System-Level Rise And Fall Time Performance Test - Keysight n1921a Operating And Service Manual

2 Performance Tests and Adjustments

System-Level Rise and Fall Time Performance Test

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 N1911/2A using an actual RF pulse.
Test equipment
– Signal generator (N5182A)
– Power meter (N1911/2A)
– Diode detector
– Oscilloscope with bandwidth >1 GHz
– Trigger cable (U2032A)
– Wideband power sensor (N1921/2A)
System specification
– Rise/fall time: ≤13 ns ±% error
– Overshoot: ≤5%
Figure 2-5
32
Measured rise time percentage error versus signal under test
rise time
Keysight N1921A and N1922A Operating and Service Guide