EXFO IQS-1700 High Performance Power Meter for IQS-500/600 - Manual (Page 68)

Performing Acquisitions
60 IQS-1700
Selecting the Sampling Type
The acquisition rate applies to all channels when using a multichannel
power meter.
You can also change the continuous sampling rate in the Instrument
function tab in the same manner.
If you select Single, select the rate to use with the arrow buttons.
This rate is a divider of the maximum rate (5208 Hz). For example,
5208 Hz has a divider of 1, 2604 has a divider of 2 and so forth. To add
or remove dividers from the list of available values, see Editing the
Frequency Divider List on page 61. The acquisition rate applies to all
channels when using a multichannel power meter.
If you select User Defined, select the rate by entering a value in the 1/
list, then select a time unit using the arrow buttons. Remember to click
to confirm your settings.
Note: Use a lower sampling rate with averaging set to active (see Averaging
Measurements on page 51) for greater repeatability when measuring very
low power.