EXFO IQS-1600 High-Speed Power Meter for IQS-500/600 - Manual (Page 60)

Recording Power Signal Variations
52 IQS-1600
2. Select the channel for which you want to see the power variation data
on-screen by clicking the corresponding buttons in the Min./Max. tab.
In the case of dual-channel power meters, you can select up to three
channels (the two normal channels, plus the virtual channel) and in
the case of the four-channel power meter, you can select up to six
channels, including the virtual channels.
Note: For four-channel power meters, since the display allows only four channels
to be viewed at once, you will have to modify your display, either during or
after your acquisition in order to view the remaining two channels.
3. If you want to specify the duration of power measurements, click the
Use Timer button, then enter a span using the arrow buttons on each
side of the list. If you are using the numeric box to enter a time value,
you must enter it in seconds (for example, 120 seconds for 2 minutes).
4. Click Start to start power measurements.
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