Rise And Fall Time Verification; Figure 1-4 Measured Rise Time Percentage Error Versus Signal-Under-Test Rise Time - Keysight 8990B Service Manual

Rise and fall time verification

The rise and fall time performance of the instrument path must be quantified
accurately. This test however, is more of a system-level verification, validating the
rise and fall time with the N1923/4A using an actual RF pulse.
Required test equipment:
– 1 unit of E8257D signal generator
– 1 unit of 33334EZ diode detector
– 1 unit of oscilloscope with bandwidth >500 MHz
– 1 unit of U2032A trigger cable
– 1 unit of N1923/4A wideband power sensor (DUT)
System specifications:
– Rise/fall time: ≤5.5 ns ±% error (Refer to
– Overshoot: 0.5%
Figure 1-4
Keysight 8990B Service Guide
Performance Verification and Adjustments
Measured rise time percentage error versus signal-under-test
rise time
Figure 1-4)
1
31