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Old 02-04-2004 | 05:32 PM
  #3878  
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InitialD
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Originally posted by cyba888
So there is no difference in PPM and PCM except that PCM has failsafe?
PCM is slower than normal FM (or PPM like Futaba calls it) and HRS (also runs in normal FM mode). The reason is because PCM employs some kind of parity checking and it is more secure than HRS and PPM mode.
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