Agilent Technologies Infinium DCA 86100A, Service Manual

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4-27
Performance Verification
Trigger Level Accuracy Check
to the Channel 2 input of the 83483A.
4 Set the 83712B to the following.
a 10 MHz
b +10 dBm
5 Set the DCA to the following.
a Turn on only channel 2 and set to 100 mV/div with 200 mV offset.
b Set the timebase to 10 ns/div with 24 ns Delay.
c Set the trigger source to the front panel.
6 Set the input to be 1Vp-p.
a Turn on the Vmax function.
b Adjust the power level of the 83712B until Vmax = 500 mV ± 2 mV.
c Close the Measurement box.
d Set the channel 2 offset to 0.
7 Set the DCA to negative slope trigger.
8 Turn on the vertical marker. Adjust the marker until the y value is 0 mV ± 2 mV of the first falling
edge.
9 Repeat the following for each data point.
a Adjust the trigger level to the data point.
b Set the channel 2 offset to the same as the trigger level.
c Record the marker Y value.
10 Set the DCA to positive slope trigger.
11 Turn on the vertical marker. Adjust the marker until the Y value is 0 mV ± 2 mV of the first rising
edge.
12 Repeat Step 9 .
13 Compare each data point to the specs for both the positive and negative slope triggers.
N O T E The specifications for each measured parameter is set up with the expectation that the reference
time position is at a zero crossing when the trigger level is set to 0.
Software
1 Place the 83483A module in the left slot of the DUT. After letting it warm up for 1 hour perform
module calibration.
2 Connect the output of the 83712B to the input of the 11667B power splitter.
3 Connect one output of the 11667B to the front panel trigger input of the DUT and the other output
to the Channel 2 input of the 83483A.
4 Set the 83712B to the following.
a 10 MHz
b +10 dBm
5 Set the DUT to the following.