External Sweeps
External sweeps are a special type of sweep in which the ATS-1 Access
generator does not perform the stimulus changes they come directly
from the device-under-test, usually from a test tape, test CD, or
remotely located sweep source.
The analyzer expects an externally-applied sinewave signal to change
either upwards or downwards in frequency or amplitude. The signal
may change in discrete steps or in a continuous glide. If a
gliding-frequency tone is used, it must change no faster than five
seconds per octave (50 seconds for a 20 Hz 20 kHz sweep).
The ATS-1 Access will take readings from a number of points during
the sweep and plot them on the graph at the measured amplitude or
frequency.
Printing
The ATS-1 Access has the ability to print directly to a printer connected
to the external printer port located on the rear panel of the instrument.
The ATS-1 Access can print a text output of the current settings and
readings, exact images (or screen dumps) of some screens, and
tabular, hi-resolution, or screen dump printouts from sweep data.
The printer must be compatible with either the Epson/IBM
dot-matrix/ink jet standard or the PCL ink jet/laser jet standard.
Before doing any printing, the correct output format for your printer
must be selected. This selection takes place on the Setup panel. To
get to the Setup Panel, press the PANELS key until you see this screen:
The upper left soft key selects the type of printer output. The choices
are IBM GRAPH and PCL GRAPH.
Figure 4-38. Setup panel
& For more
information on the
printer connector,
see page 3-26.
4 Functions
Printing Function Descriptions
4-46 ATS-1Access User's Manual
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