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36

Four ways: Upgrading the software, fixing the hardware, resetting the GPS settings/data, and using "fake" GPS. Upgrading the Software Samsung definitely released some bad GPS firmware, which does not help things. Fortunately, good code is included in all of the recent 2.2 updates. If you can, upgrade your software to 2.2. It has many advantages ...


16

Note: many of these applications use map data from a really cool free map project called OSM (OpenStreetMap), which anyone can contribute to. OSM is constantly improving, but in many areas it may lack information like house/building numbers. Free: Google Maps Google Maps does have some offline functionality, but there are a few catches: the size of the ...


15

You might be interested in Assisted GPS Assistance falls into two categories: Information used to more quickly acquire satellites It can supply orbital data or almanac for the GPS satellites to the GPS receiver, enabling the GPS receiver to lock to the satellites more rapidly in some cases. The network can provide precise time. The ...


15

If I'm not mistaken it is to access Google's (presumably large) wireless MAC address location database which like Skyhook (a competing service, also previously used on iOS devices) allows a handset to scan for wireless networks nearby and send their MAC addresses (possibly SSIDs as well, I haven't looked into it too depply) off to Google to compare to their ...


15

GPS uses radio frequencies between 1 and 2 GHz (L1 signal at 1.57542 GHz and L2 signal at 1.2276 GHz). These have to get through for GPS to work, which is not the same as visibility. For example, my GPS (Garmin Etrex Legend HCx) gets a fix on the top floor of the house, below the roof made of tiles, insulation and drywall. It doesn't get a fix on lower ...


14

That is done by gpsd. The XTRA files are the current GPS Almanac. The location of where to download the XTRA files to is defined in /system/etc/gps.conf. These files contain data that speed up the GPS, which will result in faster GPS position fixes.


13

Google Maps 5.0 now supports offline mode!


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 ...


12

What are your needs? Just maps? Point-of-interest data? Navigation? I use MapDroyd, which is free and lets you download OpenStreetMap data. I see that they have some other products. NavDroyd (paid), which is mentioned above by @ripper234 does navigation. TravelDroyd, which has point-of-interest information, also seems to do navigation based on the ...


12

Since Jun 27th 2012, Google Maps for Android is offline featured. They provide a 10-mile radius of map cache, and since you can point to different locations and cache them, you can virtually cache the entire world. Open Google Maps App; After the map loads, press the menu button and select "Settings"; From the "Settings" panel, select "labs" and enable ...


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 ...


11

Install Spare Parts. Open it and click on "Battery History". Select the drop down list at the top and from it choose "GPS Usage". It will show you what apps have been using the GPS. Note that you'll need to have your device unplugged at the time as it's actually looking for battery usage as used by apps accessing GPS.


10

Google Maps Navigation is currently available in the United States, Canada, UK, Ireland, Austria, Belgium, Denmark, France, Germany, Italy, the Netherlands, Portugal, Spain, and Switzerland.


10

If by internal GPS you mean the postion fix using GPS satellites, you can use "GPS Status & Toolbox" app to get a fix and also know how long it took to get the fix.


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, ...


10

One of the apps you have a picture of, the venerable GPS Status & Toolbox, describes this claim in the app description: Keep your GPS fast: reset it or download A-GPS data regularly for faster fixes Wikipedia does a great job defining the basic concepts behind Assisted-GPS: Standalone GPS provides first position in approximately 30–40 seconds. ...


10

For the best resource out there, use PDADB. This details every comprehensive chip-set used, for the Droid Charge, this is the spec sheet given. As for Huawei U8160, this is the spec sheet given on that page. Depending on how open the manufacturer is with the more intimate details, some may be marked proprietary which will be stated clearly. The other ...


10

It sounds like Google Latitude does what you want. Once you opt-in you can then share your location data with your wife, and she should be able to check your location anytime. As far as I know, once you choose share your location data with someone they can retrieve it anytime without having to explicitly request your permission. Latitude is built into the ...


9

It can if you turn the function on in the settings. In the settings menu there's an option for "GPS", that when checked turns on geotagging: via GSM Arena & CareAce


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

Yes, GPS does need a clear view of the sky. However, that does not mean actual GPS implementations have to rely only on GPS signal to get its location. Most actual GPS implementations (including Android) caches last known location and uses Wifi/Cell positioning to get position information even when there is no GPS signals at all.


9

The GPS icon in the status bar means that an application is currently using the GPS so it is draining the battery. GPS does not however drain any battery just because you have it enabled in the settings menu.


9

No it's not. Commercial GPS receivers (like the one in your phone) only work below 18 km and below 515 m/sec. The rationale behind this is that this way they can't be used in ballistic missiles (yes, I'm serious.) In order to circumvent this you'd need to flash a different firmware to your GPS chip, if you didn't do this you're safe. No current android ...


9

Apps can get your approximate location without GPS, but only if they have the "coarse location" permission. The "fine location" permission lets an app get your GPS location too, if GPS is enabled. When you an install an app, Android shows you the permissions it needs. If you don't see coarse or fine location in the list, the app can't get your location.


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 ...


8

Assisted GPS is a system which can improve the startup performance of a GPS satellite-based positioning system. Wikipedia has your best answer.


8

I'm going to say no. From the article you linked, EGNOS is primarily designed for airborne use and has limited ground applications. EGNOS looks to be designed more for commercial applications (e.g. embedded navigation systems in vehicles, airline, etc.), not so much consumer devices Nexus One's GPS is provided from the QualCom QSD8250 "SnapDragon" chip ...



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