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Tektronix 2246 User Manual

Tektronix 2246
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Controls,
Connectors,
and
Indicators—-2246
Operators
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£
6083-04
Figure
3-2,
CH
1
and
CH
2
Vertical
Controis
and
indicators.
UNCAL
Indicator-—indicates
that
either
or
both
VOLTS/DIV
VAR
controis
are
out
of
their
calibrated
detent
position.
BW
LIMIT
Button—Reduces
the
bandwidth
of
the
vertical
deflection
system
to
between
17
MHz
to
23
MHz
when
the
button
light
is
on.
Full
vertical
deflection
bandwidth
is
available
when
the
BW
LIMIT
button
light
is
off.
INVERT
Button—inverts
the
Channel
2
input
signal
when
the
INVERT
button
light
is
on.
Both
the
Channel
2
input
signal
in
ADD
mode
and
the
Channel
2
trigger
signal
pickoff
are
also
inverted.
A
down-arrow
symbol
appears
on
the
readout
between
the
Channel
1
and
Channel
2
VOLTS/DIV
switch
settings
to
indicate
INVERT
mode
is
on.
COUPLING
Buttons—-Select
the
method
of
coupling
input
signals
to
the
Channel
1
and
Channel
2
vertical
attenuators
and
indicate
the
selection
made.
GND—Disconnects
the
input
signal
and
grounds
REV
APR
1987
the
input
of
the
associated
vertical
attenuator
to
provide
a
zero
(ground)
reference
voltage
display.
The
input
to
the
vertical
attenuator
is
grounded
when
the
AC
and
the
DC
button
lights
are
both
off.
A
ground
symbol
{rh}
appears
on
the
right
side
of
the
associated
VOLTS/DIV
readout
display.
The
ground
symbol
also
appears
after
the
value
readout
of
any
of
the
CH1/CH2
VOLTME-
TER
measurements.
AC--Capacitively
couples
the
input
signal
to
the
vertical
attenuator
when
the
AC
button
light
is
on.
Turning
AC
coupling
on
turns
DC
coupling
off.
With
AC
coupling,
the
de
component
of
the
input
signal
is
blocked.
The
lower
—3
dB
frequency
limit
is
10
Hz
or
less
when
using
either
a
1X
probe
or
properly
terminated
coaxial
cable;
it
is
1Hz
or
less
using
a
compensated
10X
probe.
»
With
AC
Coupling
selected,
an
AC
symbol
(~)
appears
on
the
right
side
of
the
associated
VOLTS/DIV
readout
display.
Selecting
the
DC
measurement
of
the
CH1/CH2
VOLTMETER
choices
when
AC
Input
Coupling
is
in
effect
for
the
measurement
source
channel,
causes
the
3-3

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Tektronix 2246 Specifications

General IconGeneral
BrandTektronix
Model2246
CategoryTest Equipment
LanguageEnglish

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