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Performance Tests
2-40
TDS5000B Series Specifications and Performance Verification
a. Hook up the test-signal source: Connect, through a 50 Ω precision
coaxial cable, the output of the generator to CH 1. See Figure 2--16.
H If using a time-mark generator, set the output for 10 ms markers.
H If using a sine wave generator, set the output for 1.2 V and 500 kHz.
b. Initialize the oscilloscope: Press the DEFAULT SE TUP button.
c. Modify the initialized front-panel control settings:
H Set the Vertical SCALE to 200 mV (or 500 mV with the optional
Tektronix TG501A Time Mark Generator).
H Set the Horizontal SCALE to 80ns(100 ns for TDS5054BE).
H From the toolbar, click the Vert button; then click the Termination
50 Ω button.
H Press PUSH TO SET 50%.
H Click the Close button.
H Use the Vertical POSITION knob to center the test signal on the
screen.
H Press the Trigger MODE button to toggle it to NORMAL.
2. Confirm that the time base is within limits for accuracies:
a. Measure the test signal:
H If using a time-mark generator, align the trigger T to the center
vertical graticule line by adjusting the Horizontal POSITION. See
Figure 2--17 on page 2--41.
H If using a sine wave generator, align the rising edge of the sine wave
on the center graticule crosshairs by adjusting the Horizontal
POSITION.
H From the toolbar, click the Horiz button, and select the HORIZON-
TAL tab.
H Press the Horizontal DELAY Mode button to toggle it on. See
Figure 2--17 on page 2--41.
H Set the delay time to 10 ms. (Do this by clicking Horiz Delay and
on the keypad press 10, then m followed by ENTER.)
b. Check long-term sample rate and delay time accuracies against limits: