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  1. #1
    Join Date
    Aug 2008
    Location
    SanDiego, People's Republic of California FEMA District 9
    Posts
    35,594

    Default For The SDR Fans

    I saw this over at Hack A Day and thought I would pass it along.

    Software defined radio from a USB TV capture card

    posted Mar 20th 2012 11:01am by Brian Benchoff
    filed under: peripherals hacks, radio hacks

    With a simple digital TV USB capture card, you can build your own software defined radio or spectrum analyzer. While it may not be as cool as [Jeri Ellsworth]s SDR, its still very useful and only requires $20 in hardware.
    The only piece of hardware required for this build is a USB FM/DTV capture device with the Realtek RTL2832U chipset. So far, two USB sticks have been tested and the unit with the largest frequency range (64 1700 MHz) is available direct from China for $20.
    Turning these cheap capture cards into software defined radios and spectrum analyzers was discovered by [Antti Palosaari] after sniffing the device. These cards demodulate the frequency and send all the data to the computer and is decoded via software. If you have one of these capture cards lying around, you can grab the software and load it up on your *nix box. Right now, the software only writes directly to a file, and may drop a few samples if writing to a hard disk instead of ram. Small problems, but were sure this project will pick up steam in the very near future.
    via reddit
    ------------------------------------------------------------------------------
    This looks kind of cool....
    "I would rather be free than rich."
    Dick Gregory

  2. #2
    W4AFB Guest

    Default

    Very cool.

  3. #3
    Join Date
    Apr 2003
    Location
    MI
    Posts
    6,178

    Default

    Looks a lot like the FunCube receiver.


    Cortland
    KA5S

  4. #4

    Question Chime in!

    I just bought one of these for $14.12 with free shipping.
    http://www.dealextreme.com/p/dvb-t-d...h-remote-28891

    This looks like it has potential. Who else is going to play with this?

  5. #5
    Join Date
    Mar 2011
    Location
    Waynesboro VA, US
    Posts
    994

    Default

    Hmmm.. I may have to dig through the junk box for that Hauppauge ATSC dongle that I retired from service. Good find, Sue. Thanks for sharing!
    [SIZE=1][B]"An armed society is a polite society. Manners are good when one may have to back up his acts with his life." - Robert A Heinlein[/B][/SIZE]

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