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#### Question 6.1 Question 6.2 Question 6.3 |

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## Performance of M-ary ASK

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#### There is no opportunity to exploit orthogonality with M-ary ASK symbol sets and so there is an immediate penalty in BER performance as we move up from the binary system. The relatively poor BER results for M-ary ASK, coupled with its sensitivity to any gain variations in the channel and the need for reasonable linearity in the transceiver processing, means that there are very few practical examples of ASK other than in its binary form. |