Setting Trigger Position - Tektronix 222 Operator's Manual

222 DSO Operators-How It Works
ERA SETUPS:
222
Digital Storage
Oscilloscope
To erase all the setup memories at once:
Press ( ..
ml,
ERASE ALL
-8J
The menu clears when the ERASE ALL selection is made.
4.24 SETTING TRIGGER POSITION
The distribution of waveform data points around the trigger event is
determined by the TRIG POS setting for waveforms acquired in
STORE mode. Trigger position is selected from the TRIG POS menu.
In NONSTORE mode, the trigger position is always set at the sixth
data point; it is not adjustable. Changes made to the TRIG POS
setting in NONSTORE mode will take effect when STORE mode is
selected again.
To display the menu:
mm
Press the
L!.2!A
button.
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TRIG POS:
(~ronix
222 DSO Operators-How It Works
POST
IM1ol
PRE
m
222
Digital Storage
J
Oscilloscope .
mm
Press the
L:£U
button repeatedly with the menu displayed to
cycle through the menu choices. Press
Hnml
to remove the menu
after the correct selection has been made. Calling up another
menu also removes the TRIG POS menu from the display.
OR
Press POS,.--.0 to acquire the majority of data points after
the trigger event.
Press Mlo-C:J to acquire data points divided evenly on
both sides of the trigger event.
Press PRE--c:J to acquire the majority of data points from
prior to the trigger event.
The menu clears and the normal acquisition readouts return
when a direct selection has been made.
REV APR 1990
4-19