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Performance Verification
GB1400 Acceptance Test E-5
Confirmation of Frequency Function
q Step 6: In the Generator CLOCK section, the FREQUENCY LED should be on. If it
is not, press the ‘FREQUENCY’ key to select it.
q Step 7: Use the Generator CLOCK up/down keys to change the output frequency.
q Step 8: Check that the frequency displayed by the Analyzer matches the Generator
output to within ± 0.1 MHz. (Note that the resolution of the Analyzer is 0.01 MHz and
that the resolution of the Generator is 0.001 MHz.
q Step 9: At the Generator, use the ‘STEP’ key to select another frequency step size
(note the placement of the underscore on the Generator frequency display), and
repeat steps 7 and 8 at this step size.
q Step 10: Repeat steps 7 through 9 for all step sizes.
Confirmation of Selectable Data Patterns
q Step 11: In the Generator PATTERN section, verify that the PRBS LED light is on.
If not, press the PRBS key to select it.
q Step 12: Press the Generator PATTERN up/down keys to select PRBS pattern PN7.
q Step 13: Verify that the Analyzer displays the same PRBS pattern as the Generator.
q Step 14: At the Analyzer, press the ‘CLEAR’ key in the ERROR HISTORY section.
q Step 15: Verify that the four ERROR HISTORY LEDs are off and stay off.
q Step 16: At the Generator, use the PATTERN up/down keys to select the next PRBS
pattern.
q Step 17: Repeat steps 13 through 16 for each of the five PRBS patterns.
q Step 18: In the Generator OUTPUT section, press the ‘INVERT DATA’ key. The
INVERT DATA LED will light.
q Step 19: Verify that the INVERT DATA LED in the Analyzer INPUT section is also
on.
q Step 20: Repeat steps 12 through 17, noting that INV is displayed after the PRBS
pattern on the Analyzer display.