Specifications

OPTIONS
Your4658maybeequippedwithoneormoreinstrumentoptions.Abriefdescriptionofeachoptionisgiveninthe
following
discussion.
unique
.no
.or"
a"tuir"J
operating
information
pertaining to
options
05
and
07
are
presented
on
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this
sectton.
porlurtt.i
information
on
instrument
options,
see
vour
Tektronix
catalos
or
contact
vour
Tektronix
Field Otfice
or
representative'
GENERAL
DESCRIPTION
oPTloN
01
This
option
deletes
the
temperature
probe
from
the
DM44.
oPTION
04
The
instrument
is
modified
to
meet
certain
specifica-
tions
related
to
radiated
interference
requirements'
This
option
does
not
affect
the
basic
instrument's
operating
instructions
presented
in this
manual'
oPTloN
05
option
05,
when
installed
in
the
4658
oscilloscope,
adds
a
TV
sync
separator
and
other
changes
to
provide stable
sweep
triggering
from
composite
video
waveforms'
Two
poritions
-arc
added
to
the
A
TRIGGER
COUPLING
switch:
TV
FIELD
and
TV
LINE.
When
these
positions
are
selected,
the
A
Sweep
may
be
triggered
at
the
Field or
LineratewiththeATR|GGERLEVELcontrol.ATV
LINE
position
is
added
to
the
B
TRIGGER
SOURCE
switch.
ln
this
position, the
B
Sweep
may
be
triggered
at
the
line
rate.
option
05
circuitry
accepts
sync'positive
or
sync-negative
video
from
Channel
1, Channel2'
or
external
input.
Recognition
circuits
accommodate
405''
525''
and
625-line,
50
or
60
Hz
field-rate
broadcast
systems
and
are
compatible
with
closed-circuit
systems
with
up to
1201'
line,
60
Hz
field
rates.
@
96
4658/DM44
OPerators