GQRX, "no supported devices"

Projects LimeSDR
1

Anyone have a suggestion on how to get LimeSDR supported?

axeman@TOOL3:~/git/gqrx/build$ gqrx
linux; GNU C++ version 4.9.2; Boost_105500; UHD_003.009.005-0-unknown

Controlport disabled
No user supplied config file. Using “default.conf”
gr-osmosdr 0.1.4 (0.1.4) gnuradio 3.7.10
built-in source types: file osmosdr fcd rtl rtl_tcp uhd miri hackrf bladerf rfspace airspy redpitaya
FM demod gain: 1.52789
IQ DCR alpha: 1.04166e-05
Using audio backend: auto
BookmarksFile is /home/axeman/.config/gqrx/bookmarks.csv
getDeviceList : Available input devices:
0 : “RFSPACE SDR-IQ Receiver”
1 : “RFSPACE SDR-IP Receiver”
2 : “RFSPACE NetSDR Receiver”
3 : “RFSPACE Cloud-IQ Receiver”
4 : “RTL-SDR Spectrum Server”
5 : “Red Pitaya Transceiver Server”
6 : “Complex Sampled (IQ) File”
Loading configuration from: “default.conf”
Configuration file: “/home/axeman/.config/gqrx/default.conf”
gr-osmosdr 0.1.4 (0.1.4) gnuradio 3.7.10
built-in source types: file osmosdr fcd rtl rtl_tcp uhd miri hackrf bladerf rfspace airspy redpitaya

FATAL: No supported devices found to pick from.

Trying to fill up 1 missing channel(s) with null source(s).
This is being done to prevent the application from crashing
due to gnuradio bug #528.

No change in output device:
old:
new:

Failed to set RX input rate to 1e+06
Your device may not be working properly.

IQ DCR samp_rate: 1e+06
IQ DCR alpha: 9.99999e-07
Changing NB_RX quad rate: 96000 → 1e+06
Requested sample rate: 1000000
Actual sample rate : “1000000.000000”
New FFT rate: 25 Hz
Requested bandwidth: 1000000 Hz
Actual bandwidth : 0 Hz
setFreqCorr : 0 ppm
New LNB LO: 0 Hz
updateHWFrequencyRange failed fetching new hardware frequency range
New mode index: 0
Filter preset for mode 0 LO: 0 HI: 0
setFftRate to “25 fps”

I use ‘other’ and 'driver=lime,soapy=0".

2

You need to have gr-osmosdr built with SoapySDR support, i.e. install SoapySDR before compiling gr-osmosdr.

1 Like
3

I thought it was something like that. This gqrx is from the repository and I was hoping I could just add the dependency somehow. Maybe just build my own gr-osmosdr?

4

Yes, if the gr-osmosdr you have installed now does not have SoapySDR support, you will have to install it yourself. Just be careful not to have both of the installed.

5

New lib gets built as libgnuradio-osmosdr.so.0.1.5git, ldd /usr/bin/gqrx shows it wants 0.1.4. I will first just try to symlink to the new lib. Otherwise I have to build the old one. I got debian just to avoid all of this, but that is the problem with repository based systems.

6

Well, it doesn’t segfault and it shows ‘soapy’ now. I will have to wait until I get home to try the radio.

7

It works now. Thanks. Now for URH.