Technical data

Performance Tests 2
N1911A/1912A P-Series Power Meters Service Guide 35
Test Method
1 Capture a train of 10 pulses with very fast rise/fall times.
2 Combine the sample data to create an equivalent pulse with 10 unit of
the sample resolution of the DUT.
3 Analyze the equivalent pulse to determine the 10 % and 90 % voltage
levels of the risign/falling edges
4 Analyze the equivalent pulse to determine when the 10 % and 90 %
crossover points occur for both edges.
5 Using the times obtained for the 10 % & 90 % crossovers, the N7832A
software will calculate the rise/fall time performance of the DUT.
NOTE
For rear panel options, the connections will differ from the illustration shown here. Refer to
the connector identification markings on the rear panel for further details
NOTE
• Only 1 cable is required if the DUT is an N1911A.
• This test cannot be performed manually, due to the complexity of the pulse analysis
algorithm.
• No adjustment is available for this test if it fails (see Chapter 5, “Troubleshooting
Guide”).