Re: [Discuss-gnuradio] USRP2 reference clock

Hi Nils, So, could you share your flow graph, or a sketch of it? Especially (asked you on SO, too): Do you use one uhd_usrp_source, or two? And: how do you tell the source(s) which USRP to use? To answer the easy-to-answer questions right now: > Is it possible to set the master clock at the USRP

[Discuss-gnuradio] USRP2 reference clock

Dear Sir or Madam, At present I work with 2 different USRPs. One of this is the USRP2 and the another one a newer device is the X300. This devices communicate each about QPSK and a test algorithm. For the USRP2 I use the reference input and use reference clock output from the x300 device to com

[Discuss-gnuradio] USRP2 + WBX: Half Duplex

: "Martin Braun" Cc: discuss-gnuradio@gnu.org Betreff: Re: [Discuss-gnuradio] USRP2 + WBX: Half Duplex On 02/26/2016 12:58 PM, Martin Braun wrote: Everyone who implements half duplex modems runs into this issue sooner or later. A simple fix is to catch this in software, e.g. On yo

Re: [Discuss-gnuradio] USRP2 + WBX: Half Duplex

On 02/26/2016 12:58 PM, Martin Braun wrote: Everyone who implements half duplex modems runs into this issue sooner or later. A simple fix is to catch this in software, e.g. On your Mac layer by filtering for your own transmit Mac address (or whatever equivalent you have in your protocol). You

Re: [Discuss-gnuradio] USRP2 + WBX: Half Duplex

Everyone who implements half duplex modems runs into this issue sooner or later. A simple fix is to catch this in software, e.g. On your Mac layer by filtering for your own transmit Mac address (or whatever equivalent you have in your protocol). You can also cache the timestamps of your tx packets

Re: [Discuss-gnuradio] USRP2 + WBX: Half Duplex

On 02/26/2016 07:00 AM, Alex Weihkopf wrote: Hello, I am using two USRP2 + WBX connected via cable on the TX/RX antenna ports. I want to use them for my GNURadio OFDM-project in half-duplex mode. *Problem*: Whenever I send a data-packet (~10ms) on the TX-chain of one USRP2, I receive the same

[Discuss-gnuradio] USRP2 + WBX: Half Duplex

Hello,   I am using two USRP2 + WBX connected via cable on the TX/RX antenna ports. I want to use them for my GNURadio OFDM-project in half-duplex mode.   Problem: Whenever I send a data-packet (~10ms) on the TX-chain of one USRP2, I receive the same packet on the RX-chain of the same USRP2. Th

Re: [Discuss-gnuradio] USRP2

On 02/25/2016 05:02 PM, Nour Alharithi wrote: Thank you both for your help. Deviating from the old gnuradio version was definitely the right call. As an additional question, I am attempting to import the usrp2 python package. I seem to have gotten the correct files, but now when attempting to

Re: [Discuss-gnuradio] USRP2

Thank you both for your help. Deviating from the old gnuradio version was definitely the right call. As an additional question, I am attempting to import the usrp2 python package. I seem to have gotten the correct files, but now when attempting to run my script, I keep getting the error “libgn

Re: [Discuss-gnuradio] USRP2

Hello Nour, That page is wildly out of date. Please *do not* install GNU Radio 3.4.2! It is very old and your experience trying to get it working with the up to date USRP driver code, UHD, will be painful. What Linux OS are you using? If you are using an Ubuntu, CentOS, Fedora, or possible Debian

Re: [Discuss-gnuradio] USRP2

Hi, What errors have you seen with make? For an easier way, you might try using a Docker image, which simplified the installation process for me. After installing Docker, you only need to download and run an image, which has the software and all of its dependencies already built. Here is an image

[Discuss-gnuradio] USRP2

Hello, I am attempting to install USRP2 for gnuradio (I am on a Linux system). The instructions given in the gnuradio instructions pag e appear to be broken, where upon trying run “make” to install gnuradio version 3.4.2

Re: [Discuss-gnuradio] USRP2/Gnuradio - satellite application

Hi, @Marcus : Yes I have already the formulas ad now trying to implement in C++. The problem I have is I need the output from the "USRP source" as number for instaance and then apply formuas and again show it in time axis. I will go back again to the s first chapter maybe I miss something. @Sylvai

Re: [Discuss-gnuradio] USRP2/Gnuradio - satellite application

Hi, > The problem I have is when using the blocks in gnuradio how to retrieve the > signal power You mean you want the signal power as a dBm value ? Just won't happen ... Too many things in the chain, you'd have to calibrate it for a specific freq / board / gain / temp / phase of the moon / ...

