| #19: How to get a stable scope display with two signals very close in frequency W2AEW |
| #19: How to get a stable scope display with two signals very close in frequency This video shows how to setup a scope, analog or digital, to give you a stable display of two signals that are very close in frequency. The problem usually arises that the two signals are from different sources, or are not phase locked, and one of them "walks" on the display while the other is stable. This is because there will almost always be a very small difference in frequency between the two. The video shows how to setup the appropriate trigger mode on an analog scope to get a stable display of both waveforms, or how to use a single-sequence (single acquisition) on the digital scope to accomplish the same thing. https://youtu.be/j4IxbF0oFRE |