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Thread: GPS tracking.

  1. #1
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    moahdib's Avatar
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    Post GPS tracking.

    I wonder if it's just my GPS receiver ( RandMcNally) that does this... off and on, my GPS has a very tough time finding the satellites and getting a position fix. Sometimes it never finds em, and other times if finds it in like 1 minute tops. I'm using Street Atlas USA RWE.

    For peopel who have this receiver, does your GPS randomly finds satellites or does it always work??
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  2. #2
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    Where is the reciever? It should have a good line of sight.. Also, I noticed downtown my reciever will not update very quickly because of the tall buildings sometimes.. That may be a problem as well.
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  3. #3
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    Receiver sits on the back of the car closest to the back window on the inside of course...wouldn't want someone to jack it.
    It's a 97 civic coupe and the window is tinted 5% ( meaning 5% visibility ) much like those limo's. The fact that it does work sometimes tells me that the tint has nothing to do with it. It must be something else....
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  4. #4
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    Well its possible the tint is obscuring its ability to keep a lock.. It just may cause the reciever to be more likely to lose tracking when around buildings or other obstructions. The the exact location of my reciever.
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  5. #5
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    its that stupid RWE u are using. I noticed that when i used it. Use MS streets & Trip.

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  6. #6
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    Some things I have noticed with my gps :

    Position in the window makes a difference. I know some people that cant get a signal in the front, but works fine in the back. I dont know why, the signal should go fine through glass....

    The most likely cause is weather and speed.

    The way the satelights try to lock the signal is a lot of math work sending signals from one sat to the next, (its based on the pathagarean therom) I dont know how to spell it....Its triangulation, and when you move, it has to recalculate. It also bases the data on the last know location of the satelight, so if you move a lot ( or the satelight moves a lot) from when you last had the signal locked, it will take longer to lock the signal.

    If you want a quick signal lock - pull over. stop moving.

    The other thing is weather. cloudy skys can and will make it much more difficult to lock onto the signal.

    I really doubt the window tint is a contributing factor, but I wouldnt rule it out entirely.
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  7. #7
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    It is the GPS receiver that is the problem.

    Remember the GPS signal is very weak to begin with (traveling 22,000 miles).

    I use a Garmin GPS35 receiver only (must connect to computer to use...no display)

    It never loses lock, even through momentary trips under a tunnel, trees are no problem, and it syncs up in about 10 seconds even while travelling at 400 KTAS. (Knots true airspeed).

    The cheaper units cut corners to keep the price down, and some are simply older technology.

    BTW I use RWE and Streets and trips...it isn't the software.

    Oh yea, and mine is suction cupped to the front of the windshield just above the dashboard.

    [This message has been edited by DodgeCummins (edited 02-02-2001).]

  8. #8
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    Question

    Ummm... After reading these posts I'm guessing that I won't be able to mount my receiver on the headliner, next to the courtesy light, as planned, huh..???

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  9. #9
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    Dos: Sure ya can! Just dont expect it to work.
    I plan on getting a new GPS soon..since the earthmate was a mistake...I'll let you all know how it works out.

  10. #10
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    abcd> I am SURE that the problems lies NOT in software, for I have both MS Streets and RWE installed and both can't get a lock.
    04 Acura TL w/ core2duo 2ghz laptop w/ 1gb RAM on a docking station.

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