D Measuremet Uncertainty Analysis - Instrument Accuracy Test
168 Keysight E4416A/E4417A Power Meters Service Guide
The relationship between the applied voltage from the Universal Source to the
corresponding power is given from:
1 mW = 0.14493 mV
This is a linear relationship, for example, 0.1 mW is equal to 0.014493 volts. This
relationship is valid between 0 dBm and
−30 dBm.
However, above 0 dBm a look up table is used for voltage to mW conversion. This
is due to the sensors non linear behavior at higher power levels. The voltage
correction at the appropriate points is shown in Table D-2.
Table D-2 Voltage Correction Multiplier
Power (mW) Voltage Correction Multiplier
11
10 1.006577
100 1.075533
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