Tektronix 2212 User Manual page 171

General Product Description
If the ADD, ALT or CHOP mode is selected in Store mode, the sig-
nals applied to the vertical input connectors are acquired
similtaneously. However, if the vertical mode is in ALT and the
trigger source is in VERT MODE, CH
1
and CH 2 will be digitized
alternately.
2212 User Manual
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