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Thread: USB FM RDS Solution with sofware

  1. #321
    Maximum Bitrate NiSlo's Avatar
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    It worked in the computer in the house and I got a few stations, but as soon as it went into the car I got nothing at all. I tried soldering the new connection to plug the car antenna in properly as others have done in this thread but I still got nothing.

    All I could get in the car no matter what I tried was static
    I installed my carpc into my pet Kangaroo, mate.

  2. #322
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    Quote Originally Posted by NiSlo View Post
    It worked in the computer in the house and I got a few stations, but as soon as it went into the car I got nothing at all. I tried soldering the new connection to plug the car antenna in properly as others have done in this thread but I still got nothing.

    All I could get in the car no matter what I tried was static
    Hmmm. I guess im gonna have to grab my gf's laptop and do some experimenting then.... this sucks, now i might have to wait for the mp3car HD radio to come out.......

  3. #323
    Maximum Bitrate NiSlo's Avatar
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    Now that I know the antanna in the subie is powered, I might have another look. The amplifier might be changing the resistance of the antenna which the silabs doesn't like. I beleive the silabs is epexcting an antenna with 50 or 75ohm resistance. I cant remember which one at the moment.
    I installed my carpc into my pet Kangaroo, mate.

  4. #324
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    Quote Originally Posted by NiSlo View Post
    Now that I know the antanna in the subie is powered, I might have another look. The amplifier might be changing the resistance of the antenna which the silabs doesn't like. I beleive the silabs is epexcting an antenna with 50 or 75ohm resistance. I cant remember which one at the moment.
    Did you try the capacitor? I'm not sure what happens without it, i really need to look into how powered antenna's actually work, i dont have any experience with them. google here i come.

  5. #325
    Maximum Bitrate NiSlo's Avatar
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    No I haven't it with a capacitor. I though that was only to prevent a 12v surge hitting the silabs, not to improve reception. For $1 part, it's worth a go I guess
    I installed my carpc into my pet Kangaroo, mate.

  6. #326
    Raw Wave rando's Avatar
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    Per the schematic, there is already a DC filter at C1 (100pf) with D2 shunting transients.

    Like a few of the others here, I was never able to achieve stable reception with the vehicle in motion. If anyone in SoCal has one of these devices integrated and working well (while driving), I'd love to see/hear it the next carpc meet up.

  7. #327
    Variable Bitrate 84RegalRider's Avatar
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    Mine works pretty well while driving, only problem i have with it is the lag
    Core duo
    1tb harddrive
    256 ddr
    8 lilliput
    bu-353

    still installing...

  8. #328
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    Quote Originally Posted by rando View Post
    Per the schematic, there is already a DC filter at C1 (100pf) with D2 shunting transients.

    Like a few of the others here, I was never able to achieve stable reception with the vehicle in motion. If anyone in SoCal has one of these devices integrated and working well (while driving), I'd love to see/hear it the next carpc meet up.
    very true... but why are there two leads labeled antenna??

  9. #329
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    pic?

  10. #330
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    Quote Originally Posted by SmoL View Post
    pic?
    im referring to the schematic on silab's site.

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