Tektronix 2247A

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Basic Applications
Introduction
The
TEKTRONIX
2247A
Oscllloscope
provides
an
accurate
and
flexible
measurement
system,
After
becoming
famillar
with
the
controls,
indi-
cators,
menus,
and
capabllities
of
the
Instrument,
you
can
develop
convenient
methods
for
making
special
measurements
for
your
own
appll-
cations.
The
measurements
given
In
this
section
are
examples
of
typical
applications
that
may
assist
in
developing
efficient
techniques
for
your
specific
measurements.
A
brief
description
of
how
the
graticule
markings
are
used
In
making
measurements
Is
given
In
Section
3
of
this
manual.
When
a
procedure
calls
for
“Initial
Setup”
or
“Auto
Setup
Function,”
refer
to
the
“OPERATOR
CHECKS
AND
ADJUSTMENTS”
Section
4.
Certain
signals
such
as
video
or
aperiodic
signals
(non-repeating)
and
signals
con-
taining
many
unrelated
frequency
components
may
require
more
trigger
signal
conditioning
and/or
holdoff
to
obtain
the
best
display.
CH
1/CH
2
Voltmeter
Measurements
The
CH
1/CH
2
Voltmeter
measurements
are
continuous
measurements
of
the
DC,
+PEAK,
-PEAK,
or
PK-PK
values
of
an
applied
signal.
The
measurement
value
Is
displayed
In
the
crt
readout.
Measurement
tracking
and/or
ground
tracking
cursors
may
be
displayed
to
give
the
user
Instant
feedback
about
where
on
the
applied
signal
the
measurement
is
being
made
and
the
location
of
ground
level.
NOTE
A
maximum
of
eight
waveforms
are
allowed
to
be
displayed
when
making
Voltmeter
measurements
of
DC,
+Peak,
-Peak,
or
Peak-to-Peak
measurements
while
in
Horizontal
ALT
Mode.
The
ADD
mode
waveforms
will
not
be
displayed
while
making
voltage
measurements
if
Vertical
Channels
1
through
4
are
being
displayed
with
their
Delayed
waveforms
(Horiz
ALT
Mode
selected).
GATED
modes
of
+PEAK,
-PEAK,
and
PK-PK
measurements
may
be
used
to
define
the
area
of
the
measurement
on
the
displayed
waveform.
The
position
and
width
of
the
gated
region
Is
displayed
as
an
intensified
zone
on
the
A
trace
of
the
waveform
display.
Position
of
the
gated
region
on
the
waveform
Is
controlled
by
the
«+
OR
DELAY
control,
and
width
of
the
gated
region
Is
controlled
by
the
-{
control.
2247A
Operators
5-1