Hi all

I want to simulate the threshold effect in FM modulation\ demodulation, in theory ,when the carrier to noise ratio (the modulated signal SNR)fall below a certain value ,then the signal to noise ratio(of the demodulated signal will fall dramatically and the signal will not demodulated , click sounds will be heard in the output of demodulator. I have tried first "slope detector" as a demodulator, but the threshold effect didn't appear at all when i decrease...