Re: Why is OFDM_loopback slow with Random Source

2022-03-27 Thread Cinaed Simson
On 3/23/22 13:10, Taylor Clark wrote: Good evening, I have been doing some work with packet modulation and I ran across the OFDM_Loopback.grc file. I initially did some test with my ZMQ Server and the data rate was terrible. Thinking it was my datasource, I did some other test until I

Re: GNURadio 3.7.14.0 Building gr-video-sdl

2022-03-27 Thread Mitja kocjančič
Hello there, thanks for trying to help My current GNURadio version is 3.7.14 and I got it as part of PothosSDR: https://downloads.myriadrf.org/builds/PothosSDR/PothosSDR-2020.12.28-vc14-x64.exe since this was installed as part of PothosSDR I didn't build it from source and I guess during compile

Re: Help on

2022-03-27 Thread Marcus D. Leech
On 2022-03-27 15:32, Marcus Müller wrote: Is 32k a supported sampling rate? Sounds two orders of magnitude too low. The lowest RTL supported sampling rate is 250K, and then there's a jump with no supported   rates until something like 900K. For a single WBFM channel, you need the 250K

Re: Help on

2022-03-27 Thread Marcus Müller
Is 32k a supported sampling rate? Sounds two orders of magnitude too low. 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

Re: Help on

2022-03-27 Thread Lorenzo Mainardi
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.

Re: GNURadio 3.7.14.0 Building gr-video-sdl

2022-03-27 Thread Marcus Müller
Hi Mitja, there's more going on here, gr-video-sdl has been part of GNU Radio for a long, long time. Since at least GNU Radio 3.3, in fact; some 15, 16 years. So, your version of 3.7 would definitely also include it, and you should not try to backport a more modern version to it. So, we

Re: Help on

2022-03-27 Thread Fabian Schwartau
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

Help on

2022-03-27 Thread 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

GNURadio 3.7.14.0 Building gr-video-sdl

2022-03-27 Thread Mitja kocjančič
Hello there, for few reasons I am still using GNURadio 3.7 which doesn't come buindled with gr-video-sdl (at least the installation I am using doesn't) (I know 3.9 comes with it but right now I have some legacy blocks that are not uvailable for 3.9 so I am stuck using 3.7) So I tried building