Procedure - 8.448 Mb/S - HP 37718A Installation And Verification Manual

N OT E
Performance Tests
PDH/DSn Transmitter Output
d/ softkey
TEST ON
e/ softkey
M1M2
f/
AFTER FAIL CONTINUE
g/ RUN
12 The Oscilloscope will automatically display and compare an isolated
positive pulse with the mask limits. A PASS message should appear on
the Oscilloscope
It may be necessary to visibly fit the waveform to the mask by adjusting
the Oscilloscope vertical position and horizontal delay to obtain a PASS
on the Mask.
13 Measure the peak pulse amplitude at the mid pulse-width using the
Oscilloscope and verify that this is between 900 mV and 1.100 Volts.

Procedure - 8.448 Mb/s

Positive Pulse
1 Recall the HP 37718A/19A Default Settings as shown on page 3-4.
2 Set the
TRANSMIT
3 Connect the PDH/DSn 75Ω OUT port to the Oscilloscope CHAN 1,
terminate in 75Ω.
4 Select CHAN 1 on the Oscilloscope and set to 1MΩ input impedance.
softkey
display as shown opposite.
3-21