Re: [Discuss-gnuradio] USRP2/Gnuradio - satellite application

Hi Abdeslam, I assume you already have definite formulas that define the estimator for these two numbers. Unless you can directly "click together" that estimator in GRC, you will most likely have to implement it. In many cases, doing this in Python is rather easy (especially if you come from a pyt

[Discuss-gnuradio] USRP2/Gnuradio - satellite application

Good evening, I will appreciate your help and guidance. since 3 weeks I'm trying to implement an application to derive the sky noise and attenuation from a beacon satellite signal. Using gnuardio and USRP2 (Ettus N210) I'm able to receive the and see the beacon signal at a defined frequency (FF

[Discuss-gnuradio] USRP2 and UHD 3.8.3

Dear USRP2 users, (*Note:* this does not affect N2x0, or any other device! Only USRP2, with the SD-Card). The latest release (3.8.3) has an issue where UHD won't let you use USRP2s. Apologies for missing that during testing and RC phases. Latest maint (and master) contain a fix for this, and futu

Re: [Discuss-gnuradio] USRP2 video transmission

Hi Zeeshan, If you attach your code I can take a look for you. Assuming you have 2 x USRP2, have you tried a MIMO cable/10MHz clock source to synchronise clocks between transmitter and receiver? Regards, Mike -- Mike Jameson M0MIK BSc MIET Ettus Research Technical Support Email: supp...@ettus.

[Discuss-gnuradio] USRP2 video transmission

Hi, Hope everything is perfect for you. I'm doing a project on GNU radio, transmitting and receiving a video. It works fine in simulation ( GNU radio ), but when I attach USRP2, I't isn't receiving any thing. I'm using Gstreamer with GNU radio.      Zeeshan Hayat Department of Electrical Enginee

[Discuss-gnuradio] USRP2 video transmission

Hi, Hope everything is perfect for you. I'm doing a project on GNU radio, transmitting and receiving a video. It works fine in simulation ( GNU radio ), but when I attach USRP2, I't isn't receiving any thing. I'm using Gstreamer with GNU radio.      Zeeshan Hayat Department of Electrical Enginee

[Discuss-gnuradio] USRP2 plus WBX for sale

I have a USRP2 plus WBX in excellent working condition for sale. I am asking $975 which includes shipping anywhere in continental US.___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] USRP2 kit is not detected by desktop's ethernet port at all

Swrangsar, For checking desktop's ethernet interface speed u can use ethtool sudo apt-get install ethtool ethtool eth0 -Adeel On Fri, May 24, 2013 at 1:10 PM, swrangsar basumatary wrote: > Hi, > > We installed the latest UHD-003.005.003 with gnuradio-3.6.4.1 on a 32-bit > PC running Ubuntu 11

Re: [Discuss-gnuradio] USRP2 kit is not detected by desktop's ethernet port at all

: [Discuss-gnuradio] USRP2 kit is not detected by desktop's ethernet port at all Hi, We installed the latest UHD-003.005.003 with gnuradio-3.6.4.1 on a 32-bit PC running Ubuntu 11.04, but the USRP2 kit is just not getting detected (the green LED near the ethernet port of the USRP2 kit does not

[Discuss-gnuradio] USRP2 kit is not detected by desktop's ethernet port at all

Hi, We installed the latest UHD-003.005.003 with gnuradio-3.6.4.1 on a 32-bit PC running Ubuntu 11.04, but the USRP2 kit is just not getting detected (the green LED near the ethernet port of the USRP2 kit does not glow). We even tried gnuradio-3.6.0 and UHD-003.005.002 yet there is no change at a

Re: [Discuss-gnuradio] USRP2 + WBX for DVB-T replaying

Thanks for the info I do need it to be real time actually Doable. As for your concerns about the Emm. All I need to do is disable one not edit it, so it's either a re package of the steam or a jam of a specific header. I understand that, but I guess you don't understand the way the multiple str

