28 Oct
2018
28 Oct
'18
4:26 p.m.
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.
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29 Oct
29 Oct
10:29 p.m.
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
31 Oct
31 Oct
2:05 a.m.
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(a)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
2539
days inactive
2542
days old
2 comments
3 participants
participants (3)
-
Geof Nieboer -
MB -
Steve Markgraf