HP 83480A User Manual

The Digital Communications
Analysis Menus
Trigger Menu
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External Scale
The External Scale function can be used when the trigger signal level changes
due to the use of an attenuator or a probe. The attenuator factor can be
entered either as a decibel value or a ratio.
Key Path 4
Trigger
5
N
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External scale
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Attenunits decibel or ratio
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
a
aa
aa
a
Level
Level
species
the
voltage
threshold
that
a
signal
must cross
in
order
for
the
instrument
to
trigger
on
that
signal.
Y
ou can
use
the
knob
,
arrow
keys
,
or
keypad
to
change
the
trigger
level.
Y
ou
can
adjust
the
trigger
level
from
within
any
of
the
trigger
submenus
.
Key
Path
4
T
rigger
5
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Level
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Slope
Slope species whether the instrument triggers on either the positive or
negative
edge
on
a
signal.
A
positive
slope
is
an
edge that
transitions
through
and
above
the
trigger
level.
A negative
slope
transitions
through
and
below
the trigger level.
Key Path
4
Trigger
5
NNNNNNN
NNNNNNNNNN
Slope
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HP 83480A Specifications

General

Brand	HP
Model	83480A
Category	Measuring Instruments
Language	English