Tektronix 1S1 Instruction Manual page 121

Calibration – Type 1S1
Fig. 5-62. Typical indicator oscilloscope displays for checking
display or triggering jitter. Measure the effective width of the
trace containing 80% of the display dots.
d. Adjust the variable attenuator and/or signal source
for the indicated display amplitude.
e. With the TIME POSITION and FINE controls, position
the most vertical portion of the waveform between the 5-cm
and 6-cm graticule lines (see Fig. 5-62).
f. Set the mVOLTS/CM switch to the "readout'' position in
the table.
g. Check the time jitter of the waveform as indicated
by horizontal thickness of the trace. Maximum jitter speci-
fications for properly triggered displays are given in the
table.
h. After completing all the checks, disconnect the at-
tenuators, cables and connectors.
5-58
Fig. 5-63. Suggested connections for checking triggering
jitter.