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3628 A filter is a circuit that separates some frequencies from others within mixed-frequency signals. It is used for preprocessing in measurement.
NF has various kinds of active filters. The abundance of filters extends the range of choices.

Variable Cut-off Frequency Filter

CD Player Evaluating Filter

Multichannel Filter (built-in module)

[ Abbreviations ]
LP : Low-pass, HP: High-pass, BP: Band-pass,
BE : Band-elimination, BW : Bandwidth

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