Tektronix DPO3000 Series, Руководство пользователя

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Display Waveform Data
3. Push Impedance repeatedly to select the
input impedance to use.
Set the input impedance (termination) to 50
Ω ,
75 Ω , or 1 M Ω if using DC or Gnd coupling.
Input impedance is automatically set to 1 M Ω
when using AC coupling.
For more information on input impedance, see
Quick Tips . (See page 150, Quick Tips .)
4. Push Invert to invert the signal.
Select Off for normal operation and On
to invert the polarity of the signal in the
preampli
fi er.
5. Push Bandwidth , and select the desired
bandwidth from the resulting side-bezel menu.
The set choices are: Full and 20 MHz.
Additional choices may appear, depending on
the probe that you use.
Select
Full to set the bandwidth to the full
oscilloscope bandwidth.
Select
20 MHz to set the bandwidth to 20 MHz.
6. Push Label to create a label for the channel.
(See page 79, Labeling Channels and Buses .)
148 DPO3000 Series Oscilloscopes User Manual