Specifications

Time Difference Between Two Time-Related
Pulses
(Basic
4658)
1.
Obtain
a
Normal
Sweep Display
(refer
to Basic
Oscilloscope
Displays section of this
manual).
Ensure
that the VAR
TIME/DlV
control is
in
the calibrated
detent.
2.
Set
the A TRIGGER
SOURCE switch
to CH 1.
3. Using
probes
or cables having equal
time
delays,
connect
the reference
signal to Channel 1 and the
comparison
signal
to
Channel 2
inputs.
4. Depress
the
CH 1
and CH
2 VERT MODE
push
buttons. Use either
CHOP
(in)
or ALT
(out)
VERT
MODE
switch, depending on
the
frequency
of the
input
signals. ln
general,
CHOP is
more
suitable
for
low-frequency
signals, and
ALT is
best
for high-
frequency
signals. Center
each
of
the
displays
vertically.
5. Depress the
HORIZ
DISPLAY A INTEN
push
button
and
set the B
(DLY'D)
TRIGGER
SOURCE
switch
to
STARTS AFTER DELAY.
SEt
thE B
TIME/DIV
switch 20 times
faster
than
the A
TIME/DlV
switch
(when
possible)
to
obtain the
smallest
usable
intensified
zone.
Observe
intensified
zones
on the
display
(see
Figure
28).
Point
A and
Point
B also
relate
to
intensified zones
on
Figure
29.
Depress the ALT HORIZ
DISPLAY
push
button and
release
the CH 2 VERT
MODE
push
button.
Adjust
Channel 1
POSITION
and TRACE
SEP
so that
A
Sweep
and
B
Sweep are displayed
one
above
the
other.
Use the DELAY
TIME POSITION
control to
move
the intensified
zone
to
the
rising
edge
of
a
Figure
28.
Time difference between two
time-related
pulses.
6.
CHANNEL 1
(REFERENCE)
CHANNEL
2
5Oo/o
AMPLITUDE
LEVEL MEASURE
TIME
FROM A
TO B
I
-l
I
HORIZONTAL !
DIFFERENCE
2756-30
INTENSIFIED
ZONE
@
465B/DM44 Operators
63