// RF_KNOWLEDGE_BASE — REGULATIONS & CERTIFICATION
← Back to RF FAQ What is the most common cause of failure in 2.4GHz device KC certification, and how is it prevented?
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The most frequent cause is exceeding the limit for radiated spurious emissions. Prevent this by optimizing antenna impedance matching, employing Low-Pass Filters (LPF), isolating switching rails, and shielding critical RF blocks.
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