Glossary - HP 54721A User Reference

Amplifier plug-in
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Glossary
Atten units
(attenuation units)
Lets you set the probe attenuation
units to either decibel or ratio.
Calibrate probe
Automatically
calibrates voltage probes to their tip
so the oscilloscope takes into ac¬
count the actual voltage attenuation
factor of the probe and any offset in¬
troduced by the probe.
Calibrate to best accuracy
When the plug-in is calibrated to
best accuracy, you obtain the 1 per¬
cent dc accuracy specifications.
Calibration status
Displays de¬
tails on the calibration status of the
plug-in.
Decibel
Used for setting the probe
attenuation when you are using an
external attenuator instead of a volt¬
age probe.
Display
(channel) Turns the chan¬
nel display off and on.
Offset
Moves the waveform verti¬
cally on the display.
Probe Atten
(probe attenuation)
Allows you to set the probe-attenu¬
ation factor from 0.0001:1 to
1
,
000
,
000
:
1
.
Ratio
Used for setting the probe
attenuation on voltage probes where
the division factor is listed as a ratio.
Scale
(channel scale) Scales the
input signal with an internal attenu¬
ator. Software ej^ansion is used on
the scale settings between the at¬
tenuator ranges.
Skew Lets you compensate for dif¬
ferences in cable or probe lengths.
You can also use Skew to overlay
waveforms.
Units
Lets you select Volt, Am¬
pere, Watt, or unknown as the unit
of measure for the channel scale, off¬
set, and vertical measurement values.

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