I am currently trying to get a BeagleBoneBlack to comply with Class B Radiated Emissions levels. I am seeing noise spikes at various harmonics which I believe are originating from the LCD PCLK running at approx. 38MHz. These are spikes are at 307, 345, 384, 422, 460, 499, 537MHz, etc. and are at or above the limit for Class B emissions. Has anyone else managed to solve this problem and limit the harmonics propagating through the system? Thanks.
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