DELAYED SWEEP DISPLAY
1.
Obtain a Normal Sweep Display.
2.
Set the
HORIZ
DISPLAY switch
to
A INTEN and the
B
Trigger
SOURCE switch
to
STARTS AFTER DELAY.
3.
Pull
out
on the B
TIME/DIV
knob
and turn cw until
the intensified zone
is
the
desired length. Adjust the
INTENSITY
control
as
needed
to
make the intensified
zone
distinguishable
from the rest
of
the display. If
your
instrument
is equipped
with
a DM44, set the FUNCTION
switch
to
a
function
other
than
TIME
or
1/TIME
for
a single
delayed sweep. Dual delayed
displays
are discussed in
step
6.
4.
Adjust
the DELAY
TIME
POSITION
control
to
move
the intensified zone to cover the
portion
of
the display to
be displayed in delayed form.
5.
Set the
HORIZ
DISPLAY
switch
to
B DLY'D. The
intensified zone noted in steps 3 and 4 is
now
displayed in
delayed form. The delayed sweep rate is indicated by the
dot
on the B
TIME/DIV
knob.
6.
If
your
instrument is
equipped
with
a DM44 delayed
displays
of
two
signals can be obtained at the same time.
The DM44 will indicate the time
difference
between the
beginning
of
the delayed displays.
To
obtain
two
delayed
displays set
the
FUNCTION
switch
to
TIME
and the VERT
MODE
switch
to ALT. The DELAY
TIME
POSITION
control
positions
both delayed displays.
The
ALT
DELAY
control
positions
only
the CH 2 delayed display.
7.
For
a delayed
display
with
less jitter, set
the
B
Trigger
SOURCE
switch
to
the same
position
as
the A
Trigger
SOURCE switch and
adjust
the B LEVEL
control
for
a stable display.
NOTE
Differential
time
measurements
and
measurements
using
the TIME
or
1
/TIME
functions
of
the DM44 are
invalid
when the B
Trigger
SOURCE
switch
is
not
set
to
STARTS
AFTER DELAY.
MIXED SWEEP DISPLAYS
1.
Obtain
a normal sweep display.
2.
Pullout
on the B
TIME/DIV
knob
and
turn
cw
to the
desired sweep rate. If
your
instrument
is
equipped
with
a
DM44 set the
FUNCTION
switch to a
function
other
than
TIME
or
1/TIME
for
a
single
mixed display. Dual
mixed
displays are discussed in step
4.
3.
Set the
HORIZ
DISPLAY
switch
to
MIX. The
display
now
contains
two
sweep rates.
The
first
portion
of
the
display
is
at
the
A sweep rate
while
the latter
portion
of
the
20
466/464 DM44 Operators
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