[USRP-users] Re: "buffer_double_mapped :warning: allocate_buffer:" for dvbt_rx_8k.grc

On 07/10/2024 12:43, h57jaf...@gmail.com wrote: Hi, I am running “dvbt_rx_8k.grc” with sample ts file. The result save to the output file and also with UDP sink I can see the video stream in the vlc. But every time it stop after a while and generated output ts file with fixed size of 25.2MB.

[USRP-users] Re: Antena selection with RFNoC

On 07/10/2024 08:04, Maria Muñoz wrote: Hi all, We are using UHD 4.0 with RFNoC and GNURadio in an E320 device. We've always used the RF-A antenna channel without problems, but now we are trying to use the RF-B channel and are unsure how to configure the rfnoc radio block to do that. We have

[USRP-users] Re: Using 10GbE to stream receiver data to remote FPGA

On 05/10/2024 15:54, steve.wake...@roke.co.uk wrote: Thanks, I am struggling to see how this would connect to the RFNOC block. Are there any examples as to how the RFNOC block is architected to allow a remote streamer? Thanks ___ USRP-users maili

[USRP-users] Re: ADC saturation problem in USRP X310

On 18/10/2024 11:35, je.amg...@gmail.com wrote: Hello, I am currently facing an issue with ADC saturation on a USRP X310 equipped with a UBX daughterboard. We are conducting measurements using an LTE signal and a sinusoidal input signal, but it seems that the ADC is saturating, leading to a

[USRP-users] Re: ADC saturation problem in USRP X310

ope to be clear enough... but surelty  not crystal clear :-) Best regards   Patrice ---- *De: *"Marcus D. Leech" *À: *"usrp-users" *Envoyé: *Vendredi 18 Octob

[USRP-users] Re: Assistance with RFNoC Keep-One-In-N Block For Radiometer Application

On 16/10/2024 20:55, Ekin Su Sacin wrote: Hello, I am working on modifying rfnoc_keep_one_in_n.v code for a Dicke radiometer application. My goal is to generate a Dicke clock for different modes and to obtain the accumulated power of the incoming signal over half of the Dicke cycle. I am usin

[USRP-users] Re: Assistance with RFNoC Keep-One-In-N Block For Radiometer Application

ing" is typically fairly small. Just a bit of tutorial background.  Most (not all, I admit) folks on here are from the telecom/wireless/SIGINT/passive-radar   side of the "house" and may be less familiar with applications of radio for measuring natural phenomenon. On Thu, Oct 17, 2

[USRP-users] Re: Octoclock CDA-2990 produces no signals

On 03/10/2024 16:49, shapkiqua...@gmail.com wrote: Upon power up, the Octoclock should show all green LEDs on to the left. After several seconds, the “External” LED should turn off, and the PPS should begin to blink once per second. Instead ,this Octoclock simply goes frozen in a state in whi

[USRP-users] Re: Octoclock CDA-2990 produces no signals

On 03/10/2024 18:27, shapkiqua...@gmail.com wrote: Dear Marcus, Thanks for the reply. I have two of these Octoclocks and the second one is doing exactly what I said. It is blinking the PPS and sending a 10MHz square wave to an SOC’s REF_CLK. This is happening right now, a few feet to my righ

[USRP-users] Re: Using 10GbE to stream receiver data to remote FPGA

On 05/10/2024 13:51, steve.wake...@roke.co.uk wrote: We have a system in RFNOC that receives data at 100MSps. We want to stream this to a remote FPGA card over the 10GbE. Is this possible, and if so do we need to create our own RFNOC block to do this or can we use UHD libraries in some way?

[USRP-users] Re: Error: RuntimeError: Failure to create rfnoc_graph on USRP N310

On 29/10/2024 05:43, pigatoimdeafrance...@gmail.com wrote: Hello, I am having trouble setting up the USRPN310. Logs of $ uhd_find_devices are: ERROR: ld.so : object '/opt/uhd/lib/libuhd.so.4.4.0' from LD_PRELOAD cannot be preloaded (cannot open shared object file): ignored.

