| Re: Canarsie CBTC (98058) | |||
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Re: Canarsie CBTC |
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Posted by Stephen Bauman on Mon Jun 13 10:59:48 2005, in response to Re: Canarsie CBTC, posted by SelkirkTMO on Mon Jun 13 10:45:30 2005. I was involved for several YEARS in the birth of "digital cable" ... and QAM was what I cut my teeth on.QAM isn't digital; it's an exalted form of amplitude modulation. It's error rate is inversly proportional to the bandwidth. At least the FM error rate is inversly proportional to the carrier frequency. |