[USRP-users] Re: x310 Not Sending Jumbo Packets (>8000 bytes) as 1 Packet on 10GigE

On 28/06/2024 00:44, cjohn...@serranosystems.com wrote: Here is some interesting info that I could not explain. * *Ran on server at 200Msps, got S’s with uhd thread priority at 0.90* * *Ran on server at 100Msps, got S’s with uhd thread priority at 0.90* * *Ran on server at

[USRP-users] Re: x310 Not Sending Jumbo Packets (>8000 bytes) as 1 Packet on 10GigE

On 27/06/2024 19:47, cjohn...@serranosystems.com wrote: Hi Marcus, Anyone else able to look at this with ability to Tx on x310? I have looked at all the counters on the server, and it I don’t see anything unusual. Let me know if you need me to up/down the interface (to reset) and provide

[USRP-users] Re: x310 Not Sending Jumbo Packets (>8000 bytes) as 1 Packet on 10GigE

On 27/06/2024 18:11, cjohn...@serranosystems.com wrote: Hi, Did you give the modified host/examples/tx_timed_samples.cpp I provided above a try? This maybe the best first path to go down, to make sure it is not a UHD thing. You can just replace the current tx_timed_samples.cpp with this one

[USRP-users] Re: x310 Not Sending Jumbo Packets (>8000 bytes) as 1 Packet on 10GigE

On 27/06/2024 15:41, cjohn...@serranosystems.com wrote: Hi, Can you help me figure out what the problem is using the modified example (I provided in last response), a fast machine which has the tips and tricks implemented? I directly connected our 64 core / 4 GPU / >250GI RAM workstation

[USRP-users] Re: x310 Not Sending Jumbo Packets (>8000 bytes) as 1 Packet on 10GigE

On 26/06/2024 22:48, cjohn...@serranosystems.com wrote: Hi, I appreciate the response. I previously made all of those changes (except bios, DPDK, and Sprectre). In addition, I have MTU at 9000. I just re-verified. I don't *think* the 2974 SOM embedded computer has the type of interface

[USRP-users] Re: x310 Not Sending Jumbo Packets (>8000 bytes) as 1 Packet on 10GigE

On 17/06/2024 21:16, cjohn...@serranosystems.com wrote: I hacked the code to set the DATA_FRAME_MAX_SIZE = 8500, half-way between 8000 and MTU 9000. Then I made sure to set the send_frame_size=recv_frame_size=8700, which is equal, and over the MAX_SIZE.It still picks 8144. You can see

[USRP-users] Re: x310 Not Sending Jumbo Packets (>8000 bytes) as 1 Packet on 10GigE

On 17/06/2024 20:29, cjohn...@serranosystems.com wrote: It is the switch that is internal to you hardware on USRP-2974. You can see the switch below (from your documentation). I’m sending from the SBC (Single board computer) shown in the diagram.

[USRP-users] Re: x310 Not Sending Jumbo Packets (>8000 bytes) as 1 Packet on 10GigE

On 17/06/2024 20:29, cjohn...@serranosystems.com wrote: It is the switch that is internal to you hardware on USRP-2974. You can see the switch below (from your documentation). I’m sending from the SBC (Single board computer) shown in the diagram.

[USRP-users] Re: x310 Not Sending Jumbo Packets (>8000 bytes) as 1 Packet on 10GigE

On 17/06/2024 19:54, cjohn...@serranosystems.com wrote: We have followed all instructions on the website and searched the forums with no solutions. I have provided much evidence below that USRP/UHD driver is not behaving properly in this case. We are trying to send a 8192 byte packet to the

[USRP-users] Re: My new N210 does not recognize updated UHD driver

On 17/06/2024 16:37, hoosa...@hotmail.com wrote: I used Pybombs to install the UHD and the GNURadio on my PC running Ubuntu v23.10, the terminal screen indicated that these installations completed successfully, however the terminal did not recognize my “uhd_usrp_probe” command. Pinging the

[USRP-users] Re: IOError: x300 fw poke32 persist with large adquisition times

On 13/06/2024 17:16, Anabel Almodovar wrote: Dear Marcus, /Is this happening on BOTH USRPs?/  Yes, it happens with both USRP randomly. /Have you followed this guide here for performance tuning?/ https://kb.ettus.com/USRP_Host_Performance_Tuning_Tips_and_Tricks Yes, I have

[USRP-users] Re: IOError: x300 fw poke32 persist with large adquisition times

On 13/06/2024 10:14, Anabel Almodovar wrote: Hi, I am working with 2 USRP X310 equipped with TwinRx. They are connected to a PC with Ubuntu 22.04 and UHD 4.1 via dual 10Gb port. I am using the rx_sample_to_file.cpp example from UHD 4.5 version for 8 channel acquisition in continuous mode. I

[USRP-users] Re: X310 light up but no real transmission happens!

