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EMC Engineering: Testing a Bare PCB (printed circuit board) for Radiated Emissions and Analyzing Crystal Oscillators



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Testing a Bare PCB (printed circuit board) for Radiated Emissions

Analyzing Crystal Oscillators

Do not use fundamental oscillator frequencies whose harmonics end up closer to each other than 120 kHz (CISPR 16 quasi-peak measurement bandwidth).


       

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Using coolant spray to troubleshoot which oscillator is contributing most to the harmonic(s) being affected

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Updated: Wednesday, 2007-10-03 1:45 PST