EXFO IQS-1600 High-Speed Power Meter for IQS-500/600 - Manual (Page 37)

Setting Up Your High Speed Power Meter
High Speed Power Meter 29
Setting the Display Resolution
Setting the Display Resolution
Depending on the required resolution and operating power level, 0, 1, 2, 3,
or 4 digits can be displayed after the decimal point. When the auto setting
is selected, the display resolution is determined by the power level being
measured.
Note: The Auto marker in the data display does not refer to the automatic display
resolution but to the measurement range (see Setting the Measurement
Range on page 32).
To select the display resolution of a power measurement
expressed in dB or dBm:
1. Click the Settings function tab, then click the Channels tab.
If necessary, select the channel for which you want to set the display
resolution.