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Comparing wireless a,b,g,N: is there a noticeable difference in the coverage area provided by each of the different standards? Do any of them do a better job penetrating different kinds of walls (namely concrete block)?

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up vote 4 down vote accepted

Wikipedia has a table of the various protocols and their approximate ranges.

  • A - indoor 35m (outdoor 120m)
  • B - indoor 38m (outdoor 140m)
  • G - indoor 38m (outdoor 140m)
  • N - indoor ~70m (outdoor ~250m)

There is very little difference between A, B and G and it is likely that you will find transmitter/receiver quality will play a far bigger role in the range you can actually achieve.

N however, specifically added features that increased the potential range - see this article

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