[USRP-users] Spectral flatness with USRP x310 and TwinRX

Hi all, We are making use of a USRP X310 with TwinRX daughterboard to capture data on 2 chains at the same time. For the intended use of the data it is important that the spectrum is very flat. Below is a screenshot of the 2 chains when fed with AWGN from a signal generator: https://imgur.co

Re: [USRP-users] GPIO ATR signals

Keith, If I'm understanding your question correctly, the answer is yes. ATR is set up to allow a GPIO pin to vary its state based on whether a channel of the radio is transmitting or receiving. You can set this per-pin and per-channel. You can also use GPIO without tying it to ATR at all. Here's a

Re: [USRP-users] UHD and FPGA Image mismatch error

Hi Bisma, You should download the FPGA images for your installed version of UHD (with uhd_images_downloader) and then write a new FPGA image to the E320 using the uhd_image_loader utility. UHD will work on Ubuntu 19.x. Regards, Nate Temple On Wed, Nov 6, 2019 at 2:38 AM Bisma Amjad via USRP-use

Re: [USRP-users] Problems running uhd/examples/tx_samples_from_files on E310

Hi Z. Cao, What version of UHD are you running on your old E310? Generally the max sample rate supported by the ARM is ~10 MS/s. With regards to the sample rate error you saw when trying to run at 40 MS/s, try adding the device args: "master_clock_rate=40e6". >Does RFNoC included in the default

Re: [USRP-users] x300 systematic error

Hi Lorenzo, What version of UHD are you using? Can you share your C++ app (either by emailing the mailing list or by emailing it to supp...@ettus.com)? Regards, Nate Temple On Wed, Nov 6, 2019 at 1:41 PM Minutolo, Lorenzo via USRP-users < usrp-users@lists.ettus.com> wrote: > Hi All, > My C++ a

Re: [USRP-users] Custom OOT C++ on USRP

Hi Michael, Please see this app note which covers cross compiling UHD/GR/gr-ettus. You can treat your OOT the same as gr-ettus. https://kb.ettus.com/Software_Development_on_the_E3xx_USRP_-_Building_RFNoC_UHD_/_GNU_Radio_/_gr-ettus_from_Source#SDK_Setup https://kb.ettus.com/Software_Development_

Re: [USRP-users] x300 systematic error

On 12/02/2019 05:57 PM, Ettus Research Support via USRP-users wrote: Hi Lorenzo, What version of UHD are you using? Can you share your C++ app (either by emailing the mailing list or by emailing it to supp...@ettus.com )? Regards, Nate Temple My guess is that *someb

Re: [USRP-users] UHD and FPGA Image mismatch error

Hi Nate, Thanks for your response. I too followed the aforementioned steps and it worked. Thanks. Regards Bisma On Tuesday, December 3, 2019, Nate Temple wrote: > Hi Bisma, > > You should download the FPGA images for your installed version of UHD > (with uhd_images_downloader) and then