TDS 620A, 640A, & 644A User Manual
2Ć1
Overview
This section describes the basic concepts of operating the digitizing oscillo-
scope. Understanding the basic concepts of your digitizing oscilloscope will
help you use it much more effectively.
The first part,
At a Glance
, quickly shows you how the oscilloscope is orga-
nized and gives some very general operating instructions. It also contains an
overview of all the main menus. This part includes:
H
Front Panel Map
H
Rear Panel Map
H
Display Map
H
Basic Menu Operation
H
Menu Map
The second part explains the following concepts:
H
The triggering system, which establishes conditions for acquiring sig-
nals. Properly set, triggers can convert displays from unstable jumbles or
blank screens into meaningful waveforms. See
Triggering
on
page 2-13.
H
The acquisition system, which converts analog data into digital form.
See
Acquisition
on page 2-19.
H
The waveform scaling and positioning system, which changes the
dimensions of the waveform display. Scaling waveforms involves increas-
ing or decreasing their displayed size. Positioning means moving them
up, down, right, or left on the display. See
Scaling and Positioning Wave-
forms
on page 2-25.
H
The measurement system, which provides numeric information on the
displayed waveforms. You can use graticule, cursor, and automated
measurements. See
Measurements
on page 2-30.
At the end of each topic,
For More Information
will point you to sources where
more information can be found.
To explore these topics in more depth and to read about topics not covered in
this section, see
Reference.
Page 3-1 lists the topics covered.
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