The Model 102T Telegraphy Demodulator is capable of digitizing real-valued analog inputs at a rate of 16 kHz.. The filter bank card used in the Model 102T Telegraphy Demodulator simultaneously demodulates 24 voice grade channels, each containing 24 R.35 FSK canals. Thus 24 * 24 * 2 = 1152 filters needed to isolate the mark and space energy of all FSK canals. When demodulating R.35 signals, each filter produces outputs at a rate of 320 per second. The input sampled waveforms are tuned and filtered by a preceding tuner to spectrally align the filter banks bins with the mark and space frequencies of the R.35 signal.