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

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

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