FCC 15.203 and for other countries
Last Post: December 1, 2005:
In my experience, people tend to cobble together 802.11 systems if they want to, regardless of the regulatory requirements of their country. I don't know of anybody who has been cited for this, so I suspect that the FCC at least isn't overly concerned. I suspect that you're much more likely to be overlooked if you familiarize yourself with power output restrictions and obey them. The whole point of certifying systems is to make sure that you don't output too much power. If you combine an AP and an antenna in an uncertified configuration, BUT you make sure that you're within the relevant power output restrictions for your regulatory domain, I think that it's likely that nobody will ever know that you're technically breaking the rules. If you put together a system that outputs drastically too much power, you'll be more likely to attract attention and get cited.