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13

GPS itself does not need a network connection to any server to work. It just needs a signal from a least 4 GPS satellites to calculate a good position fix. There is also the GPS Almanac, which basically provides future data on where the satellites are expected to be in a given time in the future, usually up to 7 days. This can be used to speed up the ...


11

This shows the difference between AGPS and GPS. AGPS (Assisted GPS) uses a small amount of mobile data to establish a rough location fix (about 1km-100m accuracy) based on the cell towers near you. This gives a faster initial location fix than just GPS. Since you had roaming disabled, AGPS wasn't available and getting a location fix on just GPS can take a ...


10

Walking Navigation was just released today [Sept 9] as an update to Google Maps 4.5.0


10

If you enabled "My Location" in Settings > Location & Security > Use wireless networks then your Cell/Wifi and/or GPS data will be sent to Google to triangulate your location if there is an application in the phone that requested for location. Your GPS data may also be sent to Google if you're using Google Latitude, Google Navigation, ...


9

If you simply want to find each other, I would use Google Latitude, included in Google Maps, which allows almost live updates (about every five minutes-ish, usually), and gives all the options of Google Maps, including just a few clicks to see a map or use the built in turn by turn Navigation to find each other. See this similar question for some other ...


9

I've actually been writing an application that uses GPS, so I can shed some light on this. onik is correct about the AGPS vs GPS. Additionally, though, GPS can be affected by a number of factors which can reduce accuracy or the ability to receive a signal at all: GPS accuracy is affected by a number of factors, including satellite positions, noise ...


9

No. Bad cellphone coverage decreases battery life because the phone has to transmit with more power to be able to communicate back to the cell tower. It's like when you can barely hear someone hollering at you: you shout louder too to make sure they can hear you. But GPS is a one-way signal: the phone only receives it, it doesn't transmit anything. It ...


6

GPS generally affects battery life significantly only when used (in standby, its energy consumption is neglible, usually far below 1 mW). But when it tries to aquire a fix (i.e. you want to know your current position), it might reach consumption values comparable to your device's screen (~500 mW). So in your described situation, it might influence battery ...


5

It is actually not the hardware at all. There is a special file in the android system called gps.conf. This file specifies the GPS servers that the device will use. Each manufacturer wants to use their own special GPS servers instead of the main ones from Google (some have different values for different devices). This means that different devices connect to ...


5

No, there is no way to track it without having it configured in some way to connect to a wireless source of data. Without a SIM card you can't do that via a service provider and without having the Google account configured (and thus an authentication token that identifies your phone) you can't do it via WiFi (if you have it turned on).


5

You can activate the Airplane mode to shutdown everything (calls, wifi, etc), and then re-activate the GPS. Only the GPS Antenna will be activated... I think :D


5

10 m? You'd be lucky to get that kind of accuracy outdoors. I'm the developer of Car Dashboard, which is a car home replacement that includes GPS features like speedometer, etc. I have the default minimum GPS accuracy set to 200 m which seems to work pretty good for most users (I also have it adjustable in the settings in case they have issues). On ...


5

GPS - all GPS systems get signals from the satellites. They never send data to the GPS satellites. Your phone would need a much larger antenna to send a signal to them. Systems like OnStar do send your position back to their servers. Google servers do get your position information so they can calculate directions and pull in the tiles for the map. The US ...


5

Dan already pointed out that this is more a social problem. Talk with your parents, express how you feel about this. The feeling of being constantly monitored is sure not very pleasant. That said, the only way to make it hard for someone to monitor the location with the help of your Android phone is by ensuring that you have a clean initial setup and a ...


4

While a data connection might prove helpful for a faster fix (see: AGPS), it's not strictly necessary to have one. There a a lot of "Offline GPS Apps" available. I personally e.g. used Locus Maps successfully for that in the past, but there are plenty of similar apps available. Tracks can be stored on the device, of course, and do not need to be sent to a ...


3

If you have Froyo or newer (2.2+) you can use SeekDroid (Market link) or for lower versions the same company did Find My Phone (Market link). I've tested only SeekDroid, works great with the web interface, with Find My Phone you only get the GPS coordinates via text message, but you can input the coordinates to Google Maps for example.


3

There are some solutions available on the playstore. One of them is Traccar (the link belongs to the Android client), which logs to a traccar server you can define. The server software is open source (at least that's what the app description claims), so you can use it on your own server. Written in Java, it should run on most operating systems. For more ...


3

if you believe that your parents are tracking you with your android.do this 1:backup your favorite apps. 2:factory reset the phone. 3:encrypt your phone.(this way nobody else can access your phone) 4:for extra protection you may add pin so that you can lock down parents from accesing your settings. 5:if you are going a step further ...


3

It's likely due to the fact that GPS is simply not very well suited for getting precise altitude measurements, and never has been. Certainly not typical consumer-grade chips. Garmin suggests that variances of up to 400 feet are to be expected in their devices, for example. It's just a geometry problem. With that in mind, I would doubt that Android has much ...


2

data files are usually kept in either /data/data/[packagename]/ or they could be stored on the sdcard. [packagename] will be something like com.fitnesskeeper.runkeeper.pro. The data file your looking for will probably be in that directory (well, one of the sub-directories any how). As for if they store the data on the sdcard, most developers do not ...


2

Per your last comment, you seek Runkeeper Pro (appbrain link) also check out runkeeper.com. I highly recommend it although I'm most likely underestimating it since I just use it for running. It keeps track of your route, time, distance, elevation, calorie burn, etc. Your hiking, jogging and snowshoeing tours will each be saved to your (shareable) activity ...


2

I never used those tracking apps, but maybe you can decrease their polling frequency?. This will decrease the accuracy of the tracking, but generally you don't need the app to track every meter you move.


2

See my answer here on some ways to save battery power on your phone.


2

Well, you can try using avast! Anti Theft, but you must first install avast! Mobile Security because it comes bundled with it. Can be considered as bloat because you don't seem to need the anti-virus features. But avast! Anti Theft is integrated online, which means that you can control your phone using the avast! web site, apart from controlling the phone ...


2

The best option is Google's My Tracks Follow the link and see the features yourself. Everyhing you want is there. And the best part is it's free!! Hope this helps


2

According to Google Support: My Places gives you easy access to your important locations and personal Maps history. Whether you’ve starred or searched on your phone or computer, in My Places you’ll find your: Offline Maps Starred places (including Home and Work locations) Recently viewed Maps items Directions Search queries My Maps ...


1

I actually think your best bet would be to develop the app yourself. I know that you consider it a last resort but you will get exactly the app you want, you can get the app to talk to a web service that writes the data away to a database. Don't forget security, https between the Android devices and t



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