Specifications

at
markers
Key
start marker
Key
stop marker Key
this
ftrnction
kcytoggles
the
time
narkers
on and
off. Sirith
the At
function
turned
on the ned two fields
are
activated
atlowing
individual
control
of the two
markers.
The markers
are
placed
on the
displayrespective
of
the
trigger
point.
Positive
time values
are
to
the
right
of the
trigger
point
and negative
tine
values
are
to the
left. Delta
t
values
are determined
by the
following:
stop
marker
-
start mar*er
=
delta t
There
is no
such
thing
as
negative
delta
t, this
only mer"s
that the
start
marker
is
placed
later in time
than the
stop marker.
The inverse
of delta t
is l/delta
t.
Since the inverse
of time
is frequency,
this
ratio
produces
an answer in frequency.
However,
if
the markers
are
placed
across
parts
of a
waveform
of
differing
time frames,
the
answer
may not
be vdid. This feature is
useful when
looking
for
the frequency
in
a burst
that
is
different
from
the rest
of the waveform.
Place
the
time
markers
across the burst
(at
similar points
on
the
waveform)
to
determine
the
frequency
of
the
burst.
To
set the start marker,
press
the function key
to
h;gttlght
the field. This
makes
the
start
marker field
active.
Set the marker
with
the knob.
The
start marker is represented with
long
dashes.
The
stop marker is identical
to the
start marker,
except
that it is
represented
by short
dashes.
HP 54510A
F『
ont‐
Panel Reference
DeL t/Delta V Menu
8‐
3
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