Re: [Discuss-gnuradio] USRP2 + WBX for DVB-T replaying

Thanks for the info I do need it to be real time actually As for your concerns about the Emm. All I need to do is disable one not edit it, so it's either a re package of the steam or a jam of a specific header. Can you point me to a working dvb-t project? Thanks again On Saturday, May 4, 2013,

Re: [Discuss-gnuradio] USRP2 + WBX for DVB-T replaying

Hi Dino, DVB-T works in the UHF / VHF frequency bands, something you can tune your wbx at without problems. Bandwidth is about 8MHz (if I'm not mistaken), so that's low enough. Since it sounds like you'll be doing stuff offline (not in realtime), processing power is not a factor for your problem,

[Discuss-gnuradio] USRP2 + WBX for DVB-T replaying

Hi there, I have a USRP2 with WBX board which has been sitting around doing nothing. I was wondering if it is possible to use this hardware to get a live DVB-T signal and replay it back. What I want to do is to intercept entitlement management messages and modify/remove them on the fly. Please l

Re: [Discuss-gnuradio] USRP2 IP new address

On 03/08/2013 06:48 AM, guelord ingala wrote: > Hi, > Can you please assist me to change the usrp2 IP address. I went through the > application note. > Method 1 responds that I don't have permission. > > Method 2 goes well loading the new IP address: 192.168.10.3. But when I > checked with u

[Discuss-gnuradio] USRP2 IP new address

Hi, Can you please assist me to change the usrp2 IP address. I went through the application note. Method 1 responds that I don't have permission. Method 2 goes well loading the new IP address: 192.168.10.3. But when I checked with uhd_find_devices, it shows that the IP address has not changed.

Re: [Discuss-gnuradio] usrp2 and B100

Hi, In the literature survey I have seen references to USRP2, but I couldnot find this product on ettus. How different it is from B100. If it is available on ettus.com please mail its web link. Regards G R Begh ___ Discuss-gnuradio mailing list Dis

[Discuss-gnuradio] usrp2 and B100

Hi,In the literature survey I have seen references to USRP2, but I couldnot find this product on ettus. How different it is from B100. If it is available on ettus.com please mail its web link. RegardsG R Begh___ Discuss-gnuradio mailing list Discuss-gnu

[Discuss-gnuradio] USRP2 TX fail

I try SBX and WBX but the result is the same. TX fails and RX succeed. The following is the summary usrp2, operated in gnuradio 3.2.2 with corresponding firmware download from ettus web can TX and RXusrp2, operated in gnuradio 3.6.2 with corresponding firmware download from ettus web can R

Re: [Discuss-gnuradio] USRP2 Reception Problem

On 09/26/2012 01:52 AM, Bilal wrote: > I m using USRP2,I have configured usrp2 and tested > uhd_usrp_probe,uhd_siggen_gui and uhd_fft all works fine. > Now i want to make my own program like uhd_fft but there is a problem that > the terminal prompt returns right after i execute the program with

[Discuss-gnuradio] USRP2 Reception Problem

I m using USRP2,I have configured usrp2 and tested uhd_usrp_probe,uhd_siggen_gui and uhd_fft all works fine. Now i want to make my own program like uhd_fft but there is a problem that the terminal prompt returns right after i execute the program with notification root@aqs-desktop:/home/aqs/Deskto

[Discuss-gnuradio] USRP2

Hello everyone. I'm interested in a USRP2. Anyone want to sell? My email is flx...@yahoo.com Regards Rolando Paz ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

Re: [Discuss-gnuradio] USRP2 BLOCK ERROR IN GNURADIO 3.6.2

On 09/04/2012 12:17 AM, Muhammad JUNAID wrote: > hello All, > dose any one have idea about this error? > i install USRP block in gnuradio 3.6.2 for this file but still have an error. > root@Junaid-VPCF13UFX:/home/muhammadjunaid/airprobe/gsm-receiver/src/python# > ./gsm_receive_usrp2.py > Traceb

Re: [Discuss-gnuradio] USRP2 BLOCK ERROR IN GNURADIO 3.6.2

On Tue, Sep 4, 2012 at 3:17 AM, Muhammad JUNAID wrote: > hello All, > dose any one have idea about this error? > i install USRP block in gnuradio 3.6.2 for this file but still have an > error. > root@Junaid-VPCF13UFX:/home/muhammadjunaid/airprobe/gsm-receiver/src/python# > ./gsm_receive_usrp2.py >

