Here are the pertinent bits as far as I can tell:

There is a little dBm <-> Watt conversion utility here: http://www.kirkeby.it/html/playground/swr.html

(NOTE: some people view the FCC rules as only allowing an omnidirectional antenna a total of 30dBM EIRP, but the general consensus is that they are really directional (they do limit the vertical beamwidth) and follow the same rules as every other type of antenna)

-MichaelCodanti


SeattleWireless has some information on this too: http://www.seattlewireless.net/index.cgi/FccRegulations

Its pretty dense though, so whoever's got the ability to read that or already knows it please summarize!

-ColinDabritz


Here's a good summary from TimPozar at BaWug

and another more recent paper by Tim here (PDF or Postscript):


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FccRegulations (last edited 2007-11-23 18:01:28 by localhost)