Triggers 11
Keysight InfiniiVision 3000T X-Series Oscilloscopes User's Guide 173
 
• Alternating edges — Useful when you want to trigger on both edges of a clock 
(for example, DDR signals).
• Either edge — Useful when you want to trigger on any activity of a selected 
source.
Rising and Falling edge modes operate up to the bandwidth of the 
oscilloscope. Other modes operate up to the bandwidth of the oscilloscope or 
1 GHz, whichever is smaller.
The selected slope is displayed in the upper-right corner of the display.
Using Autoscale to
Set Up Edge
Triggers
The easiest way to set up an Edge trigger on a waveform is to use Autoscale. 
Simply press the [Auto Scale] key and the oscilloscope will attempt to trigger on the 
waveform using a simple Edge trigger type. See “Use Autoscale" on page 34.
MegaZoom Technology Simplifies Triggering
With the built-in MegaZoom technology, you can simply Autoscale the waveforms, then stop 
the oscilloscope to capture a waveform. You can then pan and zoom through the data using 
the Horizontal and Vertical knobs to find a stable trigger point. Autoscale often produces a 
triggered display.