do u have teenagers driving? doesnt this thought makes you nervous wreck? insurance rates for teenaged drivers scares me that for sure.
I leave my GPS on all the time, just in case someone needs to find me in case of an emergency like, trying to call 911 (000 down here)
that, I didnt know abouteven if you turn off GPS option, calling 911 automatically activates GPS. at least that's how it works in America.

even if you turn off GPS option, calling 911 automatically activates GPS. at least that's how it works in America.
really jiro.
True! Are you serious?
Q: I read that all new mobile phones have some sort of GPS tracking installed in order to trace the location of 911 calls. Is there any way to turn this off?
A: While FCC rules require that phone companies provide all handsets with some way of tracing 911 calls, whether or not your cellphone has a true GPS inside it depends on the carrier. While AT&T and T-Mobile most often determine a 911 caller's rough location by triangulating the signal using different radio towers, Sprint and Verizon rely on real GPS chips in their phones. Still, the result is roughly the same.
"A 911 call triggers the chip, and the coordinates are sent to the local PSAP [Public Safety Answering Point]," says Verizon spokeswoman Debra Lewis. This system is generally accurate within 160 to 500 ft.
While the only way to turn this tracking off is to shut down your phone, it is not actually activated unless you call 911. If you think this raises privacy concerns, just consider the nature of mobile phones, which are continually connecting to towers. Records are kept of every tower your phone communicates with. While it may not be as precise as true GPS, this information is being recorded any time your phone is on.
Read more: Is Your Carrier Tracing You via GPS and 911 Calls? Tech Clinic - Popular Mechanics
The FCC's wireless Enhanced 9-1-1 (E9-1-1) rules seek to improve the effectiveness and reliability of wireless 9-1-1 services by providing 9-1-1 dispatchers with additional information on wireless 9-1-1 calls. The FCC's wireless E9-1-1 rules apply to all wireless licensees, broadband Personal Communications Service (PCS) licensees, and certain Specialized Mobile Radio (SMR) licensees.
The FCC has divided its wireless E9-1-1 program into two parts - Phase I and Phase II. Under Phase I, the FCC requires carriers, within six months of a valid request by a local Public Safety Answering Point (PSAP), to provide the PSAP with the telephone number of the originator of a wireless 9-1-1 call and the location of the cell site or base station transmitting the call.
Under Phase II, the FCC requires wireless carriers, within six months of a valid request by a PSAP, to begin providing information that is more precise to PSAPs, specifically, the latitude and longitude of the caller. This information must meet FCC accuracy standards, generally to within 50 to 300 meters, depending on the type of technology used. The deployment of E9-1-1 requires the development of new technologies and upgrades to local 9-1-1 PSAPs, as well as coordination among public safety agencies, wireless carriers, technology vendors, equipment manufacturers, and local wireline carriers.
LOL you are right. I don't know why I want GPS on.I feel weird to turn GPS off, WIFI off, BLUETOOTH off while I am at work. BLUETOOTH is hardly used for me. I will expertiemnt with GPS and WIFI to see .. I am afraid that no one wont send me messages without wifi??? I would not be worried if i turn GPS off but wifi?
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iPhone
BlipPlus
Blackberry
BlackBerry App World - BlipPlus from BlackLine GPS
Only on Blackberry and iPhone. No android yet. Sorry
Blackline GPS - ESCORT Entourage CIS Product Overview
If you're worried about not remembering to turn stuff off and on, there are some apps (Tasker is the one I know best, but that's not free) that you can use to automate things like that, and it'll let you do all kinds of stuff, like only turning on Wifi when you're at your house and at work, or turning off the GPS for 9AM-5PM, etc.
Google Latitude does this for Android, unless I'm missing something. In that case, simply be aware that anyone you're friends with on Google (unless you change the privacy settings) can see what your current location is.
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For navigation/GPS stuff, that's one description I missed:
(I'm using Android terms going forward)
Fine-level location: This uses your GPS, and requires more battery and a clear view of the sky. GPS works because the military has a large number of satellites orbiting the Earth. They don't actually do anything other than transmit directly downwards where in space they are. GPS devices (like your phone or your car) then picks up the signal for several of these all at once, and uses math (trigonometry, mostly) to figure out where it is in relation to those satellites, and uses that in conjunction with a map to tell you where you are.
Because these were made specifically *for* being able to tell where you are, the detail is as sharp as a few feet - ie after it's got a lock on several satellites, the location your GPS can show you on a map is generally accurate give or take about 5-10 feet.
Coarse-level location: This uses a combination of wifi networks and cellular networks (ie whatever is available) and a database of where those are located at, in addition to signal strength, to estimate your location.
This is more of an auxiliary function of those networks (the primary one is, y'know, letting your phone work), and as such is much less accurate than using your GPS. You can generally get an accuracy of between 100-500 feet with this, which is enough to, say, tell you which neighborhood of a city you're in, but not very useful for turn-by-turn navigation. However, for something such as using Google Latitude to report your location (such as to allow family members to find your location when you get lost, or to track your phone if it gets stolen), it's usually "good enough".
I forget what it call but I am sure it is not GPS that it use network carrier to find the location that perfect for inside the build, subway, like "Google Latitude"
https://www.google.com/latitude/b/0
It tell where exactly are you thru IP address and no GPS need.
Right, that was the second, "coarse-level location" that I mentioned. It uses triangulation with the cell towers that your phone receives signal from (not your IP), but as you said, that works without GPS. The GPS is mostly an extra level of detail (ie able to pick out exactly where you are, down to the part of a street, rather than a 5-block or so radius).
Location Identity using mobile networking applications
By: Rahul Aggarwal|2011-05-16|Gadgets and gizmos
The location of the user is identified by using a combination of mobile IP address, cell triangulation and GPS. Based on the user setting, the solution proactively notifies its user about interesting places, events, music, movies and other activities in the surrounding areas.Instead of searching, the users can now use their phones to get updates on their favorite hotspots, activities, events of interest, recommended bargains that are chosen by the friends around them.
yes REALLY. it's called "Enhanced 911" aka E911
Is Your Carrier Tracing You via GPS and 911 Calls? Tech Clinic - Popular Mechanics
Enhanced 9-1-1 - Wireless Services
Also, Should I turn bluetooth too? I have no idea what bluetooth is used for?
I will leave WIFI on and GPS on. Thanks!
Advanced Task Manager and Juice Defender app for saving battery life
. I don't know which one is better.
Juicedefereder
JuiceDefender - Battery Saver | Battery manager app for Android
Advanced Task Manager
https://market.android.com/details?id=mobi.infolife.taskmanager
Wi-Fi WILL NOT shorten the battery life if actually use it than rather use 3G.
Yeah. I use GPS on my iPhone while walking and ride NYC subway to reach hotel. battery drained quickly. Wow. I should carry extended battery pack for emergency.
That's right. I missed your mentioned.
The triangulation should track thru ip address. If no Ip address then how to get internet work?
cell phone location triangulation