Horizontal Controls
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TDS3000B Serie s User Manual
Key Points
Maximum Zoom Magnification Factor. If you are using Normal
acquisition resolution, the maximum horizontal magnification factor
is 200X; in Fast-trigger the maximum is 10X.
Horizontal Zoom and Preview. There are two ways you can magnify a
stopped acquisition, horizontal zoom or preview. The differences in
how horizontal zoom and preview interact with other functions are
shown below.
Function Horizontal zoom Horizontal preview
Horizontal SCALE Sets magnification factor Changes time base for
the next acquisition
Horizontal POSITION Selects portion of wave-
form to magnify
Changes trigger position
or delay time for the next
acquisition
DELAY button Turns delay on and off Turns delay on and off
Math waveform Remains valid; magnifies
and positions with other
waveforms
Remains fixed; does not
track changes to channel
waveforms
Cursors and automatic
measurements
Remain functional with
valid readouts
Remain locked to chan-
nel waveforms
Gray-scale Gray-scale information
may be temporarily re-
duced
Gray-scale information is
lost
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