Published:2009/7/14 4:30:00 Author:May | From:SeekIC
Used as prefilter having controlled group-delay distortion, ahead of receiving modem in data transmission system. Values shown are for 950-1400 Hz answer filter. For 1900-2350 Hz originate filter, change critical values to those given in parentheses. -D. Lancaster, TV Typewriter Cookbook, Howard W. Sams, Indianapolis, IN, 1976, p 180-182.
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