EXFO IQS-1500 Power Meters for IQS-500/600 - Manual (Page 45)

Measuring Power
Power Meters 37
Averaging Measurements
Averaging Measurements
When the averaging function is enabled on the Power Meters, the eight
most recent measurement samples are used to compute an unweighted
average. This average is displayed as the measured value. You will notice
the AVG marker at the right of the value, indicating that averaging is
enabled.
In the case of the IQS-1100 Power Meter, you can benefit from an extended
absolute power measurement range, up to −100 dBm if the following
conditions are met:
³
You must enable the averaging function.
³
You must have a sampling rate of 0.1 or 0.5 samples per second.
³
You must set the display resolution to Auto (seeSetting the Display
Resolution on page 24 for details).
To toggle between averaged and unaveraged power
measurement:
Click the Averaging button to activate or deactivate it.