On 06/06/2024 10:58, Kariminezhad Ali (CR/APC1) via USRP-users wrote: Hi everyone, I am running a gnuradio generated code on NI-X310. The TX port lights up red but there is no transmission on the air. I have done different debugging steps, from replacing the cables to replacing the whole

[USRP-users] Re: GPS fix behavior on USRP E320

inches from the GPS antenna that feeds into the USRP. So not an SDR issue, but perhaps this thread may help a USRP user in the future.. [1] https://www.usb.org/sites/default/files/327216.pdf Thanks for sleuthing this, David! *From:*Marcus D. Leech *Sent:* Wednesday, June 5, 2024 7:59 PM

[USRP-users] Re: GPS fix behavior on USRP E320

characters will go to you, some to GPSD. Now, having said that, yeah, only 768 bytes per update interval max.  How many bytes in a typical NMEA sentence, and how   many sentences per interval? *From:*Marcus D. Leech *Sent:* Wednesday, June 5, 2024 8:56 AM *To:* usrp-users@lists.ettus.com *Subject

[USRP-users] Re: GPS fix behavior on USRP E320

On 05/06/2024 08:43, David Raeman via USRP-users wrote: Hello, I'm having a difficult time getting consistent GPS fix behavior from a set of USRP E320 radios. They are all using UHD 4.4 with the same active GPS antenna (Siretta Tango 21, which has a 28dB LNA and short ~6" coax run). When

[USRP-users] Re: Big network Latency on 100G port in X410

On 05/06/2024 08:32, zhou via USRP-users wrote: Hi All, I am using MCX516A-CCAT for X410 USRP. It has three network ports, two for 100Gb QSFP and one for 1Gb ethernet. They are directly connected to host. Surprisingly, I find much bigger latency on the 100Gb link than the 1Gb link when ping

[USRP-users] Re: usrp x310

On 04/06/2024 09:23, Moussa GUEMDANI wrote: Hello, I would like to know if I can use the usrp x310 as an O-RU, connected to a CU/DU via openfronthaul interface, (split 7.2x) Best regards Moussa ___ USRP-users mailing list

[USRP-users] Re: Recording and playing back RF Activity

you suggest any other low cost approach for recording and playing back 100MHz bandwidth at 2.4GHz? Not immediately.  But I've been an SDR guy since 2004, and a USRP guy since shortly after that.  So, that's kind of   where my head-space is at. Thanks On Tue, May 21, 2024 at 5:47 PM Marcus D.

[USRP-users] Re: Recording and playing back RF Activity

On 21/05/2024 20:24, Hamid Niknami via USRP-users wrote: Hi, I am very new to SDR. I need a low cost solution to record all the interferences in the 100MHz band of the 2.4GHz ISM band (created by multiple WiFi and Bluetooth devices) and then play it back to emulate the interference. I do

[USRP-users] Re: Power output on the N321 LO OUT

On 08/05/2024 15:21, Eugene Grayver wrote: What power level can I expect on the N321 LO output at 2 GHz? Thanks. ___ USRP-users mailing list --usrp-users@lists.ettus.com To unsubscribe send an email tousrp-users-le...@lists.ettus.com Somewhere between

[USRP-users] Re: Sharing one UHD device across multiple hosts

On 06/05/2024 09:17, Rob Kossler wrote: https://files.ettus.com/manual/page_stream.html#stream_remote Thanks, Rob.  I still had "Alternative Stream Destination" in my head, which frustrated my search. ___ USRP-users mailing list --

[USRP-users] Re: Sharing one UHD device across multiple hosts

On 05/05/2024 16:00, Marcus Müller wrote: That alternate streaming target functionality re-emerged in later UHD versions for RFNoC-supported devices. Is there an example of this somewhere?  I only vaguely remember seeing this... On 05.05.24 17:35, Marcus D. Leech wrote: On 05/05/2024 11

[USRP-users] Re: Sharing one UHD device across multiple hosts

On 05/05/2024 11:27, jmalo...@umass.edu wrote: Hello, I am wondering if it is possible to allow another host device to start a session with an x410 after it already has a session with a different host device. In other words, multiple devices sharing one USRP device at the same time. I

