AFSK_TONES

Published:2009/7/15 2:11:00 Author:Jessie | From:SeekIC

Generates tones needed for either 170- or 850-Hz frequency shift in automatic frequency-shift keying of B'FEY equipment. Independent adjustments are provided for each tone, Sine-wave output has constant amplitude, with excellent tone frequency stability. Circuit permits plug-in operation in any RTTY loop, independent of loop polarity or grounding. Article covers construction and adjustment.-J. C. Roos, Universal AFSK Generator, 73 Magazine, July 1974, p 37-40, 42, and 44-46.



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