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dual band wifi card vs single band wifi card

Discussion in 'Networking' started by keega, Feb 13, 2013.

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  1. keega

    keega Thread Starter

    Joined:
    Jun 16, 2005
    Messages:
    61
    Hi all,

    I looked online and I'm still a bit confused whether I should get dual or single band wifi for a laptop that I would like to purchase. Can someone explain to offer a suggestion as to which one is best?

    Thank you in advance.
     
  2. etaf

    etaf Wayne Moderator

    Joined:
    Oct 2, 2003
    Messages:
    63,307
    do you mean a router
    or as part of the laptop spec ?

    what router do you have and does it work in dual band simultaneously

    the advantage of the 5ghz signal is if you are in a crowded 2.4ghz environment then 5ghz helps avoid interference - also the coverage is wider - although the 5ghz router i have linksys - does not seem to be

    if your current router only works in 2.4ghz , then no advantage in the short term

    some routers are advertised as dual band - but you have to choose between 2.4 or 5 ghz and so ALL devices will need to support 5ghz
     
  3. charan5b3

    charan5b3

    Joined:
    Feb 12, 2013
    Messages:
    19
    mostly current router antenna's are single band that operate in 2.4 ghz frequency(which is unlicensed frequency) in which there are only 3 free(non overlapping ) channels 1,6,11 (u.s).that mean possible causes for interference near by home routers and home appliances. it transmit low speed and long distance.

    i am not saying about 3.6ghz frequency

    the other is 5.0 frequency ,which is licensed ,which can transfer high rates but short distance , and it is transparent waves can pass through wall ,

    you can't access both bands at a time ,you can use any band at once.

    i suggest dual band.
     
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