EXFO IQS-1500 Power Meters for IQS-500/600 - Manual (Page 32)

Setting Up Your Power Meters
24 IQS-1100/IQS-1500
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.
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.
2. Use the arrow buttons to select the value in the Display Res. list.
If you have previously selected watts as units, the Display Res. list will
be grayed out (as illustrated above).
3. Click Apply to confirm your new setting.
Note: When W or W/W is selected, the display resolution changes to Auto (the
appropriate W unit will be used according to the power of the signal
detected). It is then impossible to access the display resolution list.