I've helped with the regulatory rules for CZ, and I thought we should use lower power limits for 5.25 & 5.47 GHz, because we cannot assure TPC is enabled or not. Apparently it should be fine to use this higher limit ( 200 mW / 1000 mW ). Carlos PS: This was discussed here in linux-wireless in december 2008, and Michael Green wrote: > The tx power levels are worth discussing more. Even though the European > countries are harmonized on EN301 893 which enforces 200mW EIRP in 5.15-5.35 and > 1W EIRP in 5.470-5.725, vendors must not blindly set new hardware to transmit at > these upper limits. > > Each board design must undergo conformance testing to the applicable RF > conformance spec (in this case 301 893) at which time the vendor will discover > that various other tests in the conformance spec will limit the achievable > compliant tx power for that design and it's associated antennas (i.e. power > spectral density, spurious emissions, etc. So using 200mW and 1W EIRP in code > may be fine as an upper limit, fail safe, users of the code / hardware > developers must be educated to ensure awareness that there is no universal > "compliant tx power" that you can assign for a country that applies to all the > different hardware out there. > > Michael Green > Atheros Communications, Inc. > mgreen@xxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
