Max distance that a wireless care can transfer

  • What is the max distance that a wireless card can transfer in meter?

  • That depends on a great many factors.  What type of wireless? 802.11a?b?g?n?  What kind of antennas are involved?  What kind of legal/illegal amplification are you intending to use?  In general, the longer the range, the slower the transfer.  So technically, you may ultimately be able to initiate a connection over an extremely long distance, but the transfer rate will be so slow as to be totally unusuable.

  • The atheros chipset has a max ack/cts timer setting that will allow about 230km.
    The setting util in pfsense will allow for about 40km max. But that calc is not accurate.

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