Tektronix 2221A - Appendix C: Performance Verification; Step 7: Check Repetitive Store Mode and Bandwidth; Step 8: Check Single Sweep Sample Acquisition

Appendix C: Performance Verification
H Step 7: Check Repetitive Store Mode and Bandwidth
a. Set:
CH 2 VOLTS/DIV 10 mV
SEC/DIV 0.2 ms
b. Set the generator to produce a 50 kHz, six division display.
c. Set:
SEC/DIV 0.05 ps
X10 Magnifier On (knob out)
d. Set the generator to produce a 100 MHz display.
e. Set:
STORE/NON-STORE STORE (button in)
SAVE/CONT CONT
NOTE
Allow the points to accumulate for a few seconds before saving the
display.
f. Press in the SAVE/CONT button to select SAVE.
g. CHECK — The 100 MHz display is saved.
h. CHECK — Display amplitude is 4.2 divisions or greater.
i. Press in the SAVE/CONT button to select CONT.
j. Set the Vertical MODE switch to BOTH and ALT.
k. Repeat parts 1 through h.
["I Step 8: Check Single Sweep Sample Acquisition
a. Set:
Vertical MODE
SEC/DIV
X I0 Magnifier
Trigger Mode
SOURCE
SAVE/CONT
b. Set the generator to produce
c. Press in the Trigger Mode SG
CH 2
5 ps
Off (knob in)
NORM
CH 2
CONT
50 kHz, six division display.
SWP button.
d. Set the generator output to 2 MHz.
e. Press in the Trigger Mode SGL SWP button.
f. CHECK — the minimum peak-to-peak envelope amplitude is greater
than 5.6 divisions.
A-34
Appendices