>From: Alan Cox [mailto:[EMAIL PROTECTED] > >Ar Llu, 2006-06-05 am 13:31 -0700, ysgrifennodd Perez-Gonzalez, Inaky: >> For what I know (and I could be wrong) max is around -40dBm/MHz >> in the US. I am no expert in the nitty-gritty radio details, but >> I've been told that is 3000 times less emissions than a common >> cellphone, around .1 uW? [this is where my knowledge about radio >> *really* fades]. > >Life is never that simple. The total emissions of UWB are pretty low but >their spread across the wide frequency range makes them incredibly low >on any frequency - so very unlikely to interfere. > >The total emissions across the set of frequencies as a sum (with >emphasis on some frequency ranges such as 2.4-2.5GHz) apparently matters >much more than the emissions at one frequency for things like human >exposure.
Right -- I asked our local radio wizard (so I could get more details) and taking into account that each band is 1584 MHz wide at a max of -41.3 dBm/Mhz, it yields something like 117 uW per band. He also added that once you consider all the fine points it goes down to 100uW per band (-10dBm). To answer Pavel's question on hardware power consumption, I don't really know -- too early to tell; however, whoever architected the technology was keeping in mind a target market similar to bluetooth's, really small devices and embedded, home entertainment, cell phones, printers, cameras and the like; it'll be pretty low. -- Inaky _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
