I haven't had time to further troubleshoot this problem, sorry. The stick I'm using is some random stick I picked up cheap on amazon from china.
rtl_test identifies as: Realtek, RTL2838UHIDIR, SN: 00000001 Using device 0: Generic RTL2832U OEM Found Rafael Micro R820T tuner lsusb identifies as: ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T I did find a premade image for doing RTL-SDR stuff on the BBB here, which sounds promising: http://www.kd0cq.com/2014/08/packed-full-beaglebone-black-img-file-rtl-sdr-gnuradio-gqrx-lots-more-on-ubuntu-14-04/ On Thu, Dec 4, 2014 at 6:59 AM, <[email protected]> wrote: > Hi Adam, > > I'm thinking of doing an RTL-SDR project with the BBB, as well. Sorry I > can't lend any advice, yet, since it's just concept stage for me right now. > I may have some insight in a week or two since a satcom project here in NYC > may be moving from using the RPi to the BBB. > > Have you had any further success with your BBB setup? Would you mind > telling me which stick you're using? > > Thanks much. > Charles > > > > On Tuesday, November 18, 2014 5:55:02 PM UTC-5, [email protected] wrote: >> >> I'm attempting to use a RTL-SDR stick on my BBB, but too many samples are >> being dropped to be stable. When running the test program rtl_test, a >> typical output is like this: >> >> Sampling at 2048000 S/s. >> Reporting PPM error measurement every 10 seconds... >> Press ^C after a few minutes. >> Reading samples in async mode... >> lost at least 68 bytes >> real sample rate: 2048506 current PPM: 248 cumulative PPM: 248 >> real sample rate: 1613474 current PPM: -212171 cumulative PPM: -108885 >> lost at least 33108 bytes >> [snip] >> lost at least 33820 bytes >> lost at least 568 bytes >> real sample rate: 2231729 current PPM: 89712 cumulative PPM: -42138 >> real sample rate: 2047938 current PPM: -30 cumulative PPM: -31448 >> >> A perhaps telling dmesg output occurs when I start the test program: >> >> sched: RT throttling activated >> >> The same stick has no problem on my laptop and a Raspberry Pi. I'm >> running debian jessie and I tested kernel kernel versions 3.8.13-bone67, >> 3.14.23-ti-r34, and 3.18.0-rc5-bone1 which all had the problem. Any >> thoughts? >> > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
