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Thread: Internal PCI-e wireless card, two leads?

  1. #1
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    Internal PCI-e wireless card, two leads?

    I'm trying to figure out what these two leads are for on this internal wifi card that I have.

    WLL4070-D50

    The chip is an Atheros AR5006X

    Anyone have any insight? One lead is black, the other gray. They both have very small circuit boards on the end of them. It's obvious that these are the antennas, but I'm wondering why there are 2?

    Any tips/tricks to boost the signal?
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  2. #2
    Constant Bitrate kibble's Avatar
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    On notebooks/laptops there are usually two antennas mounted in separate places, I guess for overall best pickup/transmission of signals. The "circuit boards" at the ends are the actual antennas and have a particular foil pattern for the frequencies they're transmitting/receiving.

    I don't really know of any way to boost them, but then again I haven't really looked into it.

  3. #3
    Maximum Bitrate BarryWoods's Avatar
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    It's called antenna diversity. No way to really "boost" the antennas you have, but you can get a couple pigtails and mount bigger antennas. For diversity to work correctly, they should be about 5.5" to 5.75" apart. You can also just unplug the second antenna and just use the main with a bigger antenna.


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  4. #4
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    Sweet! Thanks for that info. Makes perfect sense.

    It's just a laptop that I killed. It was old and I didn't use it much any more so I figured I would take it apart and see what I could use out of it. Basically, I was dumb and plugged a 12v power supply into an external CD-Rom that only needed 5v. It shorted out the board via the USB port and then the laptop wouldn't even turn on.

    Like a fingerprint reader....though, I'm afraid I don't know how to wire that thing up since it was a propritary cable for it.

    Regarding the distance between the two antennas, if they are further, will it matter? I'm going to try and figure out a way to mount them outside of the metal case, but then I'd worry about protecting them.
    Jan Bennett
    FS: VW MKIV Bezel for 8" Lilliput - 95% Finished

    Please post on the forums! Chances are, someone else has or will have the same questions as you!

  5. #5
    Maximum Bitrate BarryWoods's Avatar
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    Quote Originally Posted by RedGTiVR6 View Post
    Sweet! Thanks for that info. Makes perfect sense.

    It's just a laptop that I killed. It was old and I didn't use it much any more so I figured I would take it apart and see what I could use out of it. Basically, I was dumb and plugged a 12v power supply into an external CD-Rom that only needed 5v. It shorted out the board via the USB port and then the laptop wouldn't even turn on.

    Like a fingerprint reader....though, I'm afraid I don't know how to wire that thing up since it was a propritary cable for it.

    Regarding the distance between the two antennas, if they are further, will it matter? I'm going to try and figure out a way to mount them outside of the metal case, but then I'd worry about protecting them.

    Yea, it will matter, it won't work as well. It's based on the wavelength of wifi radio frequency. For 802.11b+g it's between 4.75" and 4.89" from channel 14 to 1. Here in the US we can't use channels 12, 13, or 14. That chunk is given to medical equipment and stuff like that. I've used 4.75" center to center with no problems, from what I've been told, anything in that range should be good enough.
    Failure is not an option....



    It's installed by default on every version of Windows.

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