[USRP-users] Re: Quick question about tuning USRP B210 for sweep spectrum

On 02/05/2024 08:25, Olo via USRP-users wrote: I got 8GHz info from: https://www.rtl-sdr.com/hackrf-sweep-spectrum-analyzer-windows/ I want to express my gratitude for your prompt responses and assistance thus far. Your support has been valuable. However, I have a specific query regarding

[USRP-users] Re: Quick question about tuning USRP B210 for sweep spectrum

On 02/05/2024 07:38, Olo via USRP-users wrote: Goal is to find the limits. The HackRF for example can do 8GHz per second sweep. So lets consider that as example. Assuming 20Mhz/tuning (I think HackRF supports a maximum of 20Mhz bandwidth), that's 2.5msec/tuning. The X310 with the TwinRX can

[USRP-users] Re: Freq synchronization between

On 01/05/2024 11:00, zhou wrote: On Wednesday, 1 May 2024 at 15:15:12 BST, Marcus D. Leech wrote: On 01/05/2024 10:11, zhou via USRP-users wrote: Hi Marcus, Thanks for your response. "Are you setting up clocking identically for both USRPs?   That is setting the reference

[USRP-users] Re: Freq synchronization between

us.com> wrote: On Wednesday, 1 May 2024 at 15:15:12 BST, Marcus D. Leech <patchvonbr.

[USRP-users] Re: Quick question about tuning USRP B210 for sweep spectrum

How fast do you need to tune it? No synthesizer that is optimized to reduce phase noise and frequency error can tune instantly. What is the scale of the goal? Sent from my iPhone > On May 1, 2024, at 2:42 PM, Olo via USRP-users > wrote: > >  > Would it be possible, with the USRP X310

[USRP-users] Re: Freq synchronization between

sts.ettus.com> wrote: On Wednesday, 1 May 2024 at 15:15:12 BST, Marcus D. Leech <patchvonbr.

[USRP-users] Re: Freq synchronization between

rnal") usrp->set_time_source("external") I think this should automatically set both devices. "What type of daughtercards are in your X310?" UBX Kind regards. And, to clarify, this is an Octoclock-G, and not a plain Octoclock ? On Wednesday, 1 May 2024 at 14:19:44 BST

[USRP-users] Re: Freq synchronization between

On 01/05/2024 08:25, zhou via USRP-users wrote: Hi All, I am trying to use 4Rx and 4Tx antennas from two X310 USRPs. I hope the received signals have stable phase relationship but they don't seem to be. I am wondering why and how to fix it. I measured the phase using the connection as

[USRP-users] Re: Quick question about tuning USRP B210 for sweep spectrum

On 30/04/2024 03:20, Olo via USRP-users wrote: Hi there, I'm USRP B210 for a project. I'm trying to make a sweep spectrum analyzer that scans frequencies quickly. Currently, I'm tuning frequencies like this (which is I think the main issue): tune_request =

[USRP-users] Re: X410 self-calibration

On 26/04/2024 10:34, zhou via USRP-users wrote: Hello all, When calibrating X410 uhd_cal_tx_dc_offset --verbose --args='192.168.20.2,mgmt_addr=192.168.6.99' --freq_start 2e9 --freq_stop 7.2e9 --precision 0.1 --freq_step 5e6 --subdev="A:0" Error happened: Error: This board does not have

[USRP-users] Re: About Two E320's Synchronization using GPSDO's

On 22/04/2024 10:56, David Raeman via USRP-users wrote: Hello, I am also using multiple distributed E320s for an application that uses the integrated GPSDO to have a common sense of time for precise TOA estimation. I don’t have the measurements at my fingertips at the moment, but I found

[USRP-users] Re: B210 Frequency Stability versus Frequency Accuracy

10 2024 03:01:30 GMT+0100 (British Summer Time), Marcus D. Leech wrote: -- Original Message -- On 09/04/2024 21:48, John Ackermann N8UR via USRP-users wrote: > I'm not sure about this particular unit, but typically if a crystal > oscillator datasheet

[USRP-users] Re: B210 Frequency Stability versus Frequency Accuracy

On 09/04/2024 21:48, John Ackermann N8UR via USRP-users wrote: I'm not sure about this particular unit, but typically if a crystal oscillator datasheet lists an "accuracy" specification, that is over a time period that takes into account the long-term frequency drift ("aging") that affects

[USRP-users] Re: B210 Frequency Stability versus Frequency Accuracy

The frequency of any synthesized radio is directly related to accuracy and stability of the reference clock. If the ref clock is accurate to 2PPM then the accuracy of the tuned carrier frequency will 2PPM. Not an expert on 5G but many mobile phone systems require high frequency accuracy and

