Band-pass Filter Taps

Generates taps for a band-pass filter and stores it in variable called whatever the ID is set to. It's essentially a convenience wrapper for calling firdes.band_pass() or firdes.complex_band_pass(). None of the parameters are realtime changeable because the taps are created once at the beginning of the flowgraph.

Parameters

ID

Similar to the Variable block, the ID will hold the values generated.

Tap Type

Whether the taps are real or complex.

Gain

Scaling factor applied to output.

Sample Rate

Input sample rate.

Low Cutoff Freq

Lower cutoff frequency in Hz

High Cutoff Freq

Upper cutoff frequency in Hz

Transition Width

Transition width between stop-band and pass-band in Hz

Window

Type of window to use

Beta

The beta paramater only applies to the Kaiser window.

Example Flowgraph

This flowgraph can be found at https://github.com/gnuradio/gnuradio/blob/master/gr-filter/examples/filter_taps.grc.