Date: Sun, 06 Mar 2011 10:11:22 -0500 From: Etienne Robillard <erob@gthcfoundation.org> To: freebsd-current@freebsd.org Subject: Re: can somebody explains OFDM in FreeBSD? Message-ID: <4D73A41A.4050109@gthcfoundation.org> In-Reply-To: <AANLkTinAowO5pOvzA0XOy0RX7_jkZLK6ivfF3wXNLjh=@mail.gmail.com> References: <4D7398C6.8030800@gthcfoundation.org> <201103061533.32138.hselasky@c2i.net> <4D73A085.4030009@gthcfoundation.org> <AANLkTinAowO5pOvzA0XOy0RX7_jkZLK6ivfF3wXNLjh=@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 06/03/11 10:01 AM, Adrian Chadd wrote: > OpenBSD has driver support for OFDM chips. Anything that speaks 11a, 11g or > 11n == OFDM. > > You'd have to speak to an RF related person about your definition of > harmful. I mean, think about it - 802.11 devices are supposed to give off > EMR that a receiver can decode. So your question about whether OFDM being > harmful requires more context, as unlike wired solutions (say wired > ethernet) which may give off EMR which could then be snooped, 802.11 is > supposed to be received through EMF. :) > > Also, that paper you referenced talks about ERLANG, it doesn't mention OFDM > anywhere. > > HTH, > > > Adrian > > Orthogonal Frequency Division Multiplexing: https://gthc.org/investigations/OFDM/72_armstrong_ofdm.pdf @Diane: I'm worried from a amateur computer scientist point-of-view about the harmfulness of EMF fields; in particular the ELF/VLF frequencies as defined in OFDM, for operating WLAN devices as 'ethernet-class subcarriers'.. Kind regards, -- Etienne Robillard Company: Green Tea Hackers Club Occupation: Software Developer (and CEO) E-mail: erob@gthcfoundation.org Work phone: 450-936-2123 Website (Company): https://gthc.org/ Website (Blog): https://gthc.org/blog/ PGP public key fingerprint: F2A9 32EA 8E7C 460F 1728 A1A7 649C 7F17 A086 DDEC During times of universal deceit, telling the truth becomes a revolutionary act. -- George Orwell If a free society cannot help the many who are poor, it cannot save the few who are rich. -- John F. Kennedy
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?4D73A41A.4050109>