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Thread: loosing lock on.

  1. #11
    Maximum Bitrate carpcnoobie's Avatar
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    I had mine on the roof as well and occasionally lost signal for a short period of time when I was driving in Manhattan. But then again, I wasn't terribly surprised nor did I ever lose my way. The lock came right back and I navigated my way thru NYC.
    Progress Meter:

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    "It works! It works! I've finally invented something that works!" -- Doctor Emmit Brown

  2. #12
    Low Bitrate fishy's Avatar
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    lock and planes

    hi all,

    my findings with the BU-303 models are that they respond REALLY well to a metal surface underneath, hence the quite strong magnet inbuilt, which helps its inbuilt "active" antenna.

    also, if an aircraft flys overhead, this can cause a signal loss thanks too the planes "rad-out" system, which sends radio waves to the earth, that bounce back to the aircraft in order to calculate its own alt. etc etc.

    note - not all aircraft have these, just major planes like Boeing, Airbus etc.

    also - this radar unit in aircraft is extremely powerful, if it is fully charged (IE in operation) and you walk directly under it while an aircraft is using the radar you will no doubt get cancer, and prolly microwave your insides

    this can cause the BU-303 models to drop out, due too all the interferance.

    major aircraft use this when in flight, IE after climbing to altitude or before decent, so if you have aircraft flying overhead, dont expect the same performance from your BU-303 model...

    just my observations.

  3. #13
    Newbie
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    I alos have a BU-303 from Ebay. Placement is very important in locking in. I have noticed that the magnet facing down, on top of my truck works the best. I have had it on my windshield, by rear window, my side windows, mounted verticle, under glass etc. A glass between the reciever and the sky can be a difference between locking in on 4 sats or 8 sats in the same spot. I plan to locate mine outside on top of my truck. I hope it is water / weather proof.

  4. #14
    Maximum Bitrate Bravellir's Avatar
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    The one I have, from navilock, i asked them and they said that it's not water proof
    Ikea Case. Epia M10000.M1-ATX. 512 Mb. 2,5" 80 GB HDD. 7" Lilliput. BU-303 GPS. Sony Joystick.
    Status -->
    Lilliput Installed (not indash yet..)
    BraveCar 2.5

  5. #15
    Constant Bitrate
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    Can't really see them designing it with a magnet.. as this is surely meant to be stuck on the car roof, think they are water proof!


    Mines on the roof now and i'm still loosing lock ever so often which is really annoying.

    hows does everyones perform in a built up area? for example do you loose lock (even for a couple of seconds) every 1min? 10min? 30min?
    Volvo C70 - Installation in progress *gulp*

  6. #16
    Maximum Bitrate Bravellir's Avatar
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    Ikea Case. Epia M10000.M1-ATX. 512 Mb. 2,5" 80 GB HDD. 7" Lilliput. BU-303 GPS. Sony Joystick.
    Status -->
    Lilliput Installed (not indash yet..)
    BraveCar 2.5

  7. #17
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    Quote Originally Posted by Bravellir
    When i rotate it to make the red led face foward it improved signel by one third.
    Sadly enough this helps my BU-303 a lot too.

    Going to have to try that SIRF emulation too sometime.

  8. #18
    Maximum Bitrate carpcnoobie's Avatar
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    I found out the hard way that my BU-303 is not water proof. Mine got wet twice. The first time, I started having a problem with it working longer then 10 mins. It would work, lock and then about 5 mins later would completely die. I opened it up, dried it out and let it sit for several days and it worked again. The second time it just stopped working entirely and I let it dry for a week. Still works, but I'm going to try dipping it in the stuff you use for put a rubber grip on tools. I read a thread in here about it.
    Progress Meter:

    [|||||!||||'] 95% complete

    It's in... it's finally installed!!!! But never finished!

    "It works! It works! I've finally invented something that works!" -- Doctor Emmit Brown

  9. #19
    Variable Bitrate
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    i had the same problem until i found out it was my lilliput even if it was on the roof but still about 50 cm from the lilliput and even in the back of the car in the line of sight of the lilli, and under the rear window with window heating it doesn;t really work well, i have a spoiler thats hollow from the inside its from fiberglass and works perfect in there and is shielded from the lilli

    Michael

  10. #20
    Newbie iamag35man's Avatar
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    I wonder if getting a 12" x 12" piece of sheet metal and placing the gps receiver in the middle of it would help. Would it work better on the rear deck? I though my problems were due to window tint.
    Xenarc 700TSV ■ Holux USB GPS ■ Creative USB Sound Card
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