Keysight n1921a Operating And Service Manual page 33

Test procedure
1 Turn on the N5182A, oscilloscope, and N1911/2A.
2 Allow the system to warm up for approximately an hour before starting the
3 Generate an RF pulse signal (with the following recommended signal profile)
– Frequency: 50 MHz
– Power level: 10 dBm
– Pulse period: 10 μs
– Duty cycle: 50%
4 Connect the N1921/2A to the N5182A and N1911/2A as shown in
Figure 2-6
5 Generate the same pulse signal as previous.
6 Zero the DUT on the N1911/2A.
7 Set the channel frequency of the N1911/2A to 1 GHz and the trigger mode to
8 Set the N1911/2A video bandwidth to LOW and the video average to 64.
Keysight N1921A and N1922A Operating and Service Guide
measurement.
from the N5182A.
The pulse signal is characterized using a diode detector which feeds to the
oscilloscope. This is to verify that the rise/fall time of the RF pulse measured by
the oscilloscope is <10 ns and its overshoot is <0.5%.
System-level rise and fall time performance test setup
N5182A
Continuous Trigger Mode.
Performance Tests and Adjustments
DUT
Power meter
2
Figure 2-6.
33