Date: Tue, 8 Oct 2013 11:53:34 -0700 From: Adrian Chadd <adrian@freebsd.org> To: "Julian H. Stacey" <jhs@berklix.com> Cc: Alfred Perlstein <bright@mu.org>, freebsd-current <freebsd-current@freebsd.org> Subject: Re: urtwn driver for Edimax EW-7811U WLAN nano USB Adapter Message-ID: <CAJ-Vmo=Jjwn%2B=PqYdWEE44BGeczQ%2B7qnRiSnCiX5YJGGmuPRUw@mail.gmail.com> In-Reply-To: <201310081849.r98InKOn057406@fire.js.berklix.net> References: <201310081849.r98InKOn057406@fire.js.berklix.net>
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Hi, Note the noise floor differences.. wonder why that is. Rui ported the uwrtn stuff, right? He may be able to help. The driver is recent and its likely there are bugs to shake out. -adrian On Oct 8, 2013 2:49 PM, "Julian H. Stacey" <jhs@berklix.com> wrote: > > I too am seeing > > urtwn0: timeout waiting for checksum report > & > urtwn0: at uhub3, port 3, addr 4 (disconnected) > (BTW there's no external hub, uhub3 must be inside laptop, > & there's no loose connection, laptop was not touched, all work was remote) > > PS a typical sample comparison of scanned signal strengths > of one of the ~15 nets localy: > 54M -49:-86 100 EP RSN WPA WME run0 big stick, > 54M -69:-95 100 EP RSN WPA WME urtwn0 nano edimax EW-7811Un > so the edimax is typically down about 20 on left column on all ~15 local > nets. > > The aerial must be a minute fraction of the wavelength. > I suppose wavelengths are is approx: > 3 x 10^8 metre/second / 2.4 GHz = 3/2.4 x 10^(8-9) m = 12.5 cm > & ~6cm for 5GHz band. > > Cheers, > Julian > -- > Julian Stacey, BSD Unix Linux C Sys Eng Consultant, Munich > http://berklix.com > Reply below not above, like a play script. Indent old text with "> ". > Send plain text. No quoted-printable, HTML, base64, > multipart/alternative. > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" >
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