Quote:
Originally Posted by chambohambo
Is it correct that 64QAM is more prone to interference than 16QAM?
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Yes, in the sense that if you try to cram more information into the same space, it takes less for that information to get corrupted. It's not quite right to say that it's more prone to interference, rather it's better to say it's more sensitive to interference.
However, the extra bandwidth you get from it makes it worthwhile if the network is capable of it. The systems Virgin use mean that if interference rises, it'll drop from QAM64 to QAM16 and even QPSK, reducing overall bandwidth but increasing stability until the issue is fixed.