Why is binary polar signalling not feasible for a data rate of 2.0Mbps within a bandwidth not exceeding 1MHz?

Is it due to the fact that binary signalling can only transfer 1 bit of data per symbol thus, a 1MHz bandwidth would not be large enough for the given data rate?

Then a 4-PAM signal would carry 2 bits of information per symbol which would be more appropriate?

  • $\begingroup$ I believe you got that right, so can you narrow down the question to exactly where your doubt comes from? $\endgroup$ – Marcus Müller May 5 at 11:17
  • $\begingroup$ And keep in mind that it is theoretically possible to achieve that rate, if you use sinc pulses. $\endgroup$ – MBaz May 5 at 14:48

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