[USRP-users] Problems receiving valid data from a multi_usrp

Hello everyone,I’m an electrical engineering master-degree student from Münster, Germany. We have some Ettus devices round here at FH Münster, that were only used with GNU Radio until now, but for a bigger project I now try to use the UHD C++ API for the first time to build a custom (and hopefully

Re: [USRP-users] Problems receiving valid data from a multi_usrp

atencies. > > Regards, > Derek > > On Wed, Aug 9, 2017 at 8:08 AM, Janos Buttgereit via USRP-users > mailto:usrp-users@lists.ettus.com>> wrote: > Hello everyone, > > I’m an electrical engineering master-degree student from Münster, Germany. We > have some Ettus

Re: [USRP-users] Problems receiving valid data from a multi_usrp

also just set the times asynchronously and the large window (67936 >> packets in your case) is meant to be wide and catch the coarsely aligned >> samples. This will result in the four streams pretending to be synchronized, >> but keep in mind that the actual time offsets betwee

[USRP-users] Still having problems receiving multiple channels

Hello everybody, I wrote to the mailing list some month ago as I had problems setting up a multi_usrp from four USRP N210 with the help of the C++ API. As there are other projects with higher priority, I’m just working on the USRP-based stuff from time to time, that explains why there is a prob

Re: [USRP-users] Still having problems receiving multiple channels

you using? Can you include the console output of your > program when it runs? It looks like you have useful log messages. > > Thanks, > Derek > > On Tue, Oct 17, 2017 at 11:32 AM, Janos Buttgereit via USRP-users > mailto:usrp-users@lists.ettus.com>> wrote: > Hell

Re: [USRP-users] Still having problems receiving multiple channels

> > > I think you are only setting the frequency on channel 0... > > > > Check the API, but I think set_rx_freq takes a channel number... I think > this is your main problem... > > > > You also may want to coherently tune the rx freq across daugh

[USRP-users] Getting the daughterboard installed in a connected USRP through the C++ API

Hi, for my current project, I’d like to build up a nice GUI leading the user step by step to set up a connection to a usrp that should work with all setups possible. For this, it would be great to get some information about what daughterboards are installed into each motherboard slot of a multi

[USRP-users] Switching the antenna ports at runtime

Hi, While developing a X300/WBX based DOA application that should run stable for some longer time, we found out that there is the need to periodically re-synchronize the signals most likely due to slightly drifting pll output-frequencies across all independent frontends (this is phase drift no

[USRP-users] Accessing the device tree through the UHD C API

Hello everybody, here at FH Münster University of Applied Sciences we are successfully using the UHD C++ API for SDR projects that require high performance. Now I’m about to write our own SDR interface framework that allows us a more modular approach, e.g. an abstract SDR Interface class with a

[USRP-users] N310 as Target for a custom application with OpenCL

Hello Ettus Experts, we have a Linux-based SDR application up and running that currently uses X300 USRPs as Interfaces, does some sample processing on the realtime data stream and then does some further OpenCL-based processing on those results. Now we are consider buying a N310 for this applic

[USRP-users] Which bandwidth does uhd::usrp::multi_usrp::set_rx_bandwidth set?

Hi everyone, after having read https://kb.ettus.com/About_USRP_Bandwidths_and_Sampling_Rates I wonder what uhd::usrp::multi_usrp::set_rx_bandwidth does for setups with Daughterboards that have a fixed analog bandwidth? According to

[USRP-users] Problems getting started with N310 (Could not find MAC address for IP address 192.168.20.1)

Hi, I’m about to port an application that was working with a setup of two X300 devices to a new N310 device. For a first step the N310 should simply be used to stream four RF channels to a host. However before using it for streaming I wanted to perform some simple operations like getting the d

[USRP-users] UHD logging: Are errors not handled through std::clog the same way as infos are? Or: How to implement a custom logging facility when restricted to the UHD C API?

Hi, I’m using the UHD C API from within a C++ application. The reason for that is that UHD is optionally loaded as dynamic library at runtime through dlopen in case the user wants to use an ettus device and has the uhd library installed and therefore I’m limited to only use functions declared a

Re: [USRP-users] Problems getting started with N310 (Could not find MAC address for IP address 192.168.20.1)

having zero python knowledge and not much in-depth networking knowledge I can’t really figure out what could be the source of the error. So, any pointers are greatly appreciated! Thanks again Janos > Am 01.03.2019 um 13:15 schrieb Janos Buttgereit via USRP-users > : > > Hi, >

Re: [USRP-users] Problems getting started with N310 (Could not find MAC address for IP address 192.168.20.1)

ers > : > > On 03/15/2019 06:49 AM, Janos Buttgereit via USRP-users wrote: >> Hi Ettus Users, >> >> I wanted to friendly bump up this topic again. It’s really blocking me from >> working with the N310 if this error persists. I’m a bit lost with finding >> out why

[USRP-users] N310: Channel pairs are drifting in phase whith external LO setup

Hi, after having struggled a lot with network config issues I finally got out N310 up and running. We chosed it for an application that needs perfectly constant phases between all four channels to build up DOA estimation applications. I’ve set up an N210 as a signal source, outputting a sine ro

Re: [USRP-users] N310: Channel pairs are drifting in phase whith external LO setup

involve an additional reference signal source? > Am 22.03.2019 um 14:17 schrieb Marcus D. Leech via USRP-users > : > > On 03/22/2019 05:31 AM, Janos Buttgereit via USRP-users wrote: >> Hi, >> >> after having struggled a lot with network config issues I finally got o

Re: [USRP-users] API for N310

Hi, phase synchronous operation of the N310 should not really be a matter of the API you choose but a matter of your configuration (which you can achieve with all the APIs available). If you look at the posts I made to the mailing list in the last few days, you will find some information regard