Agilent Technologies 54657A Especificações Página 16

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To set the input impedance, press 1 . Select the desired Input
impedance of 50
or 1M.
To set the probe attenuation factor press 1 . Select the Next Menu
softkey. Next toggle the Probe softkey to change the attenuation
factor to match the probe you are using.
You should compensate 10:1 probes to match their characteristics to the
oscilloscope. A poorly compensated probe can introduce measurement
errors. To compensate a probe, follow these steps.
1 Connect the 10:1 probe from channel 1 to the front-panel probe
compensation signal on the oscilloscope.
2 Press Autoscale .
3 Use a nonmetallic tool to adjust the trimmer capacitor on the probe
for the flattest pulse possible as displayed on the oscilloscope.
Overcompensation
causes pulse peaking.
Figure 1–4
Correct compensation
with a flat pulse top.
Figure 1–5
Undercompensation
causes pulse rolloff.
Figure 1–6
The Oscilloscope at a Glance
To connect a signal to the oscilloscope
1–6
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