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  1. #31
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    Default Re: 5800 GPS antenna mod

    Quote Originally Posted by DJNJ
    As you can see, you guys are attaching a wire to the GSM antenna.
    The GPS antenna is located inside the chasis. Attaching a wire to the GSM Antenna does not make a difference in GPS.
    Not at all, pls have a look at the manual of the 5800, page 23 (attached image). I guess the I0020-24 module contains WLAN-, GPS- and GSM-antenna...

    We do connect to the GPS antenna my dear. And no, it's not a hoax, as I was getting a lot of "GPS can't be used indoors" messages and since the wire is attached, not anymore....



  2. #32
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    Default Re: 5800 GPS antenna mod

    Quote Originally Posted by DJNJ
    I did this mod, and didn't see any difference.
    Tell us more: GPS in 5800 withouth A-GPS is functioning perfectly as it's stated in the manual. Reception under certain circumstances (like in-house, city-streets, dense forests) is weak and mostly quit with an error/excuse-message from Nokia. Under perfect clear sky it is not very accurate.

    The improvement of this thread is about
    - still having signal in 'bad' circumstances
    - increased accuracy under a clear sky


    Quote Originally Posted by DJNJ
    The GPS antenna is located inside the chasis.
    Well, if you want good reception, would you build an antenna inside the chassis, with plenty of electronics around/above

    Antennas are built outside to have better reception, between the antennas an the outside world is only the cover.
    This applies to GSM-, WLAN- and GPS-antenna of the 5800 :-)




  3. #33
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    Default Re: 5800 GPS antenna mod

    Quote Originally Posted by radelrama
    Tell us more: GPS in 5800 withouth A-GPS is functioning perfectly as it's stated in the manual. Reception under certain circumstances (like in-house, city-streets, dense forests) is weak and mostly quit with an error/excuse-message from Nokia. Under perfect clear sky it is not very accurate.

    The improvement of this thread is about
    - still having signal in 'bad' circumstances
    - increased accuracy under a clear sky

    Well, if you want good reception, would you build an antenna inside the chassis, with plenty of electronics around/above

    Antennas are built outside to have better reception, between the antennas an the outside world is only the cover.
    This applies to GSM-, WLAN- and GPS-antenna of the 5800 :-)
    You got a point there mate !
    Thanks , I will revise this once again.
    Will post back results !


  4. #34
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    Default Re: 5800 GPS antenna mod

    It works!

    Just finished modding my 5800. I used wire from SATA cables (not copper) as it was the best option I had here at work lol.
    Everything looks fine, faster hooking aswell as force/quantity of satellites.
    No GSM signal lost.

    For the ones that don't have warranty already and know what they're doing it would be better soldering the wire.

    If for you it's not working check the wire for bad contact, bend the wire tighter (at connection point), make the connection again, try different wire...

  5. #35
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    Default Re: 5800 GPS antenna mod

    Hey radelrama,

    u used insulated (non copper). U think it makes a difference if you take the unsulation off?

    Good post by the way.

  6. #36
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    Default Re: 5800 GPS antenna mod

    Quote Originally Posted by kranker
    Hey radelrama,

    u used insulated (non copper). U think it makes a difference if you take the unsulation off?

    Good post by the way.
    heya,

    I'm not an expert, but from what I've read:
    * copper best material for antenna
    * wire is better than strand

    And as an educated guess:
    * insulation plastic doesn't disturb (signal goes through plastic case too..)
    * leave insulation also to prevent metal touching phone-metal somewhere

    But if with your solution you have a signal gain already, just leave it and enjoy... :-)


  7. #37
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    Default Re: 5800 GPS antenna mod

    u guys are awesome in posting your experince in doing any thing i think im gonna mod my tube pls give me detailed steps (video is good)
    thanks peace out from egypt
    sorry for bad english

  8. #38
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    Default Re: 5800 GPS antenna mod

    Hi guys!

    I have made the antenna mod to my 5800 as the tutorial says:

    I don't have any gsm signal loss
    The gps signal is realy stronger.

    I used a piece of wire from an ethernet cable it's about 8,5 cm long
    it's made out of copper.
    I don't have any reason to complain.
    Thanks for the mod

    cheers.

  9. #39

    Default Re: 5800 GPS antenna mod

    After few hours of experimenting, results are sporadic...
    only integrated GPS enabled

    Test 1
    Static position of phone(laying near the window)
    Number of sats
    before: 5 (time to lock 2min)
    after: 9 (looks like noise to me, from bad connection to the wire, time to lock = 4 minutes, and time to time(30min test) gps signal lost)

    BUT:

    Number of sats with more than 50% of signal
    before: 3
    after: 1


    Test 2
    Moving/holding phone at hand(near the window)
    Number of sats
    before: 4 (time to lock = never)
    after: 7-10 (time to lock = never)

    Number of sats with more than 50% of signal
    before: 1
    after: 0

    Outdoor
    Not tested yet, but i guess, that in car(lot of shake) or at bike, it will have lot of "gps signal lost"

    For now, little bit disappointment

  10. #40
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    Default Re: 5800 GPS antenna mod

    yes.. not really worth the work


 
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