Dx Patrol Setup

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

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

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Hello.

Yes, tnx. I have a procedure that removes the rt2832 and related drivers
before starting grc.

The problem is that the source gr-osmosdr is able to connect the board
however the R820T’s PLL is not working.

Marco

Il 28. 06. 15 15:50, Tom McDermott ha scritto:

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
On Sat, Jun 27, 2015 at 4:12 PM, Marco <[email protected]
mailto:[email protected]> wrote:
Using device 0: Generic RTL2832U OEM
IR endpoint enabled: yes
[R82XX] PLL not locked!
Tnx

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