Re: [USRP-users] different phase difference using splitter on each run

On 03/06/2019 12:06 AM, Koyel Das (Vehere) wrote: Okay so is it enough to use timed tuning to get constant phase difference each time? Assuming that all your streams are within the same multi_usrp object, coming from the same hardware device, yes, that should do it. Koyel Das Senior – Pr

Re: [USRP-users] different phase difference using splitter on each run

Okay so is it enough to use timed tuning to get constant phase difference each time? Koyel Das Senior – Product Engineer Vehere | Proactive Communications Intelligence & Cyber Defence M: +919051132173 | T: +91 33 40545454 | F: +91 33 40545455 | W: www.vehere.com [unnam

[USRP-users] link led colour

Hi, When I am receiving data using ethernet my link LED is orange most of the times and blinking to red for momentarily, which is not so noticeable. Am I receiving wrong data? It is not turning green. Regards, Koyel Koyel Das Senior – Product Engineer Vehere | Proactive Communications Int

Re: [USRP-users] different phase difference using splitter on each run

On 03/05/2019 11:40 PM, Koyel Das (Vehere) wrote: Hi, By tuning commands I understand you mean command of synchronization for frequency tuning? But then in which other places I have to use the timed commands like in gain, sample rate etc also do I have to use timed commands? If so what are

Re: [USRP-users] different phase difference using splitter on each run

Hi, By tuning commands I understand you mean command of synchronization for frequency tuning? But then in which other places I have to use the timed commands like in gain, sample rate etc also do I have to use timed commands? If so what are those commands? I am not getting a clear example of t

Re: [USRP-users] different phase difference using splitter on each run

On 03/05/2019 11:17 PM, Koyel Das (Vehere) wrote: So basically I have to insert the following line usrp->set_command_time(cmd_time); before the code where I need timed operations and then at the end of the code I insert usrp->clear_command_time(); ?? The tuning commands in particular

Re: [USRP-users] different phase difference using splitter on each run

So basically I have to insert the following line usrp->set_command_time(cmd_time); before the code where I need timed operations and then at the end of the code I insert usrp->clear_command_time(); ?? Koyel Das Senior - Product Engineer Vehere | Proactive Communications Intelligence & C

Re: [USRP-users] different phase difference using splitter on each run

On 03/05/2019 10:41 PM, Koyel Das (Vehere) wrote: The timed commands are as follows in rx_multisamples.cpp if(sync=="now"){ //This is not a true time lock, the devices will be off by a few RTT. //Rather, this is just to allow for demonstration of the code below. usrp

Re: [USRP-users] different phase difference using splitter on each run

The timed commands are as follows in rx_multisamples.cpp if(sync=="now"){ //This is not a true time lock, the devices will be off by a few RTT. //Rather, this is just to allow for demonstration of the code below. usrp->set_time_now(uhd::time_spec_t(0.0)); }

Re: [USRP-users] different phase difference using splitter on each run

On 03/05/2019 10:28 PM, Koyel Das (Vehere) wrote: "I'm not familiar with the 2964R, so can't personally comment on it." Sorry I meant 2954 R. Does it also have LO sharing or that is not required in that? Regards, That model is based on the UBX transceiver card, which doesn't have LO shar

Re: [USRP-users] different phase difference using splitter on each run

"I'm not familiar with the 2964R, so can't personally comment on it." Sorry I meant 2954 R. Does it also have LO sharing or that is not required in that? Regards, Koyel Das Senior – Product Engineer Vehere | Proactive Communications Intelligence & Cyber Defence M: +919051132173 | T: +91 33

Re: [USRP-users] different phase difference using splitter on each run

On 03/05/2019 11:21 AM, Koyel Das (Vehere) wrote: So they don’t share same master oscillator? Is this true for 2964R as well? Do you mean the reference clock on the board? They all share that, but each channel has its own LO synthesizer. I'm not familiar with the 2964R, so can't personally co

Re: [USRP-users] different phase difference using splitter on each run

So they don’t share same master oscillator? Is this true for 2964R as well? Koyel Das Senior – Product Engineer Vehere | Proactive Communications Intelligence & Cyber Defence M: +919051132173 | T: +91 33 40545454 | F: +91 33 40545455 | W: www.vehere.com Vehere is the proud recipient of the Fast

Re: [USRP-users] different phase difference using splitter on each run

On 03/05/2019 11:10 AM, Koyel Das (Vehere) wrote: Are RX1 and RX2 of RF0 controlled by same master oscillator? Will connecting two antennas to RX1 and RX2 of RF0, rather than to RX1 of RF0 and to RX1 of RF1, give same phase difference between these two channels at every run? All channels have

Re: [USRP-users] different phase difference using splitter on each run

Are RX1 and RX2 of RF0 controlled by same master oscillator? Will connecting two antennas to RX1 and RX2 of RF0, rather than to RX1 of RF0 and to RX1 of RF1, give same phase difference between these two channels at every run? Koyel Das Senior – Product Engineer Vehere | Proactive Communications

[USRP-users] Building UHD Python API for RHEL 7.6

Hi, I've been trying to build UHD 3.13.1.0 with the Python API on a machine running RHEL 7.6. Upon running cmake I see: -- Configuring LibUHD - Python API support... -- Dependency ENABLE_LIBUHD = ON -- Dependency BOOST_PYTHON_FOUND = ON -- Dependency HAVE_PYTHON_MODULE_NUMPY = TRUE -- Dep

Re: [USRP-users] different phase difference using splitter on each run

On 03/05/2019 06:01 AM, Koyel Das (Vehere) via USRP-users wrote: Hi, I am using USRP 2955 R and I have connected an antenna to one end of a two channel splitter and connected the other two ports of the splitter to the two RX1 pors of USRP. I am getting different phase difference in each run

Re: [USRP-users] USRP X310 PCIe connection Driver Problem

OK, so I did manage to debug it further by setting the ENABLE_EXTENDED_ERROR_INFO flag to true. It seems like the nirio_driver_iface::rio_ioctl function is returning 52003 error. uhd_usrp_probe --args "type=x300,resource=RIO0,fpga=HG" [INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_10580

[USRP-users] different phase difference using splitter on each run

Hi, I am using USRP 2955 R and I have connected an antenna to one end of a two channel splitter and connected the other two ports of the splitter to the two RX1 pors of USRP. I am getting different phase difference in each run of USRP though in one particular run the phase difference is consta

[USRP-users] USRP X310 PCIe connection Driver Problem

Dear all, I am trying to connect over PCIe to my USRP X310. I have installed the latest drivers niusrprio-installer-18.0.0.tar.gz and I am starting the PCIe connection with the following command: sudo /usr/local/bin/niusrprio_pcie start Making sure drivers are up to date... Module nikal is up-to-