A reader recently wrote and asked if changing his wireless adapter could improve the range of his 802.11b/g wireless network. Whenever I've looked at wireless adapters that claim to improve performance in the past, I've always come away with mixed results. But part of the reason for my ambivalence was the limitation of the five-location walk-around test technique I used.
But now that I use the Azimuth ACE 400NB Channel Emulator, Director and Radio Proof enclosures for wireless LAN testing, I decided to use them to take an unprecedented look at performance differences among wireless adapters. The focus of the exercise was to see if changing a wireless adapter could make a noticeable performance difference when used with a standard 802.11g wireless router.