[USRP-users] Re: X310 - RfnocError: OpTimeout: Control operation timed out waiting for ACK

On 24/10/2024 16:36, c1337rog...@gmail.com wrote: Hi all, My setup: Ubuntu 20.04, UHD_4.7.0.HEAD-0-ga5ed1872, DPDK_19.11, X310 w/ newly updated XG image, Intel X710 NIC I’m trying to get DPDK working with the X310 but I’m failing on step 0. Running any of the example programs (without DPDK

[USRP-users] Re: Drop packets and sequence errors during X410 DPDK benchmark test

On 29/10/2024 19:38, dhpanch...@gmail.com wrote: Hi, I’m trying to conduct the UHD benchmark test using DPDK on X410 radio. I’m using the NI Dual 100 Gigabit Ethernet PCIe NIC card, using the Mellanox drivers, and have the UC_200 fpga image loaded on the radio. However, I keep experiencing p

[USRP-users] Re: Error: RuntimeError: Failure to create rfnoc_graph on USRP N310

On 29/10/2024 12:53, pigatoimdeafrance...@gmail.com wrote: Yes, both SFP+ ports are connected to the host. Host side, the ip addresses are: |enp3s0f0: flags=4163 mtu 9000| |inet 192.168.20.1 netmask 255.255.255.0 broadcast 0.0.0.0| |ether 7c:c2:55:7b:35:7e txqueuelen 1000 (Ethernet)| |RX p

[USRP-users] Re: Error: RuntimeError: Failure to create rfnoc_graph on USRP N310

On 29/10/2024 11:42, pigatoimdeafrance...@gmail.com wrote: Hi Marcus, N310 can be pinged with both addresses. I set up port 49152 and should be listed: $sudo firewall-cmd --list-ports 49152/udpv however, the problem still persists ___ USRP-us

[USRP-users] Re: Error: RuntimeError: Failure to create rfnoc_graph on USRP N310

On 29/10/2024 11:42, pigatoimdeafrance...@gmail.com wrote: Hi Marcus, N310 can be pinged with both addresses. I set up port 49152 and should be listed: $sudo firewall-cmd --list-ports 49152/udpv I'm not that familiar with "firewalld", but a protocol of "udpv" should perhaps be "udp" inste

[USRP-users] Re: Drop packets and sequence errors during X410 DPDK benchmark test

On 04/11/2024 20:12, dhpanch...@gmail.com wrote: I got it work. It seems RT_RUNTIME_SHARE disabled was the culprit. I re-enabled it using these instructions and the benchmark worked without packet drops or underruns: *Underruns Every Second with DPDK + Ubuntu* With Linux kernels 5.10 and be

[USRP-users] Re: Drop packets and sequence errors during X410 DPDK benchmark test

On 30/10/2024 13:38, dhpanch...@gmail.com wrote: I had to change my 100G IP address to 192.168.120.2 and channels on the X410 to “A”. I set the CPU to Performance Mode and lowered the sample rate to 122.88e6. However, I’m still experiencing dropped packets and sequence errors. /usr/local/

[USRP-users] Re: Signal Distortion and Phase Issues with USRP B210

On 11/11/2024 10:10, Marcus Müller wrote: Hello! Regarding what you see in trailing, my guess is that this is the step response of the built-in DC offset cancellation filter; "DC offset cancellation" is high-pass filter behaviour. This affects only frequencies in your signal that are very lo

[USRP-users] Re: UHD with DPDK minimum requirement

On 26/10/2024 12:15, Mehran Memarnejad wrote: Hi, Following the instructions on this link , I want to get the UHD work with DPDK so that I can transfer samples from E320 to Host. Question 1: The PC has an Intel Core i7 CPU and I don't k

[USRP-users] Re: Reg. MSB (only) trasmission

On 18/09/2024 04:08, Brajesh wrote: I am able to program N210 FPGA using newly generated .bit file. I am trying to transmit MSB (1-bit only ) from the N210 board and faithfully process these MSBs at the receiver end. Would appreciate some information on how it can be achieved. A pointer or tw

[USRP-users] Re: Automatically power on after power loss

On 19/09/2024 17:28, Eugene Grayver wrote: Hi, The 'soft' button on the N32x does not have an 'on' state.  The X310 has a real button that can be pushed in.  I have remote N32x devices that are not (easily) accessible.  How can I make sure they power up after a power outage? Thanks. __

[USRP-users] Re: Automatically power on after power loss

Yes. There’s an identical paragraph in the same document for N32x. Sent from my iPhone > On Sep 20, 2024, at 11:48 AM, Eugene Grayver wrote: > >  > Hi Marcus, > > Thanks for the quick response as usual. The wiki says the flag is specific > to N310. Does it apply to N3xx (i.e. 320/321) as

[USRP-users] Re: KAS kirkstone build of ni-titanium-rev5 on x410 with Vitis-AI Library and DPU drivers: Mainline kernel incompatible with zocl DPU driver; possible to use linux-xlnx kernel and make ti

On 01/10/2024 12:09, mruane--- via USRP-users wrote: Hi all! I’m an FPGA developer, dragged into the Yocto world a few years ago with the move to Zynq and ZynqMP architectures. As a research group, we mainly develop on Xilinx dev boards like the ZCU102 MPSoC, and ZCU111 RFSoC. Having recen

