TDS310 datasheet(78/242 Pages) ETC2

78 / 242 page

Triggering

Operation

326

Figure 314:The Edge Trigger Menu

Use the edge trigger menu to perform these tasks.

Select the Trigger Source

Press the main menu button Source. Use

the side menu to select from these options.

H Press Ch1 or Ch2 to set the trigger source to one of the input channels.

H Press Ext or Ext/10 to set the trigger source to the EXT TRIG input on the

front panel. Ext/10 attenuates the external input signal by a factor of ten.

Note that while the instrument can trigger on external trigger signals, it

cannot display them.

H Press AC to set the trigger source to the oscilloscope line voltage signal.

Select Trigger Coupling

Press the main menu button Coupling. Use

the side menu to select from these options.

H Press DC to select DC coupling.

H Press AC to select AC coupling.

H Press HF Reject to select high frequency reject mode. High frequency

rejection removes the high frequency portion of the triggering signal. This

allows only the low frequency components to pass on to the triggering

system. High frequency reject mode attenuates signals above 30 kHz.

H Press LF Reject to select low frequency reject mode. Low frequency

rejection is the opposite of high frequency rejection. Low frequency reject

mode attenuates signals below 80 kHz.

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