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High-pass filter facts for kids

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High pass filter
A passive high-pass filter
Active Highpass Filter RC
An active high-pass filter
75 Hz HPF on Smaart
Signal being filtered with 75 Hz cutoff frequency high-pass filter

A high-pass filter is an electronic filter that passes the frequency component of a signal above a certain value (cutoff frequency). The frequency component below that certain value will be suppressed to almost zero.

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High-pass filter Facts for Kids. Kiddle Encyclopedia.