Keysight n1921a Operating And Service Manual page 29

Extended test procedure for the N1922A (26.5 GHz to 40 GHz)
1 Turn on the E8257D and N1912A. Allow them to warm up for approximately
2 Connect the standard sensor (N8481A/7A) to the N1912A channel A and the
3 The test equipment setup is as shown in
Figure 2-3
4 Zero and calibrate the standard and incident sensors on channels A and B
5 Set the frequency of the signal source to 26.5 GHz and power level to 10 dBm.
6 Set the frequency of the N1912A channels A and B to the same frequency as
7 Measure the standard power (P
8 Repeat steps 5 to 7 for other frequencies with the same power level.
9 Turn off the RF output of the signal source.
Keysight N1921A and N1922A Operating and Service Guide
an hour.
incident sensor (N1922A) to the N1912A channel B.
Sensor accuracy performance test setup for the N1922A
(26.5 GHz to 40 GHz)
Power meter
B
A
respectively.
Turn on the RF output.
the signal source.
channel B. Compute and record the power ratio (P
the current frequency and power level, based on the following equation:
Performance Tests and Adjustments
Signal source
Incident sensor
) of channel A and incident power (P
STD
P (dB) = P
ratio STD
Figure 2-3.
KMIC amplifier
Power splitter
Standard sensor
) of these channels for
ratio
– P
INC1
2
) of
INC1
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