2 or 3 antenna in dv2500?

Through HP you can customize a dv2500 with 965AGN wireless. However, on their parts website, the dv2500 is listed as having a dual band antenna. Does this mean it has only 2 antennas instead of 3 (or does it mean it operates in the 2 and 5MHz range)? Is there any advantage in upgrading to N wireless with only 2 antenna?

 

N wireless is not a standard at this time. Dual Band antenna means that it can do the 2.5 and 5.0 GHz at the same time. The N standard I hear is supposed to be backwards compatible to G, it runs at the 2.4 GHz same as 802.11b/g. The only reason to have two antenna's is for diversity. That will give you greater coverage in the area the wireless already covers. Cisco doesn't even manufacture the N draft equipment yet, but when we do I'll have a little more information on it. 965AGN sounds like it has 802.11a/b/g/n draft - the third antenna doesn't specify N connectivity however. If they list it as N capable, then if the N draft doesn't change before standardization, it will be N capable.

Phoenix

 

Actually, 2 antennas are required for MIMO used by n wireless - This is why you'll see 3 antennas on n routers. However, I'm not to clear how the technology works with regards to 2 or 3 antennas (Intel recommends the use of 3 antennas in Centrino Duo notebooks). My concern is purchasing an n-draft adapter if HP notebooks only have one antenna for the 2.4Ghz range and one for the 5Ghz range - this would negate the benefits of using n-draft.

I guess my real questing is, do dvx500 (santa rosa) notebooks actually make use of MIMO technology? or is an n-draft upgrade a waste of money?