Sensor Accuracy Performance Test; Table 2-1 Voltage Standing Wave Ratio (Vswr) Performance Test - Keysight n1921a Operating And Service Manual

2 Performance Tests and Adjustments
Table 2-1 Voltage Standing Wave Ratio (VSWR) Performance Test
Sensor model
N1921A
N1922A

Sensor Accuracy Performance Test

The purpose of this test is to verify the accuracy of the N1921/2A after a period of
usage to ensure that the N1921/2A is still within its published specifications.
Test equipment
– Signal generator (E8257D)
– Power meter (N1912A)
– Wideband power sensor (N1921/2A)
– Power sensors (N8481A/N8487A)
– Cable adapter (N1911A-200)
– Power splitter (11667A/11667C)
– KMIC amplifier (KMA 265400B02)
Test proced ure for the N1921/2A (50 MHz to 18 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
26
Frequency band
50 MHz to 10 GHz
10 GHz to 18 GHz
50 MHz to 10 GHz
10 GHz to 18 GHz
18 GHz to 26.5 GHz
26.5 GHz to 40 GHz
an hour.
incident sensor (N1921/2A) to the N1912A channel B.
Keysight N1921A and N1922A Operating and Service Guide
Maximum SWR
1.2
1.26
1.2
1.26
1.3
1.5
Figure 2-1.