Agilent Technologies 1670G Autoscale

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Using the Oscilloscope

Oscilloscope Common Menus

Autoscale

Autoscale is an algorithm that automatically optimizes the display of

one or more waveforms. When you select the Autoscale field and

choose Continue, the autoscale algorithm starts.

The autoscale algorithm first checks all input channels to determine

whether or not there are any signals present. The vertical scaling is

then set as required for each channel. Next the time base is scaled for a

single input channel, the trigger channel is selected, the data is

acquired, and the waveforms are displayed.

Finding the vertical settings. The autoscale algorithm sets the

vertical scaling (V/Div and offset) appropriate to the input signal for

channel 1. This process is repeated for channel 2.

Finding the time base settings. The time base settings (s/Div and

delay) are determined based on the input signal of Channel 1 (if active)

or Channel 2. The time base is scaled so that between two and five

complete cycles of the time base scaling source input signal can be

seen on the screen. The trigger settings are also changed by the

autoscale algorithm and an edge mode trigger with CHAN 1 or CHAN 2

is selected. The channel selected for time base scaling is selected as

the trigger source.