Random sampling is a sampling oscilloscope technique that allows viewing of the pre-trigger regions of the waveform, as well as the actual trigger event and after the trigger event.
In some applications, it eliminates the need for a delay line in the vertical signal path, thereby avoiding the signal integrity problems of delay lines.
- George Frye and Norris S.Nahman, Random Sampling Oscillography. IEEE Transactions on Instrumentation and Measurement (Volume IM-13 Issue 1, March 1964)
- Jim Andrews, Random Sampling Oscilloscope for the Observation of Mercury Switch Closure Transition Times.