AFSK WITH PLL


Posted on Feb 7, 2014

Complete terminal unit and AFSK tone generator for VHF bands synthesizes tones digitally for 170-Hz narrow shift and 850-Hz standard shift found in VHF amateur RTTY bands. Additional feature is PLL circuit that follows drifting signal and copies signals from which mark or space information is missing. Precision AFSK generator consists of 5.95-MHz crystal osc..


AFSK WITH PLL
Click here to download the full size of the above Circuit.




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