[USRP-users] Re: x300 reset script

simply sends a special message to the ZPU, which immediately forces a *hard* reset on   the FPGA--which will cause it to reset itself, and load the running FPGA image from the EEPROM.  This is   exactly what happens at power-up. On Thu, 19 Sept 2024 at 15:38, Marcus D. Leech wrote: On 19

[USRP-users] Re: x300 reset script

On 19/09/2024 09:44, cyberp...@gmail.com wrote: Hi all, I am using this the x300_reset.py script to reset the FPGA and would like to know a bit more about what is it resetting etc. (https://github.com/EttusResearch/uhd/blob/UHD-4.0/host/utils/x300_reset.py) Power off and on does not seem to

[USRP-users] Re: KAS kirkstone build of ni-titanium-rev5 on x410 with Vitis-AI Library and DPU drivers: Mainline kernel incompatible with zocl DPU driver; possible to use linux-xlnx kernel and make ti

On 02/10/2024 20:08, mruane--- via USRP-users wrote: Hi Marcus! Hahaha  I thoroughly enjoyed the rant!    I think you are correct about Make and its variations.   Indispensable seems an understatement for something that is so pervasive in software development.   As I mentioned, I am primaril

[USRP-users] Re: Ettus USRP X310 with Different Daughterboards

On 02/10/2024 20:17, Q W via USRP-users wrote: Hello, I just started using USRP for a project. I have a Ettus X310 with a UBX160, a LFTX and a LFRX installed on the motherboard. The X310 motherboard is quite old purchased in 2016/2017. Labview is used as the software platform. After connect

[USRP-users] Re: First 10 Samples From First Receive Always 0

uantized for you and delivered in   nice neat bits... On Thu, Nov 7, 2024 at 3:03 PM Marcus D. Leech wrote: On 07/11/2024 14:53, Chris Wozny wrote: > I had noticed that the first ten samples of my application were always > coming up as zero regardless of whether it was

[USRP-users] Re: First 10 Samples From First Receive Always 0

On 07/11/2024 14:53, Chris Wozny wrote: I had noticed that the first ten samples of my application were always coming up as zero regardless of whether it was 8-bits on host or 16-bits on host. I went down the path of trying to reproduce a minimal example to share with this mailing list, however

[USRP-users] Re: Trouble connecting to an x300

On 25/10/2024 13:18, Chad Spooner wrote: All: I'm having trouble controlling an Ettus x300 SDR using Ubuntu 22 servers. The brief description (details below) is that I can ping the device, but I can't see it using uhd_find_devices or uhd_usrp_probe or uhd_fft etc. I've looked around on the w

[USRP-users] Re: X310 - RfnocError: OpTimeout: Control operation timed out waiting for ACK

On 25/10/2024 13:32, c1337rog...@gmail.com wrote: Hi Marcus, Thank you for the suggestion. Unfortunately, this did not solve the issue I’m seeing. Every command that interfaces with the radio aside from uhd_find_devices terminates with: |[ERROR] [RFNOC::GRAPH] Caught exception while initial

[USRP-users] Re: Drop packets and sequence errors during X410 DPDK benchmark test

On 04/11/2024 20:12, dhpanch...@gmail.com wrote: I got it work. It seems RT_RUNTIME_SHARE disabled was the culprit. I re-enabled it using these instructions and the benchmark worked without packet drops or underruns: *Underruns Every Second with DPDK + Ubuntu* With Linux kernels 5.10 and be

[USRP-users] Re: starting radios in parallel

On 20/11/2024 14:40, ja...@gardettoengineering.com wrote: I have a project where I have to start up a series of N320 radios.  Currently we do it sequentially and that can take some time.  Is there a way to do them in parallel? I thought I saw somewhere that the driver was the limiting factor

[USRP-users] Re: Real-world experience with X440

On 15/11/2024 16:52, Eugene Grayver wrote: Hi, I am considering the X440 for a wideband record/playback system.  What benchmarks has Ettus done? Is there any hardware out there that can continuously stream (one way, TX or RX) the full 8 Gsps (i.e. 2x 4 Gsps) for the combined bandwidth of 2x

[USRP-users] Re: USRP sink with GPIO

On 19/11/2024 11:02, Tim Vancauwenbergh wrote: Dear, I am revisiting an issue I encountered earlier. I have a flow that generates pulses with spaces between them continuously. To switch between the RX and TX paths on a single antenna, I tried utilizing GPIO to control an RF switch. Tests we

[USRP-users] Re: B210 power and gain levels

On 20/11/2024 05:02, Marcus Müller wrote: Depends on the gain you set, and the frequency you're working on. I wish I could give you a simple number or even just a graph over gain, but it's necessarily a two-parameter thing. You will have to measure. At max gain, you'd expect full scale output

