BNC output to laptop

Discussion in 'General Electronics Chat' started by frabiondi, Oct 31, 2013.

  1. frabiondi

    frabiondi Thread Starter New Member

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  2. MrChips

    MrChips Moderator Staff Member

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    What does the device with the BNC output do?
  3. MaxHeadRoom

    MaxHeadRoom Well-Known Member

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    I have used Hauppauge products before, nice quality, but that card will not fit your Laptop?
    Max.
  4. shteii01

    shteii01 Well-Known Member

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    Like Max said, that card is for desktop box, it is not for lappy.

    Also MrChips is very wise. The video capture cards are designed to receive video and audio signals. Are you trying to receive video and/or audio signal?
  5. Slarsen

    Slarsen New Member

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    The short answer is that the BNC to USB adapter you link to will work (though I'm a bit wary of it because it appears to be a generic model) and the Hauppauge card won't because it won't plug into a laptop. And it has the wrong king of connector.

    Here's the long answer:

    The output of your device is a BNC connector, which is often used in CCTV (closed circuit television) systems such as security cameras.

    The video signal from a CCTV camera is in a format called Composite Video. In this format there is no audio and it is at baseband, meaning that it isn't on an RF (radio frequency) carrier that can be transmitted wirelessly.

    So you want a digitizer that accepts a composite video signal that is connected via a BNC connector. (Though there are cables that covert between different connector types. For example, from BNC to RCA.)

    The next thing to consider is how the digital signal is input into your computer. If your computer is a desktop model then you could buy a video digitizer card that plugs into a PCI card slot. Or PCI Express.

    Or you can input the digital signal through a USB port. Of course, this will work with both desktop and laptop computers. Since yours is a laptop, you want the digitizer to output the signal though a USB port.

    And that is why your first choice, the BNC to USB digitizer, is the right choice.

    You will also have to install software (including a driver) for dealing with the video data. I see that the BNC to USB adapter does include a CD, and that will have the software on it.
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