Error Output Signal - HP 37717C Calibration Manual

Performance Tests
PDH Error Output (Options UKK, [USB])
5. Press and set up the display as shown opposite.
RESULTS
6. Press
RUN/STOP
7. Check that the displayed BIT EC result
is 0.
8. Press
TRANSMIT
FUNCTION display as shown below to add
errors to the signal and check that the BIT
-3
ER result is 1 in 10
.

Error Output Signal

9. Adjust the Timebase and Range of the Oscilloscope to display two pulses.
10. Check that the pulse period is approximately 488uS (1 pulse per error - 1000
clock periods).
11. Press
TRANSMIT
to stop the error add. Check that pulses are no longer present on the Oscilloscope.
12. Select PATTERN [2^23-1] on the
Loss LED is lit.
13. Adjust the Timebase and Range of the Oscilloscope to display a single pulse.
14. Check that the pulse period is 7.8uS (continuous pulses).
15. Disconnect all the equipment.
3-72
to start a measurement.
, set up the TEST
and set the TEST FUNCTION ERROR ADD RATE to OFF
RECEIVE
display and check that the Pattern