HP 83480A User Manual

Standard and Enhanced Trigger Modes
The standard HP 83480A trigger has two bandwidth modes,
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DC-2.5 GHz
and
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DC-100 MHz . The HP 83480A Option 100 adds two enhanced
bandwidth modes,
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2-12 GHz and
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2-12 GHz Gate . This section describes
each mode and its applications.
DC-2.5
GHz
mode
The
DC-2.5
GHz
mode
is
much
like
a
traditional
analog
oscilloscope
trigger
.
It
is
DC
coupled
with
an
adjustable
threshold
level
from
0
1.0
V
to
1.0
V
.
Either
the
positive
or
negative
transition
can
be
selected.
There
is
a
freerun
mode
that
allows
the
user
to
see
the
signal
amplitude
before
a
trigger
has
been
established.
There
is
also
a
high
sensitivity
setting
that
reduces
trigger
hysteresis
for
low-level, and
low
noise
,
signals
.
The
DC-2.5
GHz mode
is used
for
the
majority
of
applications
because
it
provides
excellent performance
for trigger
signals
up
to
2.5
GHz
and
has the
most user-selectable
options.
Select this
mode
whenever
eyeline
measurements are
made.
DC-100 MHz mode
The
DC-100
MHz
mode adds
a
low-pass
lter
to
the
trigger
path.
This
mode
is
used for noisy low
frequency trigger signals
, because it can be used to reject
high frequency noise
. DC-100 MHz mode allows more accurate triggering
in these applications
, but will reduce the eective trigger bandwidth to
approximately 100 MHz .
13-22

HP 83480A Specifications

General

Brand	HP
Model	83480A
Category	Measuring Instruments
Language	English