Tektronix 465M User Manual

AIR FORCE
T033A1-13-496-1
NAVE
LEX
0969-LP-170-0010
Operation
Instructions
Table
4-2.
Functions of Controls,
Connectors, and
Indicators—
Continued
Figure/index
no.
Control,
connector,
or
indicator name
Function
FO-1/14
(continued)
CH
2 OR
X-Y:
Displays only signals applied
to the CH 2 input con-
nector.
Must be selected for
X-Y
operation.
TRIG VIEW
or 20
MHz
BW:
Three
position switch. When
pulled
out,
the bandwidth
of the vertical deflection
system is limited
to 20 mega-
hertz;
when pushed part way in the vertical
bandwidth is
normal; and
when pushed completely in
and
held,
the signal applied
to the
A
Sweep trigger generator is displayed.
15 VOLTS/D IV
Outer ring portion of the control selects
the vertical deflection
factor
in
a
1-2-5
sequence.
Factors are calibrated when
the VAR portion
of the
controls is in
its
fully
clockwise detent position.
16 VAR
Inner
knob
portion of the VOLTS/DIV
control. Provides continuously
variable
uncalibrated vertical deflection
factors between calibrated
settings.
Extends the maximum vertical deflection
factor
to
125
volts/division
when using
a
10X probe. This
control must be in
its
fully clockwise
detent position for calibrated
deflection factors.
17
Deflection Factor
Indicator
A light colored area under the VOLTS/DIV
control
skirt, which indi-
cates the vertical deflection
factor associated with the probe
being
used. Check the attenuation
factor of
the
probe and
use the cor-
respondingly marked
light colored area.
18 UNCAL Indicator
Indicates when
the
VAR
portion of the VOLTS/DIV
control is
out of
its fully clockwise detent
position and uncalibrated deflection
factors
are being used.
19 AC-GND-DC
Selects the method of coupling the input
signal
to
the vertical
input
amplifier.
AC: Input signals are capacitively
coupled, blocking any
dc component.
Low frequencies
are attenuated about 3
dB at 10
hertz
using
a IX
probe and
at 1
hertz using
a 10X probe. Ac coupling
may cause
tilting
of square wave signals below about
1 kilohertz.
GND: Connects the vertical input
amplifier
to
ground
to provide
a
ground reference
display
(input
signal
is
disconnected).
Connects
the
input
signal
to
ground through the
ac input capacitor
and
a
one
megohm resistor
to
keep the input
coupling capacitor
precharged.
DC: Input signals
are directly coupled, thus
passing all components
of the
signal
to
the input amplifier.
20
Vertical
Channel
In-
input
Connectors
Connects
the Channel
1
and
Channel
2 vertical
input
probes
to the in-
strument.
In
the
X-Y
mode
of
operation,
the CH
1 OR
X input
pro-
vides
horizontal
deflection
and
the CH
2 OR Y
input
provides
vertical
deflection.
21
POSITION
Provides
vertical
positioning
control
of the
display.
In the X-Y
mode of
operation,
the
CH
1
OR
X control
positions
the
display
horizontally
and
the CH
2 OR Y
control
positions
the
display
vertically.
22
INVERT
Inverts
the
Channel
2 display
only.
4-31

Tektronix 465M Specifications

General

Brand	Tektronix
Model	465M
Category	Test Equipment
Language	English