Re: [USRP-users] USRP E313

2018-06-11 Thread Ivan Zahartchuk via USRP-users
Sorry, but I do not quite understand what you mean? 2018-06-11 16:56 GMT+03:00 Matheou, Konstantin J. (GRC-LCI0)[ZIN TECHNOLOGIES INC] : > I am currently having the same issue with the E310…. But I think you > should be using usrp3 directory… > > > > *From:* USRP-users [mailto:usrp-users-boun..

Re: [USRP-users] GNU radio receiving file, X310

2018-06-11 Thread Michael West via USRP-users
Hi Nives, It is difficult to help without more information. If you share the flowgraph and console output, people on the list might be able to help more. Regards, Michael On Mon, Jun 11, 2018 at 1:01 AM, Nives Novković via USRP-users < usrp-users@lists.ettus.com> wrote: > Hi everyone, > > I am

Re: [USRP-users] Synchronization of two X310 using C

2018-06-11 Thread Michael West via USRP-users
Hello Eino, Even if you are successful getting one device to use the references of the other, it is probably not what you want to do. There are propagation delays on the 10 MHz and PPS signals that mean that the devices are not truly synchronized. The proper way to synchronize the devices is to

Re: [USRP-users] Spectrum analyzer not picking up any signal from USRP-GNU Radio

2018-06-11 Thread Ayaz Mahmud via USRP-users
Dear Derek, Really appreciate your help to sort out the issue and making me understand step by step procedure which has solved the problem. I can now get the intended frequency in my spectrum analyzer of the OFDM transmitter. Thanks, Ayaz From: Derek Kozel Sen

Re: [USRP-users] vita time

2018-06-11 Thread Michael West via USRP-users
Hi Koen, The way to achieve what you want is to set the device time and then have your signal generator put timestamps in each packet relative to that time. To tell your custom block what time to use, you can have a user register that you also program with the time (or some future start time). Re

Re: [USRP-users] Spectrum analyzer not picking up any signal from USRP-GNU Radio

2018-06-11 Thread Derek Kozel via USRP-users
Hello Ayaz, UHD will log to standard out by default. You should be seeing it in the console section of the GNU Radio Companion, at the bottom. Multiplying by 500 will almost certainly lead to the signal clipping at the DAC, completely corrupting your signal. The USRP Sink block expects values bet

Re: [USRP-users] Spectrum analyzer not picking up any signal from USRP-GNU Radio

2018-06-11 Thread Ayaz Mahmud via USRP-users
Hi Derek, Thanks for pointing, I initially thought as the throttle was connected to WX GUI FFT it won’t affect the USRP sink. But the issue does not get resolves even after the throttle is removed. I tried increasing the gain to 30 and adding a multiply constant of 500 after the OFDM Mod block

Re: [USRP-users] Spectrum analyzer not picking up any signal from USRP-GNU Radio

2018-06-11 Thread Ayaz Mahmud via USRP-users
Hi Derek, Thanks for pointing, I initially thought as the throttle was connected to WX GUI FFT it won’t affect the USRP sink. But the issue does not get resolves even after the throttle is removed. I tried increasing the gain to 30 and adding a multiply constant of 500 after the OFDM Mod block

[USRP-users] GR-UHD Compatibility Issue

2018-06-11 Thread Luis Felipe Albarracin Sanchez via USRP-users
Hello all, I am having an Issue when trying to test a model with a USRP B210, i have instaled GNURadio, via: *$ apt install gnuradio* then i tried to connect mi USRP to the model, but the followig error comes out: *RuntimeError: GR-UHD detected ABI compatibility mismatch with UHD library.

Re: [USRP-users] Spectrum analyzer not picking up any signal from USRP-GNU Radio

2018-06-11 Thread Derek Kozel via USRP-users
Hello Ayaz, Because you have hardware in your flowgraph (the B210) you should not include a throttle block. Check your log output, it is very likely that UHD is reporting underflows. I'd recommend quickly running through the GNU Radio tutorial on using hardware. https://wiki.gnuradio.org/index.php

Re: [USRP-users] Synchronization of two X310 using C

2018-06-11 Thread Eino Virtanen via USRP-users
Hello again, Sorry for the multiple messages. I nailed down the problem to the 'set_clock_source("external", 1)'. For some reason the other X310 can't get the reference signal from the other one. I will continue investigating. If someone has faced a similar problem, please tell me about it. -- B

Re: [USRP-users] USRP E313

2018-06-11 Thread Ivan Zahartchuk via USRP-users
Hello. I had a problem with installing and configuring RFNoc for the E313 board. When I execute the uhd_images_downloader command on the board, it gives me the address to download the rfnoc archive, but it produces the following: [INFO] Images destination: / usr / local / share / uhd / images [INFO

[USRP-users] Synchronization of two X310 using C

2018-06-11 Thread Eino Virtanen via USRP-users
Dear recipents, I am trying to synchronize the clocks of two X310s using C. I have the following code: --- s->usrp->set_clock_source("internal", 0); s->usrp->set_time_source("internal", 0); s->usrp->set_clock_source("external", 1); s->usrp->set_time_source("external", 1); s->usrp->set_time_next

[USRP-users] GNU radio receiving file, X310

2018-06-11 Thread Nives Novković via USRP-users
Hi everyone, I am starting to familiarize myself with GNU radio and RFNoC. First thing I tried is simply to send a file to X310 using GNU radio and receive it back unchanged. For that I used blocks - File Source, Throttle, RFNoC: FIFO and File Sink. But no matter what size the file I send, I alway