EMC Question of the Week: September 21, 2026
The near-field probe measurement depicted in the photo shows peaks spaced approximately 1.9 MHz apart. Between 30 and 50 MHz, the amplitude of these peaks is approximately 40 dB(μV). When the probe is positioned at any other location, the peaks are much lower. We can conclude that
- this product is likely to fail to meet its radiated emissions requirement
- this product is likely to meet its radiated emissions requirement (30-50 MHz)
- there is a relatively strong 1.9-MHz signal voltage at that location
- there is a relatively strong 1.9-MHz signal current at that location