Tektronix 2247A

Operators Familiarization
If
DELAY
Is
selected,
the
DELAY
measurement
runs,
displaying
the
delay
time
value
In
the
top
line
of
the
readout;
the
-
OR
DELAY
knob
will
control
B
delayed
sweep
position,
and
the
-4
knob
has
no
effect.
If
Ie
1
is
reselected,
the
previously
selected
Cursor
Volts
measurement
is
restarted.
If
the
Horizontal
MODE
Is
changed
to
A
when
the
above
menu
is
displayed,
the
menu
will
disappear,
but
the
selected
Volts
cursor
measurement
will
continue.
l© VOLTS! —Measures the equivalent voltage difference between
two
horizontal
cursors
In
elther
A
Horizontal
MODE
or
X-Y
Horizontal
MODE.
Both
cursors
are
positioned
by
the
}-
OR
DELAY
control
and
the
delta
cursor
Is
positioned
by
the
>{
control.
When
the
VOLTS
cursors
measurement
is
first
turned
on
(or
recalled
as
a
last
measure-
ment
mode),
the
peak
voltages
of
the
source
channel
signal
are
measured,
and
one
SmartCursor®
is
placed
at
the
most
positive
peak
and the other is placed at the most negative peak.
7
VOLTS-1
—Measures
the
equivalent
voltage
between
the
inde-
pendent
cursor
and
ground.
A
ground
tracking
cursor
marks
the
ground
position
of
the
selected
waveform
display
in
either
A
Horizontal
MODE
or
X-Y
Horizontal
MODE.
The
ground
tracking
cursor
follows
the
ground
level
of
the
source
channel
waveform
as
It
Is
positioned
vertically.
When
initialized,
the
Independent
SmartCursor®
is
placed
on
the
most
positive
signal
peak.
(TO
AUTO
TRACKING
MENU)-—Select
the
tracking
cursor
cholces
of
page
2.
All
of
the
tracking
cursor
selections
may
be
underlined,
but
only
two
cursors
(of
elther
type—tracking
or
measurement)
may
be
displayed
at
a
time.
If
TRACK
MEASMT
Is
selected
and
a
Channel
1
or
Channel
2
Voltmeter
measurement
Is
active,
the
TRACK
/#
cursor
is
not
displayed
when
TRACK
TRIG
LVL
is
also
active.
If
the
measurement-tracking
cursor
Is
turned
off,
the
ground
tracking
cursor
will
return
to
the
display.
The
CLEAR
DISPLAY
button
may
be
used
to
turn
off
the
MENU,
MEASUREMENT,
and
TRACK
TRIG
LVL
and
TRACK
/#
cursors
ina
priority
scheme
of
three
levels.
MENU
first,
MEASUREMENT
second,
and
TRACK
TRIG
LVL
and
TRACK
/#
cursor
last.
The
highest
level
being
displayed
is
turned
off
each
tlme
the
CLEAR
DISPLAY
button
is
pressed.
2247A Operators
M
ome)
a8
E
EI
lex
t
i
ad