From ian@urbanmapping.com Fri Jul 6 02:41:01 2018 From: Ian | Urban Mapping To: cypherpunks-legacy@lists.cpunks.org Subject: [Geowanking] E911 // cellular trilateration accuracy Date: Fri, 06 Jul 2018 02:41:01 +0000 Message-ID: <172289246413.3881296.12659522815648792458.generated@mail.pglaf.org> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="===============1608426272718222567==" --===============1608426272718222567== Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable At the risk of asking (another) obvious question, I continue my naove streak on this listserv=05 I=12ve heard very different reports of how accurate cellphone tracking is=17t= he FAA mandates something like 50% of calls must be traceable to within a range of 30m but I=12ve heard some mobile pros say they=12ve heard of it getting as good as several feet. Obviously this varies depending on geography (urban, rural, topography), but does anybody have any idea how the US wireless carriers stack up? And how does this compare to phones with GPS? Ian White :: Urban Mapping LLC :: ian(a)urbanmapping.com 120 West 45th Street 20th Floor :: New York NY 10036 Tel.212.242.8267 :: Fax.866.385.8266 :: www.urbanmapping.com _______________________________________________ Geowanking mailing list Geowanking(a)lists.burri.to http://lists.burri.to/mailman/listinfo/geowanking ----- End forwarded message ----- -- Eugen* Leitl leitl http://leitl.org ______________________________________________________________ ICBM: 48.07100, 11.36820 http://www.ativel.com 8B29F6BE: 099D 78BA 2FD3 B014 B08A 7779 75B0 2443 8B29 F6BE [demime 1.01d removed an attachment of type application/pgp-signature which h= ad a name of signature.asc] --===============1608426272718222567==--