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Thread: FM Vs PCM modulation
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Old 11-20-2003 | 01:35 PM
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Gary.j.porter
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From: READING, MA,
Default RE: FM Vs PCM modulation
No actually, don't confuse him

NO SUCH thing as 2048!! ..... YET!

PPM is Pulse-Position-Modulation, basically a FM radio. PPM is what the name is, Quasi-Digital. The signal is either high or low, on or off and sends data within that.


PCM is a completely different modulation and is a binary FULLY digital signal as described earlier.
FM or PPM still has amplitude and modulation and although it pulses, its not true digital with NO REDUNDANCY
AM is, well AM and SUX[8D]

Follow these links, If you thing I am full of bull:


http://www.futaba-rc.com/faq/faq-pcm1024.html A good explanation of PCM

http://www.mh.ttu.ee/risto/rc/electr...dio/signal.htm Very in depth comparison, theory and difference
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