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which wireless broad cast is preferable

hi,

I have a Netgear  dual band WNDR3700  .  it has two wireless networks.    a 2.4GHz  b/g/n     and a 5GHz a/n.      is either a stronger or quicker network, or  is there something else about them I need to learn ?

what is the difference?     my points will be awarded to the simplest most straight forward answer.  for I am simple minded    :)
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Neil Russell
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i read it Neilsr.   seems to be a toss up in topics, but i can weight them.
for instance.   it claims 5 GHz does not penetrate walls as well.       would that  pertain to my home where i only have wall boards, or are they referring to concrete wall like in a  hi rise?

distance  -  they seem to indicate that  a 2.4  is broadcast much further.... but how much... my home is 45  x  45   and my property is about 100 ft either way.     that may be plenty for the 5GHz   what do you think.

another confusing point is the speed.  -  they go to length to point out that  some devices on 2.4    can match speeds of the 5 GHz.

i did read what you posted..... let me know your thoughts.
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Neil,

i really think that is correct about placements  it really makes a difference.
i would like to thank all my friends here for answeing.
But you don't have "only wall boards" unless you don't have any appliances.  Appliances like refrigerators and stoves and even metal sinks disrupt the radio waves.  If your router is one side of your appliances and your computer is on the other side, you will usually have poorer reception than if they are both on the same side.

I have a WNDR3700 myself.  I live in an apartment and there are up to 56 wireless networks on at one time here.  Up to 50 of them will be in the 2.4GHz range and only a few in the 5GHz range.  That means there will be Much more interference in the 2.4GHz band.  I use Nirsoft's Wireless Netview to check the networks in my area.  http://www.nirsoft.net/utils/wireless_network_view.html