[USRP-users] Re: USRP N321 - Dropped packets

On 25/03/2024 10:05, DOR-ISAAC SHABTAY wrote: Hi, I'm using usrp N321 to sample data at IQ rate of 250 MSPS. I have dropped packets. sync; sudo nice -n -20 /usr/lib/uhd/examples/rx_samples_to_file --freq 1e9 --rate

[USRP-users] Re: X310 Twinrx matlab issue

On 16/03/2024 19:07, ali.mah...@brunel.ac.uk wrote: Dear all, I have been using X310 (two SBXs) to run a matlab example with no issues. Recently we bought another X310 (two Twinrxs) to run the same matlab code (using the same machine), however, I have been facing some issues. I had to

[USRP-users] Re: NI 2944 to USRP X310

On 14/03/2024 12:56, Jim Grubb via USRP-users wrote: I have an NI 2944 which I would like to use with gnu radio. I found the kb article describing how to load the X310 FPGA image here: https://kb.ettus.com/Running_UHD_and_GNU_Radio_on_NI_USRP-RIO I’d like to know how to find the IP address

[USRP-users] Re: Extending duration of high-rate captures with the X410

ance.  Also, you can take your RAM FS size higher from 8G to probably 60G if you want to try bigger recording depths. Rob On Tue, Mar 12, 2024 at 5:13 PM Marcus D. Leech wrote: On 12/03/2024 16:11, zackk...@utexas.edu wrote: Hey Rob and Marcus, Thanks

[USRP-users] Re: Extending duration of high-rate captures with the X410

On 12/03/2024 16:11, zackk...@utexas.edu wrote: Hey Rob and Marcus, Thanks for the responses! I have a basic understanding of linux, but am not very experienced. I tried the following to create the RAM filesystem: |sudo mount -t tmpfs -o size=8G tmpfs /mnt/tmpfs/| |sudo mount -t ramfs -o

[USRP-users] Re: Extending duration of high-rate captures with the X410

On 12/03/2024 15:39, Rob Kossler via USRP-users wrote: Hi Zack, I would not count on equal performance between saving to a RAM file system versus allocating your own buffers, but I don't know the reason. I think it is worth a try to configure as large a RAM file system as you can and run

[USRP-users] Re: Power related issues with the USRP X300

On 12/03/2024 11:35, Abhiram Prakash Alamuri wrote: I've been using the USRP successfully for a while now but all of a sudden, I receive the message, "RuntimeError: RuntimeError: Attempting to set power for key x3xx_pwr_basicrx_rx_b, but no cal data available!". Pretty much stuck at this

[USRP-users] Re: Non-Unique Device MAC Address's After Mender F.S. Update

On 11/03/2024 11:42, edenmclaughlin...@gmail.com wrote: Hi, We had a need for a multiple device - single subnet setup. After updating multiple E320’s to a newer UHD version, me and my colleague, we realized that all of the devices share a common MAC address. This results in unstable

[USRP-users] Re: X310

On 06/03/2024 13:56, ygurupra...@umass.edu wrote: Could some help me if this is working as expected? ./bin/txrx_loopback_to_file --tx-args addr=192.168.10.2 --rx-args addr=192.168.10.2 --tx-rate 100e6 --rx-rate 6.5e6 --tx-freq 20e6 --rx-freq 18e6 Creating the transmit usrp device with:

[USRP-users] Re: B210: transmit without streaming?

On 05/03/2024 07:28, Erik Heinz wrote: Hi, I would like to know if it is possible to trick a B210 into sending a continuous RF signal without streaming, by providing a DC from the DACs. Since sending a constant stream does work (e.g. with tx_waveforms), this should in principle be possible.

[USRP-users] Re: E310 cable for GPIO connector

On 25/02/2024 16:34, Ray Roberge via USRP-users wrote: Ethan, I could never find any pre-wired cable assemblies for the E310 connector, but the housing and female pins are cheaply available: DF20A-10DS-1C HousingDigikey P/N: H3143-ND $0.30 each DF20F-2830SCFA

[USRP-users] Re: E310 cable for GPIO connector

On 24/02/2024 21:11, Ethan C wrote: Hello all, I am looking for the part number for the GPIO connector (J12) on an E310. So that I may buy a cable to connect to it. I can't find any information online nor on the physical connector itself on the E310 I have. Thanks, Ethan VA7MNK

[USRP-users] Re: Compatibility of NI USRP 2943R RF daughterboard (CBX-40) with Ettus N210 product

