802.11 b/g cards: do they also see "a"?


If using an 802.11 b/g PC card, does the card also see any "a" signals that are in its range and can it connect to them?

I understand that the b/g card specifications are backwards compatible with the slower "a".

What are the advantages of using an 802.11 a/b/g combo card compared to an 802.11 b/g card?

Thanks for your advice,

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You may come across a location with one of the first generation A routers, but it is highly unlikely.  I certainly would not spend extra $$$ to be A compatible.  Actually, with N type cards hitting the market I suggest you do some research before you buy.  Are you considering this for just your laptop at WiFi hot spots, or are you planning to buy a router for home as well?  If you need a router, I suggest you look at the new N type cards and routers from Linksys.  For just the WiFi spots a B/G card would do just fine.


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