I have a 3 year old Thinkpad w/ built in wireless that has good sensitivity but probably runs 11.b. Works find at home where there are no 2.4GHz phones. When I go to a vacation rental condo or coffee shop, I quite often get very poor performance even when there is a strong enough signal to get 11Mb data rate. Of course these are environments where I have no control over the wireless router or the 2.4GHz phones, etc. The worst performance comes when I try to download e-mail from yahoo into Modzilla Thunderbird. I think this may be due to very high error rate caused by interference from other 2.4GHz equipment but do not know how to find that out from XP Pro networking utilities.
Other users near me in the condo or coffee shop report no problem, great performance. One of these users suggested I get an 11g card. On the surface, the idea that 11Mb is the bottle neck for Internet data seems doubtful. However, the notion that 11g may function in a way making it less suceptable to interference is the question here. What do you think?
If you think 11g would help my situation, do you think that there are any advantages in the more expensive 11g products or is a base card as good as any for my situation?