Specifications

Nde
Tte
signat
generunr
is
set
for
two
500
ns
pulses.
The
disploy on
the oscillosape
qpe&t
to
harre three
prulses.
This
is on
unstoble
uiger
condition. The
folla+ing
stqs
qlain
this
condition
ondhow
to overcone
iL
fip
stoppld
`3 7wa‐b“が
動
膨
Determining
holdofitime. Change the time/div setting to2
psldiv.
Press RUN/STOP
(STOP),
CLEAR
DISPLAY,
and
SINGLE.
This
shows the
period
of the waveform. Since the oscilloscope is
recogpizing
nvo
valid
trigger
events
(edges,
in
this case) of
the burst,
1[s fusld6ff
time
needs
to be set such that
it ignores
the
second pulse
in
the burst.
Using
A
t
markers, the
second
edge
can be
found
to be
about
1ps
from the
fust
edge.
(See
Chapter
8,
"Delta t/Delta
V
Menu.")
Press
the holdoff
key.
Set
holdoff
to 1.04fi)0ps, with
keypad
or
knob.
HP
54510A
Front-Panel
Reference
Trigger
Menu
s6