[USRP-users] Re: Runtime error

On 18/11/2024 02:19, Hamdüsena BİLGİ (BİLGEM) via USRP-users wrote: Hello dear usrp users, After a succesfull uhd_usrp_probe when trying to run the Ettus E320 on Gnu Radio I get the following error message: QStandardPaths: XDG_RUNTIME_DIR not set, defaulting to '/tmp/runtime-root' Qt GUI: Co

[USRP-users] Re: LED quickly turns back off X410

On 26/11/2024 14:36, dhpanch...@gmail.com wrote: Its a high-end ASUS desktop machine with 128 GB RAM: description: Desktop Computer product: System Product Name (SKU) vendor: ASUS version: System Version serial: System Serial Number width: 64 bits capabilities: smbios-3.5.0 dmi-3.5.0 smp v

[USRP-users] Re: Module Not Found Error

Python API in the build, see: https://files.ettus.com/manual/page_python.html *Kimden: *"Marcus D. Leech" *Kime: *"usrp-users" *Gönderilenler: *25 Kasım Pazartesi 2024 18:04:27 *Konu: *[USRP-users]

[USRP-users] Re: n310 | Error: failed receiving packet. RfnocError

oduct=n310,addr=10.10.0.100,master_clock_rate=125e6" --rx_rate 25e6 --tx_rate 25e6 On Tue, 26 Nov 2024 at 16:59, Marcus D. Leech wrote: On 26/11/2024 10:18, Houshang wrote: Hello I have following UHD version on my server: /ad@bm-super11-intel:~/houshang$ uhd_config_info

[USRP-users] Re: n310 | Error: failed receiving packet. RfnocError

l operation timed out waiting for ACK. Error: failed receiving packet. RfnocError: OpTimeout: Control operation timed out waiting for ACK./ On Tue, 26 Nov 2024 at 17:37, Marcus D. Leech wrote: On 26/11/2024 11:32, Houshang wrote: Hi Marcus I ran the benchmark command on both ip of

[USRP-users] Re: n310 | Error: failed receiving packet. RfnocError

N software runs the interface at, but clearly in your 2nd example, on the   other IP, it's able to support 25Msps without any issue. On Tue, 26 Nov 2024 at 17:22, Marcus D. Leech wrote: On 26/11/2024 11:10, Houshang wrote: Many thanks for prompt reply Marcus! Please fi

[USRP-users] Re: n310 | Error: failed receiving packet. RfnocError

On 26/11/2024 10:18, Houshang wrote: Hello I have following UHD version on my server: /ad@bm-super11-intel:~/houshang$ uhd_config_info --version UHD 4.7.0.0-0ubuntu1~jammy1 ad@bm-super11-intel:~/houshang$ ssh root@10.10.0.100/ And the following UHD version on my n310: /root@ni-n3xx-32000F1:~#

[USRP-users] Re: X310 with dual TwinRX set up

Also try running at a lower sample rate at first. Just to see that you have the logic correct. Sent from my iPhone > On Mar 12, 2021, at 9:18 AM, Rob Kossler wrote: > >  > Is there any chance that your code is attempting to set the master clock > rate? If so, perhaps see what happens if yo

[USRP-users] Re: import error gnuradio

On 03/12/2021 08:49 AM, COURANT Frederique - Contractor via USRP-users wrote: Hi Users, When I try to run my flow graph I have this error : from .blocks_python import * ImportError: /usr/local/lib/python3/dist-packages/gnuradio/blocks/-blocks_python.cpython-38-x86_64-linux-gnu.so : undefine

[USRP-users] Re: [UHD 4.0.0.0] USRP 2901 How is it possible to know if fpga is loaded

This device loads its FPGA image whenever it has been power cycled and you start a session with it. The Images would be in the data files associated with your UHD installation. You cannot establish a session with it unless there’s a functional FPgA image loaded and running. Sent from my iP

[USRP-users] Re: Where do I find this call to change it.

I think we need more context. Is this from a program you write yourself? Someone else’s code? A Gnuradio flow graph? Your own? Someone else’s? Sent from my iPhone > On Mar 12, 2021, at 3:02 PM, Jerrid Plymale > wrote: > >  > Hello All, > > Here is the warning message I am trying to so

[USRP-users] Re: Where do I find this call to change it.

some > DSP, and a bunch of GUI variable control and variable display blocks. > > Best Regards, > > Jerrid > > From: Marcus D Leech > Sent: Friday, March 12, 2021 12:17 PM > To: Jerrid Plymale > Cc: USRP-users@lists.ettus.com > Subject: Re: [USRP-users] Wher

[USRP-users] Re: Where do I find this call to change it.

