GW Instek GDM-8200A User Manual - Manual (Page 44)

GDM-8200A Series User Manual
44
Deactivate dBm
measurement To cancel the dBm measurement,
press the Shift key followed by the
key, or simply activate another
measurement.
Measure dB
Background dB is defined as [dBm−dBmref]. When the dB
measurement is activated, the GDM-8200A series
calculates the dBm using the reading at the first moment
and stores it as dBmref.
Activate dB Press the Shift key followed by the
Hz/P key. The 1st display shows dB,
and the 2nd display shows the
current Voltage reading.
dB result
appears
dB Indicates dB measurement
113.729mV Indicates the present Voltage reading
dBmref Press the 2 ND key to see the dBmref value.
Deactivate dB
measurement To cancel the dBm measurement,
press the Shift key followed by the
Hz/P key, or simply activate another
measurement.