Tektronix TDS 510A, Instruction Manual, Page: 90 / 116

Performance Tests
1–76
TDS 510A Performance Verification and Specifications
Figure 1–38: Sync Duty Cycle Test: One-Div Neg Pulse Waveform
Turn the pulse generator PULSE DURATION variable control to
adjust the negative pulse so the oscilloscope CH1 – Width
measurement displays 400ns +/–10 ns.
Turn the HORIZONTAL SCALE knob to set the oscilloscope time
base to 5
m
s/div.
Turn the pulse generator PERIOD variable control to adjust the
period until the oscilloscope CH1 Period measurement reads
21.000
m
s –25/+50 ns. See Figure 1–39. Read note shown below.
NOTE
. The pulse duration and period adjustments are critical in making this
measurement. If the pulse duration and/or the duty cycle are not stable, the
FLEXFMT function may not function. You must take care when making these
adjustments.