Anritsu MA24 A Series, Operation Manual, Page: 50 / 88

4-10 PN: 10585-00004 Rev. U MA24xxA/B/D, MA2400xA OM
4-5 Measurement Uncertainty Chapter 4 — Performance Verification
An example of measurement uncertainty is detailed for several power
sensors in the table below. Anritsu power sensors with an ML2437A
power meter are used to measure the power of a 16 GHz, 7 dBm signal
from a source with a 1.5:1 SWR.
Table 4-2. Measurement Uncertainty Examples
Sensor Model
Series
Probability
Distribution MA24002A MA2442D MA2472D
Instrumentation
Accuracy
Rectangular 0.50% 0.50% 0.50%
Sensor Linearity Rectangular 1.80% 1.80% 1.80%
Noise, 256
Average
Normal at 2

0.01% 0.01% 0.00%
Zero Set and Drift Rectangular 0.06% 0.04% 0.01%
Mismatch
Uncertainty
Rectangular 3.67% 3.84% 4.49%
Sensor Cal Factor
Uncertainty
Normal at 2

1.60% 0.79% 0.83%
Reference Power
Uncertainty
Rectangular 1.20% 1.20% 1.20%
Reference to
Sensor Mismatch
Uncertainty
Rectangular 0.36% 0.36% 0.44%
Temperature
Linearity, ±20 °C
Rectangular 1.00% 1.00% 1.00%
RSS, Room
Temperature
– 4.59% 4.52% 5.10%
Sum of
Uncertainties,
Room Temperature
– 9.19% 8.55% 9.27%
RSS ±20 °C – 4.70% 4.63% 5.20%
Sum of
Uncertainties
±20 °C
– 10.19% 9.55% 10.27%