South Korea Revises Electromagnetic Compatibility Technology Standard
Pre-notification for the revision of EMC technical standard to collect public opinions until June 3rd for wireless power transmission devices and microwaves.
This will be effective 3 months later after publishing it.
1. Add radiated emission limit to wireless power transmission device for the home over 10 W power as below:
| Frequency(MHz) | QP limit(dB(uA/m)) at 3 m distance |
| 0.009 ~ 0.070 | 69 |
| 0.070 ~ 0.1485 | 69 ~ 39 |
| 0.1485 ~ 4.0 | 39 ~ 3 |
| 4.0 ~ 30 | 3 |
| Note : The limit below 10 W could be applied to this device over 10 W. | |
2. Revise the radiation disturbance weighted limit over 1 GHz for microwave
| Frequency range GHz | Limits for a measuring distance of 3 m Peak dB(uV/m) |
| 1 - 2.4 | 60 |
| 2.5 – 5.725 | 60 |
| 5.875 - 18 | 60 |
Weighted measurements with a resolution bandwidth of 1MHz and video bandwidth of 10 Hz. NOTE To check the limits of this table, measurements need only be performed around two center frequencies: the highest emission in the 1005 MHz – 2395 MHz range the highest peak emission in the 2505 MHz to 17995 MHz range (outside the band 5720 MHz – 5880 MHz). At these two centre frequencies, measurements are performed with a span of 10 MHz on the spectrum analyser. | |
Measure with a span of 10MHz on the spectrum analyzer in below several frequency ranges instead of 2 frequency ranges. The frequency range is as follows:
-1005 ~ 2395 MHz, 2505 ~ 6125MHz (outside 5720 ~ 5880MHz), 6125 ~ 8575 MHz, 8575 ~ 11025MHz, 11025 ~ 13475MHz, 13475 ~ 15925MHz, 15925 ~ 17995MHz
