Tektronix 2246 User Manual

Measurement
Processes
and
Applications
2246
Operators
The
small
dot
size
is
also
a
convenient
marker
for
mak-
ing
quick,
but
not
the
most
accurate,
time
measurements.
Simply
position
the
dot
to
the
first
point
of
interest
to
be
=
measured
from,
and
note
the
delay
time
setting
shown
in
4
the
crt
readout.
Then,
position
the
dot
to
the
second
point
of
interest,
and
again
note
the
delay-time
setting.
The
time
difference
is
calculated
by
subtracting
the
first
number
from
the
second
(or
the
smaller
from
the
larger),
ee
/\
Using
the
B
delayed
traces
in
ALT
Horizontal
MODE
Fr
IN
4
|
permits
the
most
accurate
measurement
of
time
difference
.
h
;
to
be
made.
The
method
described
uses
the
center
vertical
SBRNERZERE
graticule
line
as
a
measurement
reference
point.
Use
the
following
procedure
as
a
guideline
for
making
delay-time
measurements.
1.
Set
up
the
signal
to
be
measured
and
the
front
=
panel
controls
as
indicated
in
steps
1
and
2
ofthe
+PEAK
Bruns
va
VOLTAGE
MEASUREMENT
procedure.
ANN
fe
|
2.
Select
an
A
SEC/DIV
setting
that
produces
an
A
|
VI
AN
V
trace
long
enough
to
display
both
measurement
points
of
|
7
N
interest
on
the
waveform.
DAI
3.
Switch
to
ALT
Horizontal
MODE,
and
advance
the
|
N
AS
A
B
SEC/DIV
setting
three
positions
faster
than
the
A
BEM
u
Er)
SEC/DIV
setting
(if
possible).
You
may
set
the
BSEC/DIV
au
|
setting
faster
than
three
positions
if
you
wish,
in
which
=
DEZ
case,
the
intensified
zone
on
the
A
trace
becomes
even
more
necessary
as
an
aid
in
identifying
the
measurement
points.
|
4.
Set
the
input
channel
VOLTS/DIV
setting
to
produce
a
two-to-three
division
vertical
display.
Position
the
display
|
in
the
upper
half
of
the
graticule
area
(above
the
center
horizontal
graticule
line).
Tey arme
NOTE
if
more
than
one
vertical
channel
is
being
displayed,
a
more
viewable
display
is
obtained
by
reducing
the
vertical
display
amplitude
to
about
one
division
in
amplitude,
Then,
use
the
Vertical
POSITION
control
and
TRACE
SEP
controls
to
organize
the
displayed
traces
in
an
order
that
permits
the
traces
to
be
identified.
Up
to
ten
traces
may
be
displayed
at
a
time;
however,
extra
channel
traces
not
involved
in
making
a
measurement
should
be
turned
off
to
elim-
inate
possible
confusion.
Figure
6-14.
Making
a
phase
difference
measurement.
set
the
delay
time
to
a
point
of
interest
on
the
displayed
5.
Use
the
TRACE
SEP
control
to
position
the
alter-
waveform
for
expansion
using
the
faster
B
Sweep
speeds.
nate
B
delayed
trace
in
the
lower
half
of
the
graticule
area
6-16
|

Tektronix 2246 Specifications

General

Brand	Tektronix
Model	2246
Category	Test Equipment
Language	English