On 21/02/2024 03:00, hoosa...@hotmail.com wrote: I own a National Instruments USRP 2943R, equipped with two Ettus CBX-40 daughter boards, which I used for LabVIEW academic work. I'm now interested in purchasing an Ettus N210 for GNU Radio applications. I’m thinking of borrowing one of these

[USRP-users] Re: Running uhd 4.1 and still having the issue

s 001 Device 006: ID 046d:c05a Logitech, Inc. M90/M100 Optical Mouse Bus 001 Device 004: ID 05e3:0610 Genesys Logic, Inc. Hub Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. Hub Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Sent from iCloud On Feb 19, 2024, at 8:51 AM, Mar

[USRP-users] Re: Running uhd 4.1 and still having the issue

1 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Sent from iCloud On Feb 19, 2024, at 8:51 AM, Marcus D. Leech wrote: On 19/02/2024 11:27, Jim Grubb wrote: Unfortunately, the new Y cable did not resolve the issue.  I’m not sure what else to try. Could you share the output of: ls

[USRP-users] Re: Running uhd 4.1 and still having the issue

you've tried the "Y" cable, if it still doesn't work then we might be dealing with   broken hardware. On Feb 17, 2024, at 6:57 PM, Marcus D. Leech wrote: On 17/02/2024 21:44, Jim Grubb wrote: I was able to get UHD 4.1.0.5-3 installed after removing the ppa.  Unfortunately I'm sti

[USRP-users] Re: Running uhd 4.1 and still having the issue

On 17/02/2024 21:44, Jim Grubb wrote: I was able to get UHD 4.1.0.5-3 installed after removing the ppa.  Unfortunately I'm still running into a problem. Any ideas would be appreciated. Thanks j jim@pop-os:/usr/lib/uhd/utils$ uhd_find_devices [INFO] [UHD] linux; GNU C++ version 11.2.0;

[USRP-users] Re: Running uhd 4.1 and still having the issue

On 17/02/2024 21:44, Jim Grubb wrote: I was able to get UHD 4.1.0.5-3 installed after removing the ppa.  Unfortunately I'm still running into a problem. Any ideas would be appreciated. Thanks j jim@pop-os:/usr/lib/uhd/utils$ uhd_find_devices [INFO] [UHD] linux; GNU C++ version 11.2.0;

[USRP-users] Re: Problem getting USRP B205mini-i running

On 17/02/2024 20:58, Jim Grubb wrote: This part I’m a bit confused on. I added the ettus repository which has earlier versions of libuhd, but only has the 4.6 version of uhd-tools. If I try to install one of the earlier versions of libuhd with the 4.6 uhd-tools, it causes a conflict and

[USRP-users] Re: Problem getting USRP B205mini-i running

On 16/02/2024 20:17, Jim Grubb via USRP-users wrote: Thanks for your response Muhammad, I just installed the software on a fresh Ubuntu 22.04 machine and followed the directions on the ettus web site to get things up and running.  I'm afraid I have very little experience with gnuradio and am

[USRP-users] Re: Problem getting USRP B205mini-i running

On 16/02/2024 19:30, Jim Grubb via USRP-users wrote: When I run: uhd_find_devices I get: [INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400; UHD_4.6.0.0-0ubuntu1~jammy1 -- -- UHD Device 0

[USRP-users] Re: EXTERNAL: Re: GNURadio MPM major compat number mismatch after update to UHD 4.6

content. You need to install a new image on your USRP via mender or manually. I had to do this recently to fix the same issue. See "updating filesystems with mender" in the docs.  Ryan From: Steve Hamn Sent: Thursday, February 15, 2024 3:20 AM To: Marcus D. Leech Cc:

[USRP-users] Re: GNURadio MPM major compat number mismatch after update to UHD 4.6

On 15/02/2024 04:03, Steve Hamn wrote: Hello, I updated my N320 to UHD 4.6, however now I am getting an error in GNURadio: "/RuntimeError: RuntimeError: MPM major compat number mismatch. Expected: 4.2 Actual: 5.3. Please update the version of MPM on your USRP device./" Any suggestions on

[USRP-users] Re: Can't set gain on N200

Are you seeing the same error on Windows and Linux? Sent from my iPhone > On Feb 13, 2024, at 1:00 PM, jnu...@cud.uvigo.es wrote: > >  > WBX on a N200 > > ___ > USRP-users mailing list -- usrp-users@lists.ettus.com > To unsubscribe send an email to

