Ramsey Electronics - AF1

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Contents

E ZCW AUDIO FILTER Ramsey Electronics Model No AF1 Here s a quick and easy way to eliminate interfering CW signals This filter uses a digital bandpass filter to knock out those unwanted signals The adjustable center frequency and switchable bandwidth add some versatility to this hard working kit Utilizes state of the art switched capacitor bandpass filter IC s Four selectable bandwidths 750 Hz 500 Hz 250 Hz and 100 Hz all with digital accuracy Adjustable filter center frequency for convenient listening Overload protected input accepts headphone or speaker level audio Smart power input allows for AC or DC operation Audio bypass when unit is switched off no need to disconnect unit when not in use Speaker ...