Anyone explain some networking terms?

[Sime]

Basically looking through my wireless adapters properties i noticed afew things which could be enabled or disabled. What do they do and should the be on or off?

IEEE802.11h

and

SmartScan

 

[tolien]

http://en.wikipedia.org/wiki/IEEE_802.11h

SmartScan sounds proprietary.

 

[moogie]

SmartScan, a one-button scanning feature that scans the airwaves and saves the three clearest results as preset channels.