BANDPASS_FOB_85O_Hz_RTTY_SHIFT

Published:2009/7/15 1:55:00 Author:Jessie | From:SeekIC

Three-stage active Butterworth input filter passes 2125- and 2975-Hz tones plus modulation side-bands and allowance for drift in RTTY receiver. Inset shows how 741 opamps are biased when used with single power supply. Article gives step-by-step design and alignment procedures.-P. A. Stark, Design an Active RITY Filter, 73 Magazine, Sept. 1977, p 38.-43.



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