Chapter 3 Measurement Setup Operations; The Recording Area - HP 7090A Operator's Manual

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Measurement Setup Operations
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Before performing a measurement on the HP 7090, several front-panel
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operations are necessary. Most of these operations involve specifying setup
conditions appropriate for your measurement application. For example,
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TOTAL TIME is used to establish the recording time; the
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used match the sensitivity and range of the HP 7090
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signal(s). Front-panel operations can also be used to draw a scaled grid to
receive the measurement plot.
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This chapter describes how to perform these measurement setup operations.
Information is also provided on how to connect analog input signals
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HP 7090. After you become familiar with the material presented here, you
will be ready to perform the direct and buffered recording procedures
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discussed in Chapter Four.
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The Recording Area

The direct and buffered recording modes can be used
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plots ofinput signal data. Data is plotted or "mapped" onto a specified area
of the paper - a rectangular coordinate system called the
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The following illustration shows a hardcopy plot of a Channel 1 input
signal measured against time. The recording area is the area covered by
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the grid. (The axes labels shown in this and subsequent illustrations were
:y not achieved using front-panel operations. Labeling of the axes can be
accomplished. however, by issuing instructions to the HP 7090
� HP-lE interface. Refer
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to the Interfacing and Programming Manual.)
TIME (MILLISECONDS)
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RANGE setting(s) are
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to produce hardcopy
recording area.
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A Recordinx Area
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Measurement Setup Operations
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