for Android <https://aka.ms/ghei36> -------- *From:* Marcus D Leech *Sent:* Friday, March 12, 2021 12:41:41 PM *To:* Jerrid Plymale *Cc:* USRP-users@lists.ettus.com *Subject:* Re: [USRP-users] Where do I find this call to change it. ok so this is likel

[USRP-users] Re: Ettus N300 8-bit sample capture

I do t think they implemented SC8 on any of the devices that have 10Gig interfaces available. Sent from my iPhone > On Mar 16, 2021, at 8:42 AM, Nik Ansell wrote: > >  > > Hello All, > > I am trying to capture 8-bit samples using an Ettus USRP N300, rather than > the default of 16-bit (s

[USRP-users] Re: How to create stream data from USRP (via PCI) using rfnoc block in c++

On 03/16/2021 07:10 AM, Sourin Mondal (Vehere) wrote: Hi, I am trying to stream data from USRP where the data passed through RFNOC block (in order to create a lowpass filter) before coming to host machine and I am trying to implement it using C++ code. I know how to stream data normally. i.e.

[USRP-users] Re: x310 PPS issues

Could you post scope traces? My guess is that the edges are not crisp enough for the 1PPS input processing. Sent from my iPhone > On Mar 18, 2021, at 5:00 PM, Richard J. Muri wrote: > >  > Hello, > > I’m using a series of x310 USRPs synchronized together using both an external > 10 MHz r

[USRP-users] Re: question of X300 revision

On 03/21/2021 04:16 AM, Oscar Pablo wrote: Hi, the public released X300 schematic is revision 1. i want to know if this revision is the revision in uhd source code. in uhd source code there is strange words "x300_clock_ctrl is not compatible with revs <= 4 and maylead to locking issues" so

[USRP-users] Re: question of X300 revision

en this schematic is no > useful. i know x300 schematic hide the part of pcie. but if other part is ok > then it still have value for reference if someone want to use some part of > it. > > > From: Marcus D. Leech > Sent: Sunday, March 21, 2021 3:13 PM > To: usrp-us

[USRP-users] Re: Strong noise added to signal transmitted by X310 with a UBX 40 daughterboard

Is the j B is over-the-air or direct connection? What frequency? Bandwidth? Do you have TX and RX gain turned all the way up? Can you share your flow-graphs, or minimum Graphs that show the problem? Sent from my iPhone > On Mar 24, 2021, at 12:20 PM, Jerrid Plymale > wrote: > >  > Hello Al

[USRP-users] Re: Strong noise added to signal transmitted by X310 with a UBX 40 daughterboard

creases to around -78 dB. Best Regards, Jerrid You are likely just seeing the LO leakage, along with the inevitable phase-noise curve of the LO. *From:* Marcus D Leech *Sent:* Wednesday, March 24, 2021 11:58 AM *To:* Jerrid Plymale *Cc:* USRP-users@lists.ettus.com *Subject:* Re: [USRP-use

[USRP-users] Re: Strong noise added to signal transmitted by X310 with a UBX 40 daughterboard

reference > as well? > > Best Regards, > > Jerrid > > From: Marcus D. Leech > Sent: Wednesday, March 24, 2021 2:23 PM > To: Jerrid Plymale > Cc: USRP-users@lists.ettus.com > Subject: Re: [USRP-users] Strong noise added to signal transmitted by X310 > with a

[USRP-users] Re: USRP N300 - Set RX bandwidth

 This is very interesting. I am trying to set the rx bandwidth on a N321 for > a while now. > > Is there any workaround? Our bandwidth seems stuck at 8MHz while our > application needs much more. > > Thanks > > Lorenzo > >>> On Feb 25, 2021, at 10:32 A

[USRP-users] Re: USRP N300 - Set RX bandwidth

bandwidth in front of the ADC is *fixed*, and bandwidth delivered to your application is controlled strictly by the selected sample-rate. On Feb 25, 2021, at 10:32 AM, Marcus D. Leech via USRP-users wrote:  On 02/25/2021 11:30 AM, Puertas Blanco, Roberto via USRP-users wrote: Hello, I

[USRP-users] Re: Shared UHD Access

On 03/25/2021 01:23 PM, Ben Magistro wrote: This might be more of a GNURadio question, but is it possible to share a single USRP device (E310 in this case) with two flowgraphs? What I mean is the E310 has a "A" and "B" channel, could you use channel "A" with one flowgraph and "B" with another

[USRP-users] Re: Strong noise added to signal transmitted by X310 with a UBX 40 daughterboard

y iPhone > > > On Mar 24, 2021, at 7:13 PM, Jerrid Plymale > wrote: > >  > Ok, if that’s the case, would it help to have both USRPs connected to the > same 10 MHz reference signal and PPS? In this situation, would I need to > provide a secondary source for the

