SIGLENT TECHNOLOGIES SDM3055 Series User Manual

SDM3055 Series Digital Multimeter User Manual
90 int.siglent.com
Example 4: dB Measurement
As a common measuring unit, dB has been widely used in electrical engineering, radio science,
mechanics, shock and vibration, mechanical power and acoustics areas. The following will introduce
you how to measure dB between two circuits.
Operating Steps:
Method 1:
Measure dBm1 and dBm2 existing in two circuits separately according to Example 3, and then dB
could be got:
dB = dBm1-dBm2
Method 2:
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 up dBm2 according to Example 3.
4. Press → [dB/dBm] to turn on the dB function and Set parameters of dB operation (dBm1).
Diagram 3-8 Set the Parameters of dB
5. Press [Done] to return to the higher-level menu. At this time, the reading shown on the screen is
the power difference between two circuits.

SIGLENT TECHNOLOGIES SDM3055 Series Specifications

General

Brand	SIGLENT TECHNOLOGIES
Model	SDM3055 Series
Category	Multimeter
Language	English