Chapter 3 PERFORMING MEASUREMENTS
3-38
TPA
An explanation of TPA is given below.
TPA calculates the loss based on the level difference between the specified two points.
There is a possibility that variation of calculated loss caused by operators is reduced and
repeatability of calculated loss is changed considerably.
Use TPA when you want to check the loss for each event or the loss in the area where
events are present as shown below.
For the method of displaying the approximate line, refer to page 7-3.
The approximate method can be changed as explained below.
♦ Example: “LSA” → “TPA”
1. Locate the cursor to “APPROX. METHOD” by using the rotary knob or the arrow
key.
1
2
Approximate line for
1
-
2
Refer
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