Scalar Error

This section computes the error analysis for Scalar Analyzer measurements of Transmission and Reflection.

Transmission Error

This screen will give the Scalar Transmission Upper and Lower Gain values in dB for the inputs of Load and Source Match in dB, DUT Transmission Forward and Reverse in dB and finally the DUT Input and Output Return Loss in dB. The calculation then gives the uncertainty range of the measurement value. In this case the 10dB Forward Transmission can be actually in the range of 8.093 to 11.66dB in value. Press Calculate to compute and display. Clear to reset and reenter value to retry and Close to Quit.

Figure 145 Scalar Analyzer Transmission Error

Reflection Error

This screen will give the Scalar Reflection Upper and Lower Return Loss values in dB for the inputs of Source Match in dB, DUT Input Return Loss in dB. The calculation then gives the uncertainty range of the measurement value. In this case the 15dB Return Loss of Device can be actually in the range of 13.9 to 16.26 dB in value. Press Calculate to compute and display. Clear to reset and reenter value to retry and Close to Quit.

Figure 146 Scalar Analyzer Return Loss Error