Tektronix 222 Operator's Manual page 61

222 DSO O~erators-How It Works
NOTE
When the SAVE location has been selected, the saved
waveform trace is also displayed along with the
acquisition waveform.
The Save Waveform menu remains displayed until the
pressed, another menu is selected, or a front panel control that
affects the acquisition is changed (SECIDIV, VOLTSIDIV, AUTO LVL:
PUSH, XI0 MAG ON). When the menu is cleared, waveform acqui-
sition restarts.
The saved waveform remains displayed at the vertical position at
which it was saved. Position the active trace away from the saved
trace to view the saved waveform. Turn off the saved waveform
trace@) by pressing the button a second time.
4.20 RECALLING SAVED WAVEFORMS
Recall saved waveforms from the RECALL WVFRM menu. The menu
displays four memory locations.
Once saved, a waveform may be recalled for display at any time.
Waveforms saved in Y-T display format will be recalled in Y-Tformat;
those saved in X-Y format will be recalled for display in X-Y format.
The parameters of the latest recalled waveform are also displayed
(see Figure
3-4).
Press
m,
1 1 1 -
to recall the waveform saved in
memory 1 for display. Displayed waveform memories are boxed
in the menu display.
NOTE
Attempting to recall a waveform from an empty
memory causes an audible alarm to sound, and the
menu remains displayed.