[USRP-users] Re: Strong noise added to signal transmitted by X310 with a UBX 40 daughterboard

t; > Jerrid > > From: Marcus D Leech > Sent: Thursday, March 25, 2021 2:29 PM > To: Jerrid Plymale > Cc: USRP-users@lists.ettus.com > Subject: Re: [USRP-users] Strong noise added to signal transmitted by X310 > with a UBX 40 daughterboard > > If you move the TX o

[USRP-users] Re: Strong noise added to signal transmitted by X310 with a UBX 40 daughterboard

etc) --int-n tune USRP with integer-N tuning *From:*Marcus D Leech *Sent:* Thursday, March 25, 2021 2:29 PM *To:* Jerrid Plymale *Cc:* USRP-users@lists.ettus.com *Subject:* Re: [USRP-users] Strong noise added to signal transmitted by X310 with a UBX 40 d

[USRP-users] Re: Strong noise added to signal transmitted by X310 with a UBX 40 daughterboard

using at least 30dB of attenuation in the coax link? Sent from my iPhone On Mar 25, 2021, at 6:27 PM, Jerrid Plymale mailto:jerrid.plym...@canyon-us.com>> wrote:  Yes, moving TX out of the RX band has no affect on the noise level increase. Best Regards,

[USRP-users] Re: B210 EVM

At 30MSPS are you seeing any overruns? What is your master clock rate? Sent from my iPhone > On Mar 26, 2021, at 2:41 PM, Julian Arnold wrote: > > Chris, > > I would say that your EVM is mainly affected by your SNR and your digital > receiver implementation (AGC / filters / clock recovery /

[USRP-users] Re: B210 EVM

7648000.000 Sps... > [INFO] [B200] Asking for clock rate 27.648000 MHz... > [INFO] [B200] Actually got clock rate 27.648000 MHz. > Actual RX Rate: 27648000.081 Sps... > > Setting RX Gain: 55.00 dB... > Actual RX Gain: 55.00 dB... > > Waiting for "lo_locked&q

[USRP-users] Re: Intermittent problem with GPS synchronization for multiple E310 units

On 03/31/2021 06:49 AM, Ofer Saferman wrote: Hello, I have a system that uses 4 USRP E310 units. Each unit is connected to a GPS antenna. Time source is set to gpsdo. I run the same software remotely on all 4 units from a PC. Software runs on the units themselves. I print out messages to show

[USRP-users] Re: 10us delay between the two X310 daughterboards in TX

It’s like the semantics of “pC clock” synch causing this. Try changing to “unknown PPS” Sent from my iPhone > On Mar 31, 2021, at 10:43 AM, Lorenzo Bertizzolo > wrote: > >  > Hi all, > > I am experiencing a time synchronization issue internal to the USRP X310. > With the help of an oscillo

[USRP-users] Re: Intermittent problem with GPS synchronization for multiple E310 units

ime source in code and go through the whole >>> process of synchronization using gps_time? >>> Can I "assume" the systems are synced just by the effect they were >>> connected enough time to a GPS antenna? and then just access their time - >>> radio_

[USRP-users] Re: Intermittent problem with GPS synchronization for multiple E310 units

per other examples posted here and > sync_to_gps example. Can you please comment how I can benefit from the fact > that E310 units use gpsd in Linux? > > Regards, > Ofer Saferman > >> On Wed, Mar 31, 2021 at 10:13 PM Marcus D Leech >> wrote: >> >> >

[USRP-users] Re: Error init_usrp

On 04/01/2021 04:22 AM, COURANT Frederique - Contractor via USRP-users wrote: Hi Users, I have follow tutorials Getting Started with UHD and C++ but when I try to run init_usrp I have the following error : Error: RuntimeError: For legacy APIs, all devices require the same number of radios,

[USRP-users] Re: Intermittent problem with GPS synchronization for multiple E310 units

should work, but it has been a while since I installed any packages on my E310. The E310 is based on OpenEmbedded Linux, so all the info about installing and managing packages on OpenEmbedded apply. On Wed, Mar 31, 2021 at 11:40 PM Marcus D Leech mailto:patchvonbr...@gmail.com>>

[USRP-users] Re: Intermittent problem with GPS synchronization for multiple E310 units

thread: http://ettus.80997.x6.nabble.com/USRP-users-Setting-E310-time-to-GPS-time-td872.html The standard system image should already be configured to use NTPD/GPSD to steer system time. On Wed, Mar 31, 2021 at 11:40 PM Marcus D Leech mailto:patchvonbr...@gmail.com>> wrote: Ju

[USRP-users] Re: Debugging with Visual Studio Code in v3.8

On 03/31/2021 03:47 PM, Jeff S wrote: While using GNURadio v3.7, I used to be able to perform source-level debugging with Visual Studio Code (probably more often than I'd like to admit) using the instructions located at: https://wiki.gnuradio.org/index.php/UsingVSCode I have now upgraded