[USRP-users] Re: Can't set gain on N200

What daughter card do you have installed ? Sent from my iPhone > On Feb 13, 2024, at 11:22 AM, jnu...@cud.uvigo.es wrote: > >  > I am using an up-to-date version of Radioconda, both in Windows and Linux. > Binary files (like rx_samples_to_file) are distributed with Radioconda and > compiled

[USRP-users] Re: Can't set gain on N200

On 13/02/2024 05:12, jnu...@cud.uvigo.es wrote: I’am trying to capture a signal file using /rx_samples_to_file/ which feeds input RX2 on my N200 with this command: rx_samples_to_file --duration 30 --rate 100 --freq 1 --stats --progress --ant RX2 --gain 30 Execution, throws

[USRP-users] Re: USRP B205 mini as a transmitter

On 12/02/2024 11:42, Muhammad Hassan wrote: Hi everybody, I am using SURP b205 as transmitter. I am trying to transmit pulse. I get following error. can anybody help. I am new user. Error:Error reported by S-function 'usrp_interface_sfuntx' in 'untitled/SDRu

[USRP-users] Re: X310/UBX Tx tuning issue introduced UHD 4.4?

On 09/02/2024 09:07, Rob Kossler via USRP-users wrote: This is fixed in 4.5 and 4.6.  Are you able to switch? Rob I'll add that it's unlikely for the fix to get back-ported to 4.4 at this point. On Fri, Feb 9, 2024 at 5:04 AM wrote: Hi, I am facing the same problem. I am on

[USRP-users] Re: Align multi-channel captures with different rx_stremers

On 06/02/2024 17:23, zackk...@utexas.edu wrote: If I do thing concurrently (same thread, same rx_streamer) would that solve the timing issue? For example: |stream_args.channels = { 0, 1};| |uhd::rx_streamer::sptr rx_stream = usrp_->get_rx_stream(stream_args);| |…| |size_t num_rx_samps =| |   

[USRP-users] Re: Align multi-channel captures with different rx_stremers

On 06/02/2024 17:04, zackk...@utexas.edu wrote: Hello! I am trying to do something very similar to the rx_samples_to_file example here . In this script, if multithreading is selected, then a different

[USRP-users] Re: Multiple USRP-2901 reference signal sync problem with gnuradio

Multi device synchronization isn’t supported on 2901. Sharing the minimal flow graph that shows your error issue would be useful. Sent from my iPhone > On Feb 5, 2024, at 9:24 PM, Ramesh, Eshan wrote: > >  > Hi, > > I'm trying to use a common reference signal to sync two > USRP-2901s. I'm

[USRP-users] Re: x310 USRP -- Performance questions

On 29/01/2024 12:20, Arnaldo Sans wrote: Hello Marcus, Thank you for your quick response... I am attaching a pdf of the email because I suspect that my screenshots are not making -it to you. Here are the TX and RX graphs available on the Ettus URL I mentioned in my initial email... Below

[USRP-users] Re: Getting Dropped packets

On 24/01/2024 18:13, jmalo...@umass.edu wrote: I do still find it peculiar that the returned value of recv() when data is dropped is less than the buffer size, then immediately returns 0 the next time its called. Going through the source code I could see why it returns a value smaller than

[USRP-users] Re: Getting Dropped packets

On 24/01/2024 16:11, Rob Kossler wrote: Hi Joe, I noticed that you have 128GB RAM. If you turn this into a 120GB RAM drive, is this sufficient memory depth for your needs? If this is possible, there is a good chance it will solve your issue. Prior to DPDK, I tried to save to fast SSD and I

[USRP-users] Re: Getting Dropped packets

On 24/01/2024 13:00, jmalo...@umass.edu wrote: Hello, I currently have an application where I am burst receiving(about 80 micro per milli second) with the ettus X410 at the full sample rate across 4 channels. I am getting occasional issues where data is dropped (terminal messages show “D”

[USRP-users] Re: Bug/problem aligning PPS to samples

essing, so the TRIG OUT may have been "massaged"   by the FPGA. On Thu, Jan 18, 2024, 08:06 Marcus D. Leech wrote: On 18/01/2024 02:24, Steve Hamn wrote: Hi Marcus, Do you know what the Pulse Width of the PPS in the N3XX GPSDO is? (I.e. how much time differen

[USRP-users] Re: Synchronize UBX-40 v1 Vs WBX-v3 + simple GDB

On 18/01/2024 03:25, je.amg...@gmail.com wrote: Hi, The R generator and the USRP device are synchronized through a 10 MHz reference signal. The transmitter (Tx) emits a pure sine wave at the carrier frequency F0 + 10KHz. The receiver (Rx) in GNURadio operates at F0 and is externally

