in conjunction with a system clock 81 is to produce a multi bit binary signal 82 therefrom that is proportional to the rate of the inputed sixth signal 61 the binary signals 82 from the prbc 80 serve to drive two separate memory facilities 83 84 the memories function to store second signal 34 a 34 or second signal 34 b 34 related binary data by way of alternate gate control signals 21 22 producing 34 write 34 else 34 store 34 control signals for the individual memories the memory outputs are utilized in one form to feed a four or else eight bit data bus of usual form which can therefrom serve to interface with a computer system digital display system or other control apparatus while not detailedly shown a skilled artisian would understand that a d c power source for operation of the described functions would be usual practice as would be auxilliary operator controls and adjustments for effective convenience say volume and gain controls tuning adjustments and so on furthermore it is to be understood that the principle of two multiplexed second signal inputs as well as two de multiplexed signal outputs can be extended to any plurality of inputs and outputs when advantage is to be served by such additional circuit complexity the unique waveform comprising the component first signal i e the modulating signal in the event of a high frequency say radio frequency rate first signal is shown in fig2 four particular rates are illustratively shown the highest rate being represented by waveform ba whereas the slowest rate is the waveform bd representation each rate ba through bd is one half the higher rate for example if in waveform aa it is shown the most frequent pulse signal waveform ba serves to produce the.