Force Trigger; Alternating Trigger Mode Setting - Tenma 72-2650 Operating Manual

Figure 2-16 Observing Signals with Two
Different Frequencies by Alternating
Trigger Mode
Table 2-10 Alternating Trigger Mode Setting
Function Menu Settings
Edge
Type
Trigger source Alternating CH1 and CH2 alternating trigger
Slope Ascending
Trigger mode
Automation
Trigger coupling AC
30
Description
Edge-triggered mode is set
Rising edge is set for trigger slope
Auto-triggered mode is set
AC trigger coupling mode is set
72-2650/72-10510/72-8225A /72-8705A/72-8710A user manual

Force trigger

Force trigger can be understood as forcing the DSO to
refresh the data acquisition process, so the user can
observe the waveform being captured. To enable the force
trigger, press the FORCE button. One of the very
useful applications for force trigger is at the "normal" and
"single" triggering mode. When the triggering signal
does not present, DSO will stop data acquisition. You can
press the force trigger to re-enable the data acquisition of
the DSO to see the current input signal.
Explanation of nouns
1. Trigger source: trigger can be achieved from several
signal sources: input channels (CH1 and CH2), external
triggers (EXT and EXT/5) and AC line.
■External trigger (EXT TRIG): meaning to set the
triggering source base on given external connection to
the "EXT TRIG" input channel. This can be a significant
application for 72-2650/72-10510/72-8225A /72-8705A/
72-8710A to perform d a t a acquisition using CH1 and
CH2 based on an external clock signal connects to the