Tektronix 2247A

4
®
a
Basic Applications
NOTE
The TRACK MEASMT cursor may be displayed with the
waveform. Pressing CLEAR DISPLAY in the Initial setup re-
moves the measurement tracking cursor from the display
(and also cancels the measurement) but does not disable
the feature once it has been enabled; the next time a
CH 1/CH 2 Voltmeter measurement mode is called for, the
measurement tracking cursor is again displayed.
5. Press the CURSOR VOLTS button and display page 2 of the menu by
selecting the (TO AUTO TRACKING MENU) choice. Of the three
features available In page 2, select both TRACK MEASMT and TRACK
7h. Menu labels are UNDERLINED when the function Is enabled. The
TRACK 7 cursor Is especially useful for providing feedback to the user
about dc offset of the signal from ground level.
NOTE
In this menu, the select buttons toggle the choices on and
off with each press, and all three choices may be selected
(but not all displayed together because only two cursors are
allowed). Also, pressing CLEAR DISPLAY (as many as three
times may be necessary) does turn off the TRACK TRIG LVL
and TRACK sh choices.
6. Press elther MENU OFF (in the menu selectlon list) or CLEAR DISPLAY
(once) to remove the AUTO TRACKING menu from the display.
NOTE
if VOLTMETER PK-PK measurement Is selected, two
TRACK MEASMT cursors are required; therefore, the
TRACK /h cursor will not be displayed.
7. See Figure 5-1. The test signal used for the example has a dc offset
(as shown by the position of the TRACK ah cursor) and +PEAK value
(peak ac + dc) as Indicated by the voltage readout.
2247A Operators 5-3