PON-3 / Operation
5.5.5 dBm/dB Key for Unit Switching
When the instrument is in the normal test mode, pressing dBm/dB can switch the units between dBm and
dB. The dBm unit is the actual absolute power and dB unit is a power value relative to reference value. Refer
to next section about “Reference value setup”.
When the instrument is in the Pass/Fail test mode, pressing dBm/dB key will automatically exit P/F test mode
and switch to normal test mode. The units will default to dB.
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