Hello everyone, I am trying to make a cheap USB dongle working with gnuradio and gnuradio-companion. I just tried to use a source block and link to a waterfall sink. This is the error that I got:
<<< Welcome to GNU Radio Companion 3.10.1.1 >>> Block paths: /usr/share/gnuradio/grc/blocks Loading: "/home/lorenzo/Scaricati/fm_demod_mono.grc" >>> Converting from XML >>> Done Generating: '/home/lorenzo/Scaricati/top_block.py' Executing: /usr/bin/python3 -u /home/lorenzo/Scaricati/top_block.py gr-osmosdr 0.2.0.0 (0.2.0) gnuradio 3.10.0.0 built-in source types: file fcd rtl rtl_tcp uhd hackrf bladerf rfspace airspy airspyhf soapy redpitaya freesrp Using device #0 Realtek RTL2838UHIDIR SN: 00000001 Found Rafael Micro R820T tuner [R82XX] PLL not locked! [R82XX] PLL not locked! >>> Done (return code -11) What does this mean? How can solve this problem? The dongle is working fine with SDRSharp or rtl_fm. Thank you -- LORENZO MAINARDI