[USRP-users] Re: Bug/problem aligning PPS to samples

using UHD 4.4 so I'm wondering if this could be a cause? Thanks, Steve I don't know off the top of my head.   Update host and radio to UHD4.5 or 4.6 and try again? On Wed, Jan 17, 2024, 13:47 Marcus D. Leech wrote: On 16/01/2024 12:10, Eugene Grayver wrote: Hi

[USRP-users] Re: Bug/problem aligning PPS to samples

On 15/01/2024 20:05, Rob Kossler via USRP-users wrote: Hi Eugene, Are you expecting that the RF output (for Tx case) should be synced to the PPS "at the RF output connector"?  It is my understanding that the sync occurs at some place in the FPGA logic for the "radio" block. There will be

[USRP-users] Re: Bug/problem aligning PPS to samples

On 16/01/2024 12:10, Eugene Grayver wrote: Hi, There should be some delay, but it should be on the order of a few clock cycles (ADC/DAC latency).  For the N321 we are observing 100us, corresponding to ~2000 samples.  The X310 delay is ~1us, which corresponds to 20 samples.  Still a lot

[USRP-users] Re: Synchronize UBX-40 v1 Vs WBX-v3 + simple GDB

On 17/01/2024 04:57, je.amg...@gmail.com wrote: Hi, I am currently conducting frequency synchronization tests on two USRP X310 devices, each equipped with different daughterboards – the first with a UBX-40 v1 Dboard and the second with a WBX-v3 simple GDB Dboard. In my setup, I am using an R

[USRP-users] Re: Bug/problem aligning PPS to samples

On 16/01/2024 12:10, Eugene Grayver wrote: Hi, There should be some delay, but it should be on the order of a few clock cycles (ADC/DAC latency).  For the N321 we are observing 100us, corresponding to ~2000 samples.  The X310 delay is ~1us, which corresponds to 20 samples.  Still a lot

[USRP-users] Re: E320 Full Enclosed Serial Console [EXTERNAL]

v/ttyUSB0 and /dev/ttyUSB1. Modern Linux systems (like latest Ubuntu) will automatically put your ordinary user in group "dialout", and the rules for   serial ports will make the ports owned by group "dialout' so you won't need root privileges to access them from "screen&qu

[USRP-users] Re: E320 Full Enclosed Serial Console [EXTERNAL]

On 10/01/2024 16:56, Jimenez, Samuel wrote: Hello and thank you for the prompt reply. I see ttyUSB0 and ttyUSB1 but they are pointing to “Digilent” ports as shown below. “ ls -l /dev/serial/by-id/usb-Digilent_Digilent_USB_Device_2516351E882F-if0* lrwxrwxrwx 1 root root 13 Jan 10 16:49

[USRP-users] Re: E320 Full Enclosed Serial Console

On 10/01/2024 16:39, Jimenez, Samuel via USRP-users wrote: Hi, I have an Full Enclosed E320 and wish to access serial console to the STM32 microcontroller as well as the CPU. When I connect the USB-A to micro cable, I see the following in Linux (Ubuntu 16.04):

[USRP-users] Re: [WARNING] [DPDK::IO_SERVICE] Dropping packet: No link entry in rx table, Lookup error

On 03/01/2024 15:18, jmalo...@umass.edu wrote: Hello, I am currently trying to use DPDK, however, there is an error I currently am unable to resolve. |./benchmark_rate --rx_rate 245.76e6 --rx_channels 0 --tx_rate 245.76e6 --tx_channels 0 --args "addr=192.168.10.2,use_dpdk=1"| |[INFO]

[USRP-users] Re: Strange interference

On 26/12/2023 06:43, Francisco Gallardo lópez wrote: Hi all, I am seeing a quite strange pattern in an USRP B210, and I am trying to figure out what it is. Right now this is more like an academic investigation, as this is not causing malfunctions, but it got my attention. So, from time to

[USRP-users] Re: Benchmarking x410 with Mellanox with DPDK

On 20/12/2023 17:49, jmalo...@umass.edu wrote: In the past when I collected data from the x410 without DPDK, it would work just fine to use solely 1 network port. I tried using the management address now, but I still get errors, but it is slightly different. Notably there is not a “no

[USRP-users] Re: Change UHD Version

On 14/12/2023 19:21, Anil Gurses via USRP-users wrote: It fails when I was trying it. Can you give more information? What is the exact error? Did you have to delete the build folder then recreate it for a successful installation? You can try deleting and recreating it again. It

[USRP-users] Stepping back for a bit.

