Performance Tests
1–82 TDS 500C, TDS 600B & TDS 700C Performance Verification and Specifications
Figure 1–39: Sync duty cycle test: one-div neg pulse waveform
HTurn the pulse generator PULSE DURATION variable control to
adjust the negative pulse so the oscilloscope’s CH1 – Width
measurement displays 400ns +/–10 ns.
HTurn the HORIZONTAL SCALE knob to set the oscilloscope time
base to 5ms/div.
HTurn the pulse generator PERIOD variable control to adjust the
period until the oscilloscope CH1 Period measurement reads
21.000ms –25/+50 ns. See Figure 1–40. 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.