Setting Averaging


You can choose to have averaging on or off and set the number of averages you want to take. 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 or channel 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 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.
  1. [Average]
  2. Enter the number of averages using the numeric keypad.
  3. [Enter]

2
Select the type of averaging you want to apply.
  1. [Average/Sweep]
  2. [Averaging]
  3. [Off], [Running Average], [Max Hold], [Group Average], or [Group Max Average]



NOTE: These two steps can be performed in any order. However, if you turn averaging on and a large number of averages has previously been set, there may be a delay before you can change number of averages.