Setting Averaging

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You can choose to have averaging On or Off, and to set the number of averages you want to take. When initialized, the Agilent E7495A/B defaults to running average:

• A running average 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.

The reported averages for the following measurements will only be updated when idle slots are identified within the update interval. If no idle slots are identified, the average values reported will be from the previous update interval:

• Idle Power
• On/Off Ratio
• Noise Floor

The reported averages for the following measurements will only be updated when non-idle slots are identified within the update interval. If no non-idle slots are identified, the average values reported will be from the previous update interval:

• Non-idle Power

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NOTE:

The Idle Slots metric itself is always averaged even if averaging is switched Off. It represents the average of all the captures since the measurement was started. You can reset the Idle Slots metric by changing a parameter, or by using the Restart key.

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NOTE:

When you switch averaging On, it is averaged in the same way as the other metrics.

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To set averaging:

	Step	Notes
1	Set the number of averages. [Average] Enter the number of averages using the numeric keypad. [Enter]
2	Set averaging On or Off. [Average/Sweep] [Averaging] [Off] or [On]

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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.

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