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Old 12-06-2003 | 11:02 AM
  #37  
w.pasman
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From: ----, NETHERLANDS
Default RE: FM Vs PCM modulation

captain18

I disagree here. Ok so you say we need a few "waves" to detect a signal. How many are we talking here?? 10?? 20?? Lets say 20. So now in a 72MHz radio we are getting 72 million waves per second. Thats 72000 in one millisecond, our worst case scenario. So to compare it to PCM it would be like having a 3600 bit PCM receiver. Seems a lot more acurate than 1024.
72000 is just above 16 bits., so your 3600 bits is way off. But indeed you have some 6 bits more, about 70 cycles per 'bit'. I have no idea how many are needed to switch between on and off, I just quoted what I heard.