INPUT DEVICE FOR RADIO RECEIVER

摘要

The filter, including N channels each of which contains input and output switches and band-pass filter, for better selectivity the band-pass filter of each channel is in the form of three sereis-connected band-pass elements, the inputs of the first and the outputs of the third band-pass elements are combined acting as the input and output rails. The output of the first and the input of the third band-pass elements in each channel via the corresp. switches are connected to the common rail.