2-4
IM AQ7280-01EN
• TPA
The AQ7280 uses the difference between the levels of the two specified points to calculate
the loss. The level of fluctuation and reproducibility in the calculated value may vary greatly. If
events such as reflections and splice losses are present in the section being calculated, the TPA
provides a value that has a smaller degree of error than the LSA.
Approximated line calculation points
1
2
2.1 Setting the Measurement and Analysis Conditions