Tektronix 2221A User Manual

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P I Step 2: Check Store Differentia! and Cursor Time Difference Accuracy
a.
b.
c.
d.
e.
f.
g-
h.
i.
k.
m.
n.
o.
p.
Set: CH 1 AC-GND-DC
SEC/DIV
X I0 Magnifier
STORE/NON-STORE
GND
0.1 ms
Off (knob in)
STORE (button in)
Use the CH 1 POSITION control to center the base line vertically
and the Horizontal POSITION control to align the start of the trace
with the 1st vertical graticule line.
Using the CURSORS control and SELECT C1/C2 (push in the
CURSORS control knob) switch, select one of the two cursors and
set it exactly on the 2nd vertical graticule line. Select the other cursor
and move it towards the right until the AT readout displays
0.800 ms,
CHECK— Graticule indication of cursor difference at the 10th verti
cal graticule line is within 0.16 division.
Set the CH 1 AC-GND-DC switch to DC.
Select 0.1 ms time markers from the time-mark generator.
Align the 2nd time marker with the 2nd vertical graticule line using the
Horizontal POSITION control.
Press in the SAVE/CONT button to select SAVE for a stable display.
Use the CURSORS control and SELECT C1/C2 (push in the CUR
SORS control knob) switch to set the first cursor on the trailing edge
of the 2nd time marker.
Press in the CURSORS control knob again to activate the second
cursor.
Set the second cursor on the trailing edge of the 10th time marker at
the same voltage level as on the 2nd time marker.
CHECK — The AT readout is between 0.798 ms and 0.802 ms.
Press in the SAVE/CONT button to select CONT.
Set the SEC/DIV switch to 0.5 ps.
Select 0.5 ps time markers from the time-mark generator.
Align the 2nd time marker with the 2nd vertical graticule line using the
Horizontal POSITION control.
NOTE
Allow the points to accumulate for a few seconds before saving the
display.
q. Repeat parts h through k.
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A-40
Appendices
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Tektronix 2221A Specifications

General

Brand	Tektronix
Model	2221A
Category	Test Equipment
Language	English