Fort Wayne, IN
|reply to djdanska |
Re: 911 is still not blocked
said by djdanska:Network based location can be done several different ways. If only a single tower is within range, location can be determined within a given radius based on signal strength. Not real fine tuned.
Someone might be able to tell me but does it take in account other cell towers it can receive, even though it can't use them? aka at&t and other local carriers? If so, it would make sense.
If the object is moving, the change in strength can help software such as Google Maps determine location by comparing the estimated difference with roads in the area if an actual GPS receiver is not turned on.
If multiple towers are within range, then triangulation can be used to narrow down the location even further. It's not absolute, but is far better then nothing at all.
San Diego, CA
The chances of me being within range of only 1 or two towers, is very rare. there are always at&t and other local gsm providers in range. That's what i meant with if the phone can or cannot get appx location from gsm or wcdma towers it's not using.
The day the child realizes that all adults are imperfect, he becomes an adolescent; the day he forgives them, he becomes an adult. The day he forgives himself, he becomes wise.