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Thread: TomTom now slow to acquire satellite signal

  1. #1

    TomTom now slow to acquire satellite signal

    When I first got my XL335S, it seemed to pick up the satellite signals very quickly, especially after connecting to TTHome. Maybe 5-10 seconds.

    Since then I have updated to a newer map and official navcore (9.026) and it now is much slower to acquire the satellite signal, even after connecting to TTH. Maybe 30 seconds.

    Any thoughts, suggestions?

  2. #2
    Join Date
    May 2010
    Posts
    45

    Re: TomTom now slow to acquire satellite signal

    there is a gps update for sat correction or better still take it of your original backup copy and paste

  3. #3
    Join Date
    May 2010
    Location
    Norfolk UK
    Posts
    166

    Re: TomTom now slow to acquire satellite signal

    Quote Originally Posted by paulsmith6 View Post
    there is a gps update for sat correction or better still take it of your original backup copy and paste
    When you connect to TT Home are you updating the quick gpsfix files, these will enable your tomtom to get a fix by preinstalling sat positions, these last for 7 days, so a regular update is necessary.
    TomTom Go730 + Bootloader 5.5229 + Navcore SE 9485 + Latest UK Map
    Garmin Zumo 660LM + Latest Firmware and Maps
    Windows Ultimate 7 64bit + OCZ-SSD + i7 2600K @ 4.6 GHz + 2GB Radeon HD 6970 + 8GB DDR3 1600MHz

  4. #4

    Re: TomTom now slow to acquire satellite signal

    Yes, I connect my TomTom to TTH all the time and I still have the problem :-(

  5. #5
    Join Date
    May 2010
    Location
    Holland
    Posts
    149

    Re: TomTom now slow to acquire satellite signal

    Did TTH actually download the QuickGPSfix? And is it on your TT (there should be a couple of files in the 'ephem' folder in the root of you TT)?

  6. #6

    Re: TomTom now slow to acquire satellite signal

    Well there are 2 files in the ephem folder (ee_meta.tlv and ee_meta.txt). They are both very small files (1k)
    They are dated 4 months ago (Feb.23).
    Should they have a current date?
    When I connect to TomTomHome, I remember I used to see QuickGPSFix being downloaded. But since I changed my map and received an updated navcore from TomTomHome, I haven't seen QuickGPSFix being downloaded anymore.
    Is there a way to have it regularly downloaded again?

  7. #7
    Join Date
    May 2010
    Location
    Holland
    Posts
    149

    Re: TomTom now slow to acquire satellite signal

    There should be three files in the ephem folder: ee_meta.tlv, ee_meta.txt and lto.dat. I've included them in the attachment. Extract and copy them to the ephem folder. Then connect to TTH. I think TTH will update them now.
    Attached Files Attached Files

  8. #8

    Re: TomTom now slow to acquire satellite signal

    Thank you. Thank you. Thank you etc.
    It worked like a charm!!!!
    I have no idea how it works, but it works.
    Get signal now in 10 seconds instead of 45.
    Did I say Thank you? :-)

  9. #9
    Join Date
    May 2010
    Location
    Holland
    Posts
    149

    Re: TomTom now slow to acquire satellite signal

    You're welcome .

  10. #10

    Re: TomTom now slow to acquire satellite signal

    I have a go 500 with the same problem but worse, sometimes wont pick up for an hour will the above work for mine? i cannot find that folder.

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