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Chat Beagle and software defined radio

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  • Aadityaa

    In the BBB,what is var1=0 or var4=1???

    March 10

  • Drew F.

    Software Defined Radio is an exciting technology and it was great to explore the possibilities when applied to the BeagleBone with cheap DVB-T USB sticks. It was an unexpected amount of fun to hear the BBB tune and play a FM station! Nice to have some hams on hand, too. See y'all next week!

    February 20, 2014

  • Jason

    Martee, Jeff, Drew, Allen, Justin, David and everyone else, it was great seeing you all come out last night for the meet-up and I hope you got something out of it. Please let me know what I can do to make future meet-ups as enjoyable as we can.

    January 24, 2014

  • Drew F.

    1 · January 23, 2014

  • Jason

    Listening to audio via my Mac using BeagleBone connected to tuner. 'sox' installed on my Mac for the 'play' app. 'rtl_fm' :
    ssh root@[masked] "nice -n -10 rtl_fm -W -f 96.3M" | play -r 32k -t raw -e signed-integer -b 16 -c 1 -V1 --buffer[masked] -

    January 23, 2014

    • Jason

      'rtl_fm' comes from installing librtlsdr.

      January 23, 2014

  • Jason

    I'm planning on putting together a small demo of using a DVB-T tuner to analyze radio spectrums. I'm not a software radio expert in *any* way, but I know Drew has duplicated this and I expect to be able to duplicate it for our meeting.

    Any thoughts on me buying a handful of these ahead of time for folks to take home like we did for the Nokia displays? Was that useful?

    http://ebrombaugh.studionebula.com/radio/bone-rtl/index.html
    http://www.oz9aec.net/index.php/beaglebone/480-rtlizer

    1 · January 13, 2014

    • Drew F.

      1 · January 13, 2014

    • Drew F.

      This linked to http://www.rtl-sdr.co...­ YouTube user Brad Bowers has posted a video showing GQRX running on his BeagleBone Black with an RTL-SDR dongle. The BeagleBone Black is an embedded Linux computer, similar to the Raspberry Pi, but with significantly more processing power. He found that GQRX actually performed quite responsively on the BeagleBone.

      1 · January 13, 2014

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