SIG
L
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SDM3055 Digital Multimeter 83
Example 3: dBm Measurement
dBm is commonly used in audio signal measurement. The following will
introduce you how to measure dBm value.
Operating Steps
：
1. Press on the front panel to select AC Voltage measurement
function and choose a proper voltage range.
2. Connect the red lead to terminal Input-HI and black lead to terminal
Input-LO as Diagram 2-9.
3. Set the dBm parameters.
Press
→【
Statistics
】
to turn on the statistics function and set the
selective value of dBm as a reference value within supposed circuit by
using direction keys: 50
Ω
.
Diagram 3- 6 Select Reference Resistance as Measurement Value
4. Press
【
Done
】
to return to the higher level menu. At this time, the reading
shown on the screen is the Power value of reference resistance.
Diagram 3- 7 dBm Operation Result
