Results 1 to 6 of 6
Discuss [iPhone 3G][GPS] How it works? at the iPhone 3G - Hackint0sh.org; This questions comes up lots. I have looked hard for an answer. This one is ...
  1. #1
    Senior Professional Array

    Join Date
    Aug 2007
    Posts
    280
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Lightbulb [iPhone 3G][GPS] How it works?

    This questions comes up lots. I have looked hard for an answer. This one is worth considering and knowing. Thought I make the answer available here:

    http://www.everyipod.com/iphone-faq/...avigation.html

    If you have more information please provide.



  2. #2
    Advanced Array TheCondor's Avatar

    Join Date
    Mar 2008
    Location
    Italy - Toscana
    Posts
    35
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default

    the bundle software GOOGLE MAPS use the A-GPS antenna for know him actual position. And it works great!
    But google maps need to stay on-line for download the map and it cost... and it doesn't told you the vocal direction (TURN LEFT, TURN RIGHT...).
    So it's impossible to use it for drive in car pratically.
    But TomTom has confirmed that they are ready whit their software, and also another company TeleNav.
    TomTom i think that wants a lot of money for their software... i think about 80euro/100USD.
    Iphone 1.0.2 OTB @ 1.1.4

    Macbook 2,2ghz - 4Gb Ram - 250Gb HDD

  3. #3
    Senior Professional Array

    Join Date
    Aug 2007
    Posts
    280
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default

    Here is GIZMODO on teleNev

    http://gizmodo.com/5024018/telenav-c...navigation-app

    It better not be true that telenav will be it since these guys charge for the service...like $10 a month..that is the worst......at least that is what i understand from their website...
    Last edited by naximus; 07-15-2008 at 09:11 PM.

  4. #4
    Rookie Array

    Join Date
    Feb 2008
    Location
    N/A ... yes North America for now. Maybe Ukraine later.
    Posts
    18
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default

    Quote Originally Posted by naximus View Post
    This questions comes up lots. I have looked hard for an answer. This one is worth considering and knowing. Thought I make the answer available here:

    http://www.everyipod.com/iphone-faq/...avigation.html

    If you have more information please provide.
    The assisted GPS (AGPS) on the iPhone is also able to act independently of the phone system and WiFi. There are some assisted GPS for some cell phones that use processors of lower computing power that throw the calculations back to the cell provider network. They don't work in the absence of cell signal. Apple has a general purpose GPS, that is able to use additional information from the cell tower to speed the time to a "fix". Typically starting a GPS unit cold requires some time for it to listen to the satellite data transmissions and to determine the current time of day, general location it is in, and determine the table for satellite positions. This can on old GPS units take several minutes, 1 minute is still not unusual. A "warm start" for a typical GPS can still take 20-30 seconds easily. A-GPS gets hints from the cellular network that speed the initial location fix. This process is distinct and different than Apple location services. In the absence of a good GPS signal, such as very heavy and wet solid tree cover or more likely an urban setting with very tall buildings, location services will use information on available logged WiFi access points (our house's is logged off by several hundred meters due to the people who mapped it and local terrain) and on cellular tower information based on signal strength to multiple cellular towers. Without GPS the iPhone puts my bedroom about 200 meters away and across a road. With GPS on the iPhone 3G the location is more precise and is wandering from my driveway to my home office through the bedroom area.
    The geo-location info on a couple of snapped photos was dead on. And with Google Maps active and driving up the road the GPS was faster to start up and tracked my position better than our car mounted navigation system. The difference is about 4 years of technology advancements. There are significant advantages to the car navigation system over the iPhone, however, I can't put the car in my pocket and use it getting off a plane in Kyiv.

  5. #5
    Professional Array

    Join Date
    Feb 2008
    Posts
    79
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    10

    Default

    Will be released soon and cheap approx $70 for 1st Gen GPS, but i think software may work for 3G also.Open source


    http://iphone-gps.blogspot.com/
    iPhone 8GB - $249 Refurbished


  6. #6
    Advanced Array TheCondor's Avatar

    Join Date
    Mar 2008
    Location
    Italy - Toscana
    Posts
    35
    Post Thanks / Like
    Downloads
    0
    Uploads
    0
    Rep Power
    0

    Default

    The opensource ways are great! But the problem is the map!
    Only the commercial software house have the economic possibility to digitalize the map and update it costantly.
    Iphone 1.0.2 OTB @ 1.1.4

    Macbook 2,2ghz - 4Gb Ram - 250Gb HDD

 

 

Similar Threads

  1. iPhone 4.0 What Works, What Doesn't
    By JailBirdy in forum iOS 4.x (iPhone OS 4.x)
    Replies: 22
    Last Post: 06-27-2010, 04:54 PM
  2. Replies: 46
    Last Post: 12-14-2008, 10:53 AM
  3. Iphone works without battery?
    By dadahtml in forum Hardware
    Replies: 2
    Last Post: 04-10-2008, 10:39 PM
  4. Does StealthSIM works with every iPhone?
    By Mark151 in forum Turbo-, Supersim and Simcloning Solution
    Replies: 1
    Last Post: 01-15-2008, 05:41 AM
  5. FS the PPS works with an iphone downgrade from 1.1.1
    By parkertseng in forum Flea Market
    Replies: 0
    Last Post: 10-06-2007, 01:36 PM

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Powered by vBulletin®
Copyright © 2014 vBulletin Solutions, Inc. All rights reserved.
Search Engine Friendly URLs by vBSEO
(c) 2006-2012 Hackint0sh.org
All times are GMT +2. The time now is 06:25 AM.
twitter, follow us!