RTTY_SPEED_CONVERTER

Published:2009/7/14 22:45:00 Author:Jessie | From:SeekIC

Digital speed converter for amateur RTTY permits transmitting either above or below input speed from key-board or tape Uses FR1502E 40-character 9-bitFIFO storage chip, TR1602A universal asynchronous receiver-transmitter, and six Fairchild 9316 programmable dividers. Values shown give choice of 60 or 100 WPM for receiving and for transmitting, derived by dividing down from same 1-MHz clock. Input and output are TTL-compatible.-A. Sperduti, The 60 WPM Conversion, 73 Magazine, April 1977, p 158-159.



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