EEVblog #685 - What Is Oscilloscope AC Trigger Coupling?

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In this tutorial Dave describes what AC trigger coupling is on an oscilloscope and why it can be useful. Not only on old analog CRT oscilloscopes, but modern digital scopes as well.
How and why is it different to AC channel input coupling?
Also, use of the 50% trigger control, and how the venerable DS1052E is still more usable than the new DS1054Z.

Previous video on Rigol DS1054Z and DS2000 Jitter Problem
https://www.youtube.com/watch?v=kcOdzFaIYNE

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Tags:
oscilloscope
ac coupling
trigger
tutorial
how to
rigol
ds1054z
ds2000
agilent
tektronix
input coupling
trigger signal
function generator
crt
analog oscilloscope
ds1052e
jitter
problem