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Thread: No Lock, WHY!?!?

  1. #1
    Constant Bitrate nibix's Avatar
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    No Lock, WHY!?!?

    Ok, I just had my TN-200 GPS unit installed as seen below. My computer is in the trunk so the GPS is connected to two 10' USB extension cables. I can't seem to lock any satellites at all. Here are my three theories:

    1) The heated windshield is blocking the signal?
    2) The USB cords are too long?
    3) A mix of both (I think this might be it)?



    Would moving it to where I pointed out make any difference? The heated lines stop at that point, but it is right next to the frame. Is the USB device not getting enough power?

  2. #2
    Maximum Bitrate carpcnoobie's Avatar
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    Very likely a possiblility of both. Most of the time I see in the stores, USB cables are powered when the extensions get a certain length. Like USB hubs.

    As for the heated windshield.

    I never remember seeing the lines for the windsheild in the front like that. You certainly could 'try' to move it, but as I remember, windshields with the problem tend to be coated with a metal laced film (not sure exactly). This blocks the GPS signal. Did you actually try the GPS on the roof or elseware to confirm it is able to get a lock under best conditions?
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  3. #3
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    those are photoshop lines .... or whatever .... there are no heated windshields like that ..... windshield (FRONT) gets heated by air from heater ...

  4. #4
    Maximum Bitrate Yuriy's Avatar
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    My external GPS antenna is sitting behind a heated back window and it still can connect to about 10 sattelites in a matter of seconds.
    What your problem might be is incorrect protocol settings. Most GPS receivers will work if you set the protocol to NMEA 4800, but to acheive the optimal performance you might have to play with the software settings a bit.
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  5. #5
    Constant Bitrate nibix's Avatar
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    Q_gamelogic,
    There are in fact visible hairlines in the front windshield. I am going to try moving the GPS a bit but there is very little slack and all the wires are cleanly installed.

  6. #6
    Newbie
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    annoying

    I would find that **** annoying all them lines in the windshield

  7. #7
    Constant Bitrate nibix's Avatar
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    They are barely noticeable. By the way I have seen up to 2 satellites but no lock.

  8. #8
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  9. #9
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    hah .... what car is that ?????



    never seen that ...

  10. #10
    FLAC Pudge's Avatar
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    I can see why you were skeptical tho, I haven't seen anything like that either.
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