Some applications (e.g. DVB) automatically acquire the RTL at
boot, preventing Gnuradio from opening it.

sudo rmmod dvb_usb_rtl28xxu rtl2832

at the command line, each each boot, or

blacklist the device by creating a somefilename.conf file in /etc/modprobe.d
(may depend on Linux distribution) containing:

  blacklist dvb_usb_rtl28xxu
  blacklist rtl2832
  blacklist rtl2830

-- Tom, N5EG



On Sat, Jun 27, 2015 at 4:12 PM, Marco <[email protected]> wrote:

> Hello.
>
> I have been buying today a DX Patrol SDR board. Works on Android,
> however I'm getting some troubles with GRC.
>
> #rtl_eeprom
> Found 1 device(s):
>   0:  Generic RTL2832U OEM
>
> Using device 0: Generic RTL2832U OEM
> Found Rafael Micro R820T tuner
>
> Current configuration:
> __________________________________________
> Vendor ID:              0x0bda
> Product ID:             0x2838
> Manufacturer:           Realtek
> Product:                RTL2838UHIDIR
> Serial number:          00000001
> Serial number enabled:  yes
> IR endpoint enabled:    yes
> Remote wakeup enabled:  no
>
>
> GRC console:
>
> Using Volk machine: sse4_2_64_orc
> gr-osmosdr v0.1.4-31-gb3fdf5b8 (0.1.5git) gnuradio 3.7.5
> built-in source types: file fcd rtl rtl_tcp rfspace
> Using device #0 Realtek RTL2838UHIDIR SN: 00000001
> Found Rafael Micro R820T tuner
> [R82XX] PLL not locked!
> Exact sample rate is: 2000000,052982 Hz
> [R82XX] PLL not locked!
> INFO: Audio sink arch: alsa
> len(audio_taps) = 2409
>
> A Terratec board with an Elonic s E400 tuner is working without any
> major problem at the test frequency (98.6 M).
>
> May I ask for help?
>
> Tnx
>
>
> Marco
>
>
>
> _______________________________________________
> Discuss-gnuradio mailing list
> [email protected]
> https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
>
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