HP 83480A - User Defined; Using Markers to Show Top-Base Settings

General Purpose Oscilloscope Menus
Dene Measure Menu
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User Defined
User dened lets you set the top and base to a specic voltage value.The
upper, middle, and lower thresholds are then calculated from the voltage
values you select.
User dened simplies the threshold detection algorithm. The result is that
the measurement throughput of the instrument is increased, because the
instrument does not have to calculate the top-base values.
K
ey
Path
4
Dene
meas
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Top-base
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user
defined
Using
markers
to
show
top-base
settings
The
markers
can
be
used
to
give
you
a
visual
indication
of
where
you
are
manually
setting
the
top-base
values
on
a
waveform.
1.
T
o
use
the
markers
to
show
the
top-base
settings
,
press:
4
Ma
rk
ers
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measurement
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Enter
4
Shift
5
4
V
amptd
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Enter
2.
Select
the
channel
you
are
using.
3. Adjust the Top and Base levels by pressing:
4
Dene meas
5
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Top-base
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user defined
A
djust
the
values
of
T
op
and
Base
.
The markers
give
you
a
visual
indication
of
where
you
are
positioning
them on
the
waveform.
If the marker values are much greater than the
top-base values
, the
markers may be clipped o the screen.
10-13