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From: | Marcus D. Leech |
Subject: | Re: Help on |
Date: | Sun, 27 Mar 2022 15:37:04 -0400 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.5.0 |
On 2022-03-27 15:32, Marcus Müller wrote:
The lowest RTL supported sampling rate is 250K, and then there's a jump with no supportedIs 32k a supported sampling rate? Sounds two orders of magnitude too low.
rates until something like 900K. For a single WBFM channel, you need the 250K sampling rate. The -11 error return is "LIBUSB_NO_MEM" coming from the within LIBUSB. Not sure how to fix that, since I've never actually received that error.
On 27.03.22 21:22, Lorenzo Mainardi wrote:The error about PLL should be just "cosmetic" and not have any impact. Anyway, I think I setup correctly both the correct frequency (I would like to test the broadband FM, so 100e6) both the sampling frequency (32k). The real issue is the "Return code -11" error, I cannot find anything about that. Il giorno dom 27 mar 2022 alle ore 18:52 Fabian Schwartau <fabian@opencode.eu> ha scritto:Hi, did you set the correct frequency? If it is outside the allowed range, it is expected that the PLL cannot lock. Best, Fabian Am 27.03.22 um 18:46 schrieb Lorenzo Mainardi: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 DoneGenerating: '/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
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