[USRP-users] Re: Problem with interfacing Raspberry Pi 4 to USRP B210 with Python API

Perhaps look at the PyBombs recipe for your platform—there’s probably a compiler flag that needs to be set that you’re missing, but I don’t know what that is. Also, in general, you don’t need to become root to compile and build code—only needed during the “make install” Sent from my iPhone

[USRP-users] Re: Intermittent problem with GPS synchronization for multiple E310 units

opkg list | grep ntpd, does not yield anything useful so it is not > just a question of typing it correctly. > > Regards, > Ofer Saferman > >> On Thu, Apr 1, 2021 at 4:34 PM Marcus D. Leech >> wrote: >> On 04/01/2021 06:00 AM, Ofer Saferman wrote: >>&g

[USRP-users] Re: Problem with interfacing Raspberry Pi 4 to USRP B210 with Python API

kage maintainers” for each distro, and they’re the ones who end up making decisions like enabling support for various options, turning on “weird” compiler flags, etc. UHD is no different in this regard. > > >> On Fri, Apr 2, 2021 at 11:25 PM Marcus D Leech >> wrote: &g

[USRP-users] Re: Problem with interfacing Raspberry Pi 4 to USRP B210 with Python API

it > be faster for me to just create a C++ function to communicate with the USRP, > and put a Python wrapper around it? > >> On Sun, Apr 4, 2021 at 1:15 AM Marcus D Leech >> wrote: >> >> >> Sent from my iPhone >> >>> On Apr 3, 2021, at

[USRP-users] Re: Problem with interfacing Raspberry Pi 4 to USRP B210 with Python API

>> >> One caveat; the pi USB 3.0 interface can’t quite keep up with the B-210 and >> I get an overflow when capturing 20MSPS on 2 channels at about 500k samples. >> I don’t know if this is hardware or software, but if anyone knows of a >> solution, I’m all ears. Having said that, I can consis

[USRP-users] Re: DC power supply for B210

5.5 x 2.1 is still correct. Sent from my iPhone > On Apr 9, 2021, at 7:09 AM, brendan.horsfi...@vectalabs.com wrote: > >  > Hi All, > > I am looking to purchase an external power supply for my USRP B210, but I > can’t figure out what size connector I should get. I found an old post where >

[USRP-users] Re: B205 mini-i isn't found by uhd_find_devices

On 04/12/2021 12:06 PM, para...@kwesst.com wrote: Hi everyone, I'm just starting out with the USRP B205 mini-i, and I'm having some issues. I'm running Ubuntu 20.04 LTS, I've also installed the UHD toolchain using the instructions on the Ettus website (Building and Installing the USRP Open-

[USRP-users] Re: Help enabling CAN0 on E310

On 04/12/2021 12:48 PM, Rich Gopstein wrote: Can anyone offer any suggestions? I've been digging through TCL files looking for where I could enable the CAN0 controller, but nothing has worked so far. Thanks. Rich I'll point out that USB-to-CAN adapters aren't that expensive. Might be a more-

[USRP-users] Re: B205 mini-i isn't found by uhd_find_devices

What does dmesg report when you plug the device in? Sent from my iPhone > On Apr 12, 2021, at 2:19 PM, para...@kwesst.com wrote: > >  > Thanks Dustin, > > Did resetting the USB fix your problem? > > I don’t think I’m having any USB issues per say, I can plug the B205 in and > after doing an

[USRP-users] Re: B205 mini-i isn't found by uhd_find_devices

There is no kernel-level Driver for this device. It’s handled by Libusb Sent from my iPhone > On Apr 12, 2021, at 3:34 PM, para...@kwesst.com wrote: > >  > I’ve been poking around trying to find out any more information on my issue > and I noticed this after running the ‘usb-devices’ command:

[USRP-users] Re: B205 mini-i isn't found by uhd_find_devices

Also it may be blowing whatever power budget your port provides. Is it a USB2 or USB3 port? Sent from my iPhone > On Apr 12, 2021, at 3:36 PM, Marcus D Leech wrote: > > There is no kernel-level > Driver for this device. It’s handled by Libusb > > Sent from my iPhon

[USRP-users] Re: How to tx s16 file with tx_samples_from_file

Complex baseband is the natural format for this stuff. If you have real-sampled data you’ll have to convert it into complex baseband first. Sent from my iPhone > On Apr 12, 2021, at 9:32 PM, ?? WANG Cui wrote: > >  > Hi, > When I try tx_samples_from_file example, looks like it only take Comp

