω or 1 MΩ if using DC or Gnd coupling.
Input impedance is automatically set to 1 M Ω
when using AC coupling.
For more information on inp ut impedance, see
Quick Tips. (See page 178, Quick Tips.)
4. Push Invert to invert the signal.
Select Off for normal operation and On
to invert the polarity of the sign al in the
preamplifier.
5. Push Bandwidth, and select the de s ired
bandwidth from the resulting side-bezel m enu.
The set choices are: Full, 25 0 MHz, and
20 MHz. Additional cho ices may appear,
depending on the probe th at you use.
Select Full to set the bandwidth to the full
oscilloscope bandwidth.
Select 250 MHz to set the bandwidth to
250 MHz.
Select 20 MHz to set the bandwidth to 20 MHz.
MSO4000 and DPO4000 Series Oscilloscopes User Manual 173
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