OPERATION
65
Measure dB
dB is defined as [dBm−dBmref]. When the dB measurement is
activated, the DMM calculates the dBm using the reading at the
first moment and stores it as dBmref.
1. Select ACV or DCV measurement. See page 32.
2. Press the SHIFT → Hz/P(dB) keys to activate
the dB measurement mode.
The 1st display shows the dB reading, the
second display shows the voltage reading.
REARGPIBCVCCSWEEPFILTRCLSTOCOMP2ND
dBmEXTSHIFTERRLIMITAUTOMATH4W2WDCAC
AVmm
HzWkM
WSFC
mdB
%
AVmm
HzWkM
WSFC
RMTMAXMINRELHOLDSMFAUTO4W2WDCAC
nμF
dB
measurement
Voltage
reading
View the dBm
Reference Value
To view the dBm reference value, press the
2ND key.
The Up and Down arrow keys can also be used
to change the voltage range or the reading.
Press the SHIFT → Hz/P(dB) keys again to exit
the dB measurement, or simply activate another
measurement function.
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