Technical data

128 Chapter 4
Two Port Insertion Loss
Measuring Two Port Insertion Loss
Two Port Insertion Loss
want to take if Averaging is On. Averaging only applies to the data, not to the trace.
You can select from the following types of averaging:
• Off: Disables averaging.
• Running: Computes the new result as the weighted sum of the last result and the
new measurement. The last result is weighted by (n – 1)/n. The new result is
weighted by 1/n. Each new measurement produces a new result.
• Max Hold: Is not an average, but on a point by point basis, displays the
maximum amplitude for the given frequency since Max Hold was turned on. It is
updated when a new maximum occurs.
• Group Average: Makes the requested number of measurements, averages the
measurement data, and displays the average as a single result trace.
Measurement time will vary based on the requested number of averages, and can
take several minutes for very large number of averages.
• Group Max Average: Makes the requested number of measurements before
returning a single trace result. This trace is the maximum value seen at each
trace point over the requested number of averages (measurements).
To Set Averaging:
Step Notes
1 Set the number of averages.
a. [Average]
b. Enter the number of averages
using the numeric keypad.
c. [Enter]
2 Select the type of averaging you
want to apply.
a. [Average/Sweep]
b. [Averaging]
c. [Off], [Running Average],
[Max Hold], [Group
Average], or [Group Max
Average]