Upsample Lowpass cuttoff 3.8 of samplerate, length 8 dT

sine - upsample 10 - gain 10 - RaisedCosineFilter 3.8k 0.54 - sink sine samplingTime 0.1m sine 3kHz RaisedCosineFilter normalize LOWPASS_SPECTRUM RaisedCosineFilter normalizeLowpassSpectrumFactor 1   Start