Long-term denizens of this mailing list will know that I have been involved with this mailing list since its inception.  For 14 of   those years, I have had a small contract with Ettus/NI/Emerson to provide support both on this list and through other   support channels at NI. Some of you may

[USRP-users] Re: TwinRX Performance data

On 13/12/2023 05:33, Leon Wabeke wrote: Hi I see for the X310 RF daughterboards there are RF performance data available here: https://files.ettus.com/performance_data/ And for the B210 there is similar data available here: https://kb.ettus.com/B200/B210/B200mini/B205mini#B200_.2F_B210

[USRP-users] Re: Read user registers with RFNoC

On 12/12/2023 09:41, mamuk...@gmail.com wrote: Hi Marcus, Thanks for your answer. So, there shouldn’t be any problem on the UHD side with the reading, is a gnuradio thing, right? From what I see on the Python code generated for the Function Probe, it calls the “get_int_property” register

[USRP-users] Re: Benchmark problems with USRP B210

On 12/12/2023 07:03, Sachin Gupta wrote: Dear Forum members, I am trying to run an OAI 5G UE Simulator using USRP B210. The gNB configuration that is planned to be used is DL 2x2 MIMO mode and 20 MHz system bandwidth. Due to this I am trying to use benchmark_rate application to see if my UE

[USRP-users] Re: USRP Python repeat scheduling with 1 pps synchronisation

On 12/12/2023 07:59, drtay...@manx.net wrote: Hi everyone. I am trying to run a python script that has been generated for convenience using the non-GUI GRC option. (3.9.5.0) (Python 3.10.12) The script sends a short (~300 ms) finite sequence of samples as ranging code to a satellite and

[USRP-users] Re: Surge protection of N210

On 12/12/2023 08:05, Martin Søndergaard via USRP-users wrote: Hi everyone. We have an N210 which we use in the following setup: Antenna -> LNA -> Surge protector -> Bias-T -> SDR (N210) We are using Polyphaser GTH-NFF-AL protectors for the surge protection. According to the documentation

[USRP-users] Re: USRP N310 no device found

On 11/12/2023 10:52, purva.jo...@phd.unipi.it wrote: Hi Marcus, Kindly check here. lsblk NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT loop0 7:0 0 4K 1 loop /snap/bare/5 loop1 7:1 0 63,3M 1 loop /snap/core20/1828 loop2 7:2 0 46M 1 loop /snap/snap-store/638 loop3 7:3 0 49,9M 1 loop

[USRP-users] Re: Looking for help probing N310 with newer version of UHD

On 08/12/2023 14:40, Jack Gallegos wrote: I am trying to figure out why I cannot initialize an N310 from my host (UHD 4.6, Ubuntu 20.04). I get the following when I try to run uhd_usrp probe: $ uhd_usrp_probe [INFO] [UHD] linux; GNU C++ version 11.4.0; Boost_107400;

[USRP-users] Re: No module named 'uhd'

On 06/12/2023 11:45, engr.muhd.has...@gmail.com wrote: Hi I am getting the same error when i am trying to run “rfnoc_image_builder” command. could you please tell me how to resolve this issue. as i am new researcher in this feild We're going to need many more details.  A complete error-log

[USRP-users] Re: USRP N310 no device found

On 06/12/2023 11:29, purva.jo...@phd.unipi.it wrote: You are right Marcus, I just messed up my boot partition, but I am not able to fix this issue, I need to wait for the system manager to solve this stuff. I know it is nothing related to UHD. But how to find the right device if I want to

[USRP-users] Re: USRP N310 no device found

On 06/12/2023 11:17, purva.jo...@phd.unipi.it wrote: Dear Marcus, Many thanks. When I tried to update the image to my SD card on my host PC, my PC stopped working as it showed me an error for BIOS UEFI Utility boot mode. Once, I will fix this bug, I will try your solution and Let you know

[USRP-users] Re: USRP N310 no device found

On 06/12/2023 04:41, purva.jo...@phd.unipi.it wrote: Dear Marcus, Here, there is one issue, I tried everything to solve the error. May be you can help me to solve the problem. “Error: rpc::timeout: Timeout of 2000ms while calling RPC function 'set_device_id' Kindly help me in this issue.

[USRP-users] Re: USRP N310 no device found

On 05/12/2023 05:55, purva.jo...@phd.unipi.it wrote: Many many thanks Marcus. You are really great. I can find my device. Glad it worked out for you. The output of “uhd_find_devices” is [INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501; UHD_4.0.0.0-240-gb38c9d83

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