SIGLENT
SDM3045X Digital Multimeter 85
Method 3:
1. Access the first circuit. Measure dBm2 according to Example 3.
2. Press →【dB/dBm】 to turn on the dB function and select
【Measure Ref Value】 to set the current dBm measurement value as
referred value.
3. Access the first circuit. At this time, the reading shown on the screen is the
power difference between two circuits.