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  1. #21  
    Quote Originally Posted by Malatesta View Post
    You can test it two ways (besides the hard reset as ebag mentioned)
    By my way is more fun.
  2.    #22  
    Wao I just can't believe this post has gotten so big with this GPS issue on our Treo Pro(s).
    Chester Vargas - Palm VII, Handspring Visor, T2, T3, TX, Treo 650, 680, 750, Treo Pro ==> iPhone 3GS 32GB ==> Pre Plus at&t ==> Pixi Plus at&t ==> Pre Plus at&t
  3. #23  
    I think what got Berd and I so puzzled was that we both used the Motorola Q9h and had marvelous GPS performance.

    One would expect equal, if not better, out of the Pro and Fuze. My Fuze is slowly warming up but the Pro never got there.
  4. #24  
    you should get quicker lock times if you activate gps while not moving.
  5. #25  
    Quote Originally Posted by Lawmen23 View Post
    you should get quicker lock times if you activate gps while not moving.
    Why would that matter?
  6. #26  
    Quote Originally Posted by coppertop View Post
    Why would that matter?
    Your device is trying find and sync with satellites that are 11,000 miles above Earth.

    Being steady gives it a better, more consistent line of sight which is imperative for a faster fix. The more direct the line of sight, the better. Moving targets (both you and the satellite) makes things more difficult.

    aGPS cheats this by giving your phone directions to the satellites (simplifying things), making it much quicker. But standalone GPS is more a brute-force method, so ideal conditions are preferred.

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  7. #27  
    Quote Originally Posted by Malatesta View Post
    You can test it two ways (besides the hard reset as ebag mentioned)
    1. Don't use any GPS for 4-8 hrs
    2. Move/Drive yourself a good distance (20 miles?)

    When you get a GPS lock, all that info is stored in a temp file and that orbital data is "good enough" for the system to keep tracking satellites with out recalibration.
    In the 800w's ##GPS# menu, there's an option to delete data.

    Does the Pro have that?

    Has anyone tested that aGPS toggle yet?
  8. #28  
    Quote Originally Posted by Malatesta View Post
    Your device is trying find and sync with satellites that are 11,000 miles above Earth.

    Being steady gives it a better, more consistent line of sight which is imperative for a faster fix. The more direct the line of sight, the better. Moving targets (both you and the satellite) makes things more difficult.

    aGPS cheats this by giving your phone directions to the satellites (simplifying things), making it much quicker. But standalone GPS is more a brute-force method, so ideal conditions are preferred.
    A GPS doesnt sync with the (geostationary) sats.. it locks on to them and if it has at least 3 locks it can calculate its 2d location, if it has 4 its 3D location (i.e. altitude) and if it has more it becomes more accurate..

    If you stand still with a GPS it will still show a slight movement due to the nature of the system.
    If you have 2GPSs and hold them next to each other they can give a reading up to 20 meters appart from each other..

    A GPS will tend to remember where it was last first and will look for the sats that can be seen from that region. AGPS will tell the GPS where it roughly is so it can look for the appropriate sats for that region.. it will help with finding the sat locks, but it can still take some time.. especially if you are in a hilly region or downtown (urban canyon) or in bad weather.. thick fog can block the signal alltogether if you have a poor receiver (not sure about the quality of the TP one, have not tested it much)...

    So it can take seconds and it can take minutes, all normal... and doesnt matter if you move or not.. the sats dont move, so it allways calculates the location compared to the geo-stationary sats...
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    #29  
    Quote Originally Posted by Ebag333 View Post
    Code:
    [HKEY_LOCAL_MACHINE\SOFTWARE\HTC\SUPL AGPS]
    "ServerPort"=dword:00001C6B
    "ServerIP"="193.253.42.109"
    "QosPerformance"=dword:00000059
    "QoSAccuracy"=dword:00000032
    "TimeBetweenFixes"=dword:00000001
    "NumberFixes"=dword:3B9AC9FF
    "GPSMode"=dword:00000002
    "EnableAGPS"=dword:00000000
    The question is are hose settings PORT and IP for AT&Ts network? Probably not. I wonder what AT&Ts settings should be and what would happen then and EnableAGPS was turned on.
  10. #30  
    Quote Originally Posted by erenken View Post
    The question is are hose settings PORT and IP for AT&Ts network? Probably not. I wonder what AT&Ts settings should be and what would happen then and EnableAGPS was turned on.
    Google should be able to tell you. I've found Sprint's that way...
  11. #31  
    They are also going to be in the southern sky.
  12. doctj's Avatar
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    #32  
    The gps in my treo pro is definitely not working, the gps lock with google maps is 2 miles off! This occurs in several locations. My wife's iphone is spot on in the same location as is my old Nokia Navigator. With Telenav it takes several minutes before giving me " satellite signal is weak" message. Any fixes for this?
  13. #33  
    are you sure your GPS is turned on? sounds like it is using the phonecell info rather than a PGS signal..

    Try using: menu, use GPS.
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    #34  
    Quote Originally Posted by ToolkiT View Post
    are you sure your GPS is turned on? sounds like it is using the phonecell info rather than a PGS signal..

    Try using: menu, use GPS.
    Under GPS settings there's no option to switch it on or off. Settings are:
    The gps program port is com4,
    hardware port is none with baud rate 4800
    and access is set to manage gps automatically.
    Also using Quick GPS makes no difference in satellite accuracy.
  15. CDG
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    #35  
    Quote Originally Posted by doctj View Post
    Under GPS settings there's no option to switch it on or off. Settings are:
    The gps program port is com4,
    hardware port is none with baud rate 4800
    and access is set to manage gps automatically.
    Also using Quick GPS makes no difference in satellite accuracy.
    I believe Toolkit means in Google Maps under Menu.
  16. #36  
    Quote Originally Posted by charlyee View Post
    I believe Toolkit means in Google Maps under Menu.
    Yup, I dont think GM has the GPS turned on by default so will use the Phone Cell info to detirmine its location.

    GPS will never be 2mile off.. it will receive the sats and be accurate at at least about 100m or not have reception at all..
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  17. #37  
    I've never seen anything like that after extensively testing the Pro against other devices under multiple conditions with multiple software some time ago. Except if one does not hit use gps on GM and one is looking at the former location,
  18. doctj's Avatar
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    #38  
    I hit "use gps" in GM and after about 15 mins it couldn't find my location. Are my gps hardware settings correct?
  19. CDG
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    #39  
    Quote Originally Posted by doctj View Post
    I hit "use gps" in GM and after about 15 mins it couldn't find my location. Are my gps hardware settings correct?
    The settings are the same as mine and mine works.

    After you hit "use gps" does it search for satellites?

    You can give GPSToday or GPS Test a try and see if you can get a quick fix.
  20. doctj's Avatar
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    #40  
    [QUOTE=charlyee;1536920]The settings are the same as mine and mine works.

    After you hit "use gps" does it search for satellites?



    Of course it does, it just can't find any. The unit's defective I'm going to call Palm today.
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