On 4/12/06, Debi Jones <[EMAIL PROTECTED]> wrote: > Verizon is in testing with it's location service, but unlikely to make it > available to developers before the end of the year. > > Other solutions around cellid can be exposed by the user if you have a S60 > phone. You can write or download a python script to reveal the cellid lat, > long info already stored in your handset. There may be some other > grassroots solutions for revealing location info already in the handset.
Correct, this is very easy to do w/ an S60 phone and python. However, one is still restricted by needing an existing database of the Lat/Lon for a cellid. I've been doing this in my area outside Detroit and so have a nice little map for myself of CellID to location. This is immediately useful as a reminder/general location application where a CellID doesn't have Lat/Lon but just context. Yahoo's ZoneTag is slowly conglomerating all of this information as well, and you can see/query the results from Flickr! tags. I imagine they'll also put out some web service in the future tied in with their Yahoo Local. You can also check out Mobi-Life, which distributes a Python SIS application and has lots of GSM to Location info, but mostly just gathered in Europe so far. Andrew > P.S. I dig what you guys at socialight are doing, btw. > > ...Debi > > > On 4/12/06, Dan Melinger <[EMAIL PROTECTED] > wrote: > > > > > > Out of the larger carriers in the US, it's my understanding that Verizon > and Sprint are using A-GPS and the GSM guys, T-Mobile and Cingular are using > alternative technology like Uplink Time Difference of Arrival (U-TDOA) > technology provided by TruePosition. > > > > > > A-GPS requires a chip in the phone while U-TDOA doesn't. > > > > > > > > > > > > On Apr 12, 2006, at 12:46 PM, Anthony Townsend wrote: > > > > > > > > > > It's the FCC not the FAA, and my understanding is that none of the US > > carriers are using tower triangluation (EOTD or other variants) because of > > the cost of network upgrades. Instead they are pushing to cost to you, the > > consumer, in the form of A-GPS equipped handsets. > > > > > > > > > > > > > > [EMAIL PROTECTED] ( [EMAIL PROTECTED]) wrote @ 4/10/06 9:35 AM: > > > > > > > > > > > > I think this is a great question. I talked to a gentleman from South > Africa > > last year at Where 2 who claimed to be a GSM expert. He said that GSM can > > locate you within something like 3 meters with no GPS support just using > > the towers, and that this was built into the GSM spec. He spoke of a case > > in South Africa where they located some sort of criminal using the GSM > > records. > > > > > > He said that CDMA on the other hand, cannot locate so precisely. > > > > > > So, to me, A-GPS was designed to make CDMA users locatable to the same > > degree as GSM. > > > > > > As an aside, does anyone know which type of cell phones are more lethal? > > > > > > Roger > > > > > > Original Message: > > ----------------- > > From: Ian | Urban Mapping [EMAIL PROTECTED] > > Date: Mon, 10 Apr 2006 01:42:23 -0400 > > To: [email protected] > > Subject: [Geowanking] E911 // cellular trilateration accuracy > > > > > > > > > > At the risk of asking (another) obvious question, I continue my naïve > streak > > > > on this listserv… > > > > > > > > > > > > > > > > I've heard very different reports of how accurate cellphone tracking > is—the > > FAA mandates something like 50% of calls must be traceable to within a > range > > of 30m but I've heard some mobile pros say they've 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 :: < mailto:[EMAIL PROTECTED]> > > [EMAIL PROTECTED] > > > > > > 120 West 45th Street 20th Floor :: New York NY 10036 > > > > > > Tel.212.242.8267 :: Fax.866.385.8266 :: www.urbanmapping.com > > > > > > > > > > > > > > > > > > > > > > > -------------------------------------------------------------------- > > mail2web - Check your email from the web at > > http://mail2web.com/ . > > > > > > > > > > _______________________________________________ > > Geowanking mailing list > > [email protected] > > http://lists.burri.to/mailman/listinfo/geowanking > > > > > > > > > > _______________________________________________ > > Geowanking mailing list > > [email protected] > > http://lists.burri.to/mailman/listinfo/geowanking > > > > > > > > > > > > > > | dan melinger > > > > | kamida :: socialight > > > > > > > > > > | email [EMAIL PROTECTED] > > > > | web http://socialight.com > > > > | office +1 212 561 5155 > > > > | cell +1 917 494 5856 > > > > | skype melinger > > > > > > _______________________________________________ > > Geowanking mailing list > > [email protected] > > http://lists.burri.to/mailman/listinfo/geowanking > > > > > > > > > > -- > <a href="http://feeds.feedburner.com/mobilejones "><img > src="http://feeds.feedburner.com/mobilejones.gif"; > style="border:0" alt="mobile jones"/></a> > > WAP site: winksite.com/mobilejones/mojo > Yahoo! IM: netbeansf > +1 816 352 2413 > _______________________________________________ > Geowanking mailing list > [email protected] > http://lists.burri.to/mailman/listinfo/geowanking > > > -- Andrew Turner [EMAIL PROTECTED] 42.4266N x 83.4931W http://highearthorbit.com Northville, Michigan, USA -- Andrew Turner [EMAIL PROTECTED] 42.4266N x 83.4931W http://highearthorbit.com Northville, Michigan, USA _______________________________________________ Geowanking mailing list [email protected] http://lists.burri.to/mailman/listinfo/geowanking
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