[USRP-users] Re: How to tx s16 file with tx_samples_from_file

r RF signal, IQ Complex signal double the file size, which is quite > inconvenient, it will be best that USRP can natively support such format. > (Even sometimes RF signal is in 4-bit, 1 bit format, and convert to I/Q will > be more than 10 times larger...) > > From: Marcus D Lee

[USRP-users] Re: How to tx s16 file with tx_samples_from_file

gt; a lot on host computing resource and USB/NIC bandwidth and performance. > Thanks! > > From: Marcus D Leech > Sent: Tuesday, April 13, 2021 11:45 AM > To: 王璀 WANG Cui > Cc: USRP-users@lists.ettus.com > Subject: Re: [USRP-users] How to tx s16 file with tx_samples_from_fi

[USRP-users] Re: Contradictory overflow messages when recording rx samples with Python API

Sent from my iPhone > On Apr 13, 2021, at 3:05 AM, brendan.horsfi...@vectalabs.com wrote: > >  > Hi All, > > I am using a Python script to capture a short burst of rx samples from my > B210. The script is based heavily on the Ettus example “benchmark_rate.py”, > with a couple of additional

[USRP-users] Re: How to tx s16 file with tx_samples_from_file

occupied by such samples is identical. I think we need to understand exactly what you have sampled, and how, and at what rate. I think *you* need to understand that in more depth as well, before we can provide much meaningful help. *From:*Marcus D Leech *Sent:* Tuesday, April 13, 2021 12

[USRP-users] Re: How to tx s16 file with tx_samples_from_file

rate of 4.096Msps. That's according to my cursory understanding of the GPS L1 C/A signal, but there are others here with more experience with GPS than me. *From:*Marcus D. Leech *Sent:* Tuesday, April 13, 2021 10:03 PM *To:* 王璀WANG Cui *Cc:* USRP-users@lists.ettus.com *Subject:* Re:

[USRP-users] Re: B205 mini-i isn't found by uhd_find_devices

This is the kind of error that happens when you have a “mixed” system with libraries and utilities from different builds. Also after rhe build/install did you “sudo ldconfig” ? Sent from my iPhone > On Apr 13, 2021, at 2:38 PM, Robin Coxe wrote: > >  > Have you checked the B205mini-i board

[USRP-users] Re: Contradictory overflow messages when recording rx samples with Python API

ropped samples. > > Do you have any idea why this is the case? Is the resolution of the timer > less fine-grained in the Python implementation perhaps? > > Thanks, > Brendan. > > > > >> On Tue, Apr 13, 2021 at 11:05 PM Marcus D Leech >>

[USRP-users] Re: Contradictory overflow messages when recording rx samples with Python API

/EttusResearch/uhd/issues This is UHD4.0? So this may be a pybind11 issue with it correctly packaging the metadata from the C++ layer. On Wed, Apr 14, 2021 at 12:02 PM Marcus D Leech mailto:patchvonbr...@gmail.com>> wrote: That just sounds like a bug. The Python API is still cons

[USRP-users] Re: Calling C++ UHD functions from Python

Wrapping C++ for Python usage is a very common thing to want to do in the Python world. UHD and GnuRadio have used Swig in the past and now use pybind11 in the latest codebases. https://realpython.com/python-bindings-overview/ Sent from my iPhone > On Apr 16, 2021, at 9:16 AM, page heller

[USRP-users] Re: Reflected power on USRP B200

A circulator can give you an additional 20dB isolation. Putting 5d!m into the RX2 port will likely destroy the RX amplifier in the AD9361. Sent from my iPhone > On Apr 19, 2021, at 9:12 AM, Martin Elfvelin via USRP-users > wrote: > >  > Hello all, > > I am planning on using a USRP B200 i

[USRP-users] Re: Reflected power on USRP B200

On 04/19/2021 09:49 AM, Martin Elfvelin wrote: Thank you for your input. Do you suggest adding a circulator to the system or rather replacing the switch with a circulator? Best regards, Martin I'd say add a circulator in addition to your switch. On Mon, Apr 19, 2021 at 3:43 PM Mar

[USRP-users] Re: UHD dual-install issue

On 04/19/2021 03:15 AM, brendan.horsfi...@vectalabs.com wrote: Hi All, I have just upgraded my laptop to the latest version of GNU Radio Companion (ver 3.8.2.0 (Python 3.6.9)), and am now trying to use it to monitor a block of spectrum with my USRP B210. Unfortunately the flowgraph won’t run

[USRP-users] Re: Possibility of LO synchronization between multiple USRP B210s

There no way to do this with B210. The synthesizers in the AD9361 have no usable resynch feature AND the mixers are 2XL0 which introduces its own 180deg phase ambiguity. Sent from my iPhone > On Apr 19, 2021, at 3:56 PM, zhang.we...@gmail.com wrote: > >  > Hi, > > I am trying to use mult

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