RTL_SDR dongle not being working with gnuradio
I have a rtl_sdr.com RTL2832U R820T2 dongle. It works with HDSDR and SDRSHARP programs. Using win10 64 BIT 10.0.17134.345 and GNURadio 3.7.13.4/V1.5Windows reports VID_0BDA, PID_2838 When I run GNUradio, I get [R82XX] PLL not locked! When I open the GNUradio command prompt and run rtl_test -t, I get this: setting gnuradio environmentMicrosoft Windows [Version 10.0.17134.345] (c) 2018 Microsoft Corporation. All rights reserved. C:\Program Files\GNURadio-3.7\bin>rtl_test -t Found 1 device(s): 0: Realtek, RTL2838UHIDIR, SN: 00000001 Using device 0: Generic RTL2832U OEM Found Rafael Micro R820T tuner Supported gain values (29): 0.0 0.9 1.4 2.7 3.7 7.7 8.7 12.5 14.4 15.7 16.6 19.7 20.7 22.9 25.4 28.0 29.7 32.8 33.8 36.4 37.2 38.6 40.2 42.1 43.4 43.9 44.5 48.0 49.6 Sampling at 2048000 S/s. No E4000 tuner found, aborting. C:\Program Files\GNURadio-3.7\bin> At this page, https://osmocom.org/projects/rtl-sdr/wiki/Rtl-sdr shows this table : VID PID tuner device name 0x0bda 0x2832 all of them Generic RTL2832U (e.g. hama nano) 0x0bda 0x2838 E4000 ezcap USB 2.0 DVB-T/DAB/FM dongle Is it possible RTL_TEST is looking for a E4000 because of it's dongle's screwy PID, even though it sees a R820T. If not, why is it not working?thanks. | | Virus-free. www.avast.com |
Hi, On 28.10.2018 16:26, MB wrote:
Is it possible RTL_TEST is looking for a E4000 because of it's dongle's screwy PID, even though it sees a R820T. If not, why is it not working? thanks.
» rtl_test -h rtl_test, a benchmark tool for RTL2832 based DVB-T receivers Usage: [-s samplerate (default: 2048000 Hz)] [-d device_index (default: 0)] [-t enable Elonics E4000 tuner benchmark] As you can see, -t only works with E4000 tuners, and is meant to determine the size of the L-Band gap this tuner has. The R820T2 you have doesn't have an L-Band gap, thus there is nothing to benchmark. Regards, Steve
Yes, can confirm Steve's comment, with -t that's the expected result. I also get the "PLL not locked!" error message on my RTL-SDR (different PID), but flowgraphs still work fine in GNURadio / Win10. On Mon, Oct 29, 2018 at 5:29 PM Steve Markgraf <steve@steve-m.de> wrote:
Hi,
On 28.10.2018 16:26, MB wrote:
Is it possible RTL_TEST is looking for a E4000 because of it's dongle's screwy PID, even though it sees a R820T. If not, why is it not working? thanks.
» rtl_test -h rtl_test, a benchmark tool for RTL2832 based DVB-T receivers
Usage: [-s samplerate (default: 2048000 Hz)] [-d device_index (default: 0)] [-t enable Elonics E4000 tuner benchmark]
As you can see, -t only works with E4000 tuners, and is meant to determine the size of the L-Band gap this tuner has. The R820T2 you have doesn't have an L-Band gap, thus there is nothing to benchmark.
Regards, Steve
participants (3)
-
Geof Nieboer -
MB -
Steve Markgraf