Re: What speed is the wireless on my laptop?

[Lukas Beeler <lukas.beeler@xxxxxxxxxxxxxxxx>]

On Fri, Jan 15, 2010 at 20:10, Dan <dan27649@xxxxxxxxx> wrote:
> > On Fri, Jan 15, 2010 at 18:00, Dan <dan27649@xxxxxxxxx> wrote:
> > > I'm using a Lenovo ThinkPad T61, which has an Intel 4965AG adapter.
> > That's a 4965AGN, stripped of 802.11n functionality.
> Kind of figured that, but there's no clear documentation on that. ÂIf you
> search for 4965AG on Intel's website, you get the specs for 4965AGN.

Look at the HW Service Manual:

http://download.lenovo.com/ibmdl/pub/pc/pccbbs/mobiles_pdf/42x3546_03.pdf

It *is* an 4965AGN, but with the .n part disabled.

> > No. But a router that is capable of 802.11a (basically, 5Ghz 802.11g)
> > will perform better, because fewer people use the 5Ghz band.
> O.k., this is where I got messed up. ÂI made the bad presumption that the a,
> b, g, n amendments each represented an upgrade on the data transfer rate.

a: 5Ghz, 54mbit (Not widely used)
b: 2.4 Ghz, 11mbit
g: 2.4 Ghz 54mbit
n: 2.4 Ghz, 5 Ghz, 150 Mbit, 300 Mbit, 450 Mbit, 600 Mbit. And there's
a lot of draft-n equipment out there that won't play nice with other
802.11n devices.

As you can see, 802.11n is a real mess. You really need to be VERY
careful when buying an 802.11n device.