2
Performance Tests
36
Keysight N1911A/1912A Service Guide
11
Perform a power meter zero on the DUT. The voltage of the range calibrator is
assumed to be 0 V.
12
Set the DC voltage to 89.6056 mV as measured by the voltmeter.
13
Perform a power meter calibration on the DUT.
14
Measure and record the absolute accuracy of the N1911A/1912A in a table as
shown below.
Effective
power
DC voltage
Voltmeter
range
Power meter
filter /
voltmeter
NRDNS
CH A % error
CH B % error
Specification
-12 dBm
0.00565 V
0.1 V
256
±0.5%
-5 dBm
0.02834 V
0.1 V
64
±0.5%
5 dBm
0.28400 V
1 V
64
±0.5%
8 dBm
0.56700 V
1 V
16
±0.5%
10 dBm
0.90100 V
1 V
16
±0.5%
12 dBm
1.43500 V
10 V
16
±0.5%
14 dBm
2.29000 V
10 V
16
±0.5%
16 dBm
3.66700 V
10 V
16
±0.5%
17 dBm
4.65200 V
10 V
16
±0.5%
18 dBm
5.91500 V
10 V
16
±0.5%
19 dBm
7.53000 V
10 V
16
±0.5%
20 dBm
9.62300 V
10 V
16
±0.5%
