When you use Autoset and the oscilloscope cannot determine the signal type, the
oscilloscope adjusts the horizontal and the vertical scales, then takes the Mean
and Pk-to-Pk automatic measurements.
The Autoset function is usually more useful than Autorange in the following
situations:
■
Troubleshooting one stable signal
■
Automatically seeing measurements of your signal
■
Easily changing how the signal is presented. For example, viewing only one
cycle of the waveform, or the rising edge of the waveform
■
Viewing video signals or FFT signals
Sine wave
When you use the Autoset function and the oscilloscope determines that the
signal is similar to a sine wave, the oscilloscope displays the following options:
Sine wave Details
Multi-cycle sine
Displays several cycles with appropriate vertical and horizontal scaling;
the oscilloscope displays Cycle RMS, Frequency, Period, and Peak-to-
Peak automatic measurements
Single-cycle sine
Sets the horizontal scale to display about one cycle of the waveform; the
oscilloscope displays Mean, and Peak-to-Peak automatic measurements
FFT
Converts the input time-domain signal into its frequency components and
displays the result as a graph of frequency versus magnitude (spectrum).
Refer to the FFT chapter for more information
See FFT on page 53.
Undo Autoset Causes the oscilloscope to recall the previous setup
Square wave or pulse
When you use the Autoset function and the oscilloscope determines that the
signal is similar to a square wave or pulse, the oscilloscope displays the following
options:
Square wave or Details
Multi-cycle square
Displays several cycles with appropriate vertical and horizontal scaling;
the oscilloscope displays Pk-Pk, Mean, Period, and Frequency automatic
measurements
Single-cycle square
Sets the horizontal scale to display about one cycle of the waveform; the
oscilloscope displays Min, Max, Mean, and Positive Width automatic
measurements
Rising edge
Displays the edge, and the Rise Time and Peak-to-Peak automatic
measurements
Reference
TBS1000B and TBS1000B-EDU Series Oscilloscopes User Manual 79