--
reordered data points between adjacent sample inter-
vals. If the change
in
value does not exceed certain lim-
its, the values are interpreted
as
a continuous slope for
drawing either vectors or dots. If the value change
exceeds the interpreted "no-change" limit, the data
point value
is
not modified,
and
the vectors drawn
in
the display show a discontinuity
in
the waveform. This
method of display of the waveform data provides a
smoothed display of the waveform, yet retains the
glitch-catching capabilities of PEAKDET or ACCPEAK
modes.
In
a range
of
5 s per division to
0.1
s per divi-
sion, SMOOTH will function with only ACCPEAK.
DEFAULT
Selects the default acquisition modes for
all
sweep
speeds
(see
Table 3-2 for the default modes).
FORMATTING
FORMATTING selects a SAVE
REF
memory for
formatting.
The
vertical gain, horizontal gain,
and
vertical
position of the selected reference waveform may
be
changed.
The
acquisition mode used to store the
waveform may also
be
displayed.
TARGET REFERENCE-Selects
one
of the SAVE
REF
memories for formatting.
VGAIN-Allows
adjustment of the vertical gain of
SAVE
REF
memories.
VPOSITION-Allows adjustment of the vertical position
of SAVE
REF
memories.
HMAG-
Turns
X1
O horizontal magnification of SAVE
REF
memories
on
or off.
MODE-Displays
the parameters used to acquire a
SAVE
REF
memory.
PLOT
PLOT controls the transmission of waveforms over the
X-
Y Plotter output.
START-Initiates
the transmission of a waveform over
the
X-Y
Plotter output.
GRATICULE ON/OFF-Enables or disables plotting of
the graticule.
SET
UP-Allows
calibration of analog plotter gain
and
offset.
Controls, Connectors,
and
lndicators-2230 Operators
SPEED-Allows selection of plotter
pen
speed.
ADVANCED FUNCTIONS
REFERENCE-Allows a SAVE
REF
memory to
be
Erased or Copied when one of the communication
options
is
installed.
ERASE-Selects
and
erases a nonvolatile SAVE
REF
memory.
COPY-Selects
and
copies one nonvolatile SA
VE
REF
memory to another SAVE
REF
memory.
COMM-Allows the selection of parameters for optional
communications options, when they are present.
ACQ
MODE
SETUP
TREE-Controls
the acquisition
mode setup using a tree. This provides control of the
same functions
as
the ACQ MOD SETUP TABLE.
DEFAULT-Selects the default acquisition modes
for
all
sweep speeds
(see
Table 3-2 for the default
modes).
REPETITIVE-Selects the acquisition modes for
sweep speeds from 0.05
µs
to 2
µs
per division.
FAST RECORD-Selects the acquisition modes for
sweep speeds from 5
µs
to 10
µs
per division.
SLOW
RECORD-Selects the acquisition modes for
sweep speeds from
20
µs
to
50
ms
per division.
SLOW TRIGGERED-Selects the triggered acquisi-
tion modes for sweep speeds from
0.1
to 5 s per
division or EXT CLOCK.
SLOW
UNTRIGGERED-Selects the untriggered
acquisition modes for sweep speeds from
0.1
to
5 s
per division or
EXT
CLOCK.
DIAGNOSTICS-Controls the selection of diagnostic
TESTS, EXERCISERS,
and
PICTURES.
Acquisition Modes
PEAK
DETECT (PEAKDET)
and
SAMPLE-Select how
samples
are
processed
on
successive acquisitions.
See
Table 3-2 for the default modes set
by
the SEC/DIV
switch.
3-15
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