[Discuss-gnuradio] USRP2 BLOCK ERROR IN GNURADIO 3.6.2

hello All, dose any one have idea about this error? i install USRP block in gnuradio 3.6.2 for this file but still have an error. root@Junaid-VPCF13UFX:/home/muhammadjunaid/airprobe/gsm-receiver/src/python# ./gsm_receive_usrp2.py  Traceback (most recent call last):   File "./gsm_receive_usrp2.py",

Re: [Discuss-gnuradio] USRP2 MIMO system implementation

On 08/28/2012 12:19 AM, Pan, Luyuan wrote: > Hello, > I want to implement a MIMO system using USRP2, I just have USRP2s and > MIMO cable. > 1. Do I have to use an external clock source ? No. With the mimo cable, you can share a clock reference between a pair of devices > 2. I searched the maill

[Discuss-gnuradio] USRP2 MIMO system implementation

Hello, I want to implement a MIMO system using USRP2, I just have USRP2s and MIMO cable. 1. Do I have to use an external clock source ? 2. I searched the maillist and found: Each USRP2 can handle 1 antenna with most daughterboards, or 2 if you have your own external RF sections connected to the USR

[Discuss-gnuradio] USRP2 + RFX900 + Antenna Anritsu

I can use the usrp2 + rfx900 Anritsu mark with an antenna with these characteristics? * * Product Description: Portable Antenna, SMA (m), 896-941 MHz, 50 Ohm ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo

Re: [Discuss-gnuradio] usrp2 not transmitting data.

On 27 Jun 2012 13:16, Julio Hector Aguilar Renteria wrote: > Hi, all, > > LED A USRP2 OFF--The module is not transmitting data. > > help... More context would be very helpful. What application are you using? What steps have you taken to debug the problem, and what were the results? ___

[Discuss-gnuradio] usrp2 not transmitting data.

Hi, all, LED A USRP2 OFF—The module is not transmitting data. help... ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] USRP2 Ethernet port does not work

I've been using many USRP2s for my project. Today one of the USRP2s cannot be recognized through Ethernet. Only the green LED on the Ethernet port lights up. I hooked up the Serial debug port and it says, ethernet flow control: SYMMETRIC LANSR: LINK_GOOD ethernet flow control: SYMMETRIC

[Discuss-gnuradio] "USRP2+XCVR2450 TxGain / RxGain meaning"‏

Hello, I'm using the USRP2 board with the daughterboard XCVR2450. As far as I know, the output power of the XCVR2450 is 100mW (20dBm), but I don't understand the meaning of the TxGain and RxGain factor when I use for example tunnel.py. I have been able to identify that the Tx Gain varies between 0

Re: [Discuss-gnuradio] usrp2 not connecting to laptop via ethernet cable

You're using the "classic" API for the USRP2. Which has been obsolete for two years. However, what seems to be going on here is that it can't find a device called "eth0" which is the default device that the "classic" API used to find USRP2s on. You'll also need to make sure that usrp2_socket_

[Discuss-gnuradio] usrp2 not connecting to laptop via ethernet cable

I have recently installed GNU radio on my IBM lenovo machine (intel core i5) with fedora operating system. I am using usrp2 with Ethernet cable. | wanted to connect the laptop with usrp2 but the laptop does not detect the usrp2 box. the icon says connecting rather than connected. I tried to tes

[Discuss-gnuradio] USRP2 FPGA: how to use custom_defs

Hi! I'm planing on adding CUSTOM_DEFS to the USRP2 FPGA image, that I want to extend with custom Verilog modules. (http://code.ettus.com/redmine/ettus/projects/uhd/repository/revisions/master/entry/fpga/README.txt) I want to do this in a minimal invasive way, using some of the Simulink Xilinx dev

Re: [Discuss-gnuradio] USRP2 MATLAB

Hi Kaleem, Am 10.02.2012 10:12, schrieb Kaleem Rana: I am trying to implement a simple spectrum analyzer (based on energy detection) with MATLAB's SDRu package (NOT Simulink!!!). I started with a [...] This is the GNU Radio mailing list, if you are looking for Matlab support try the USRP-u

[Discuss-gnuradio] USRP2 MATLAB

Hello everyone, I am using USRP2 with XCVR2450 daughter card with Windows XP and MATLAB R2011a in 2.4GHz ISM band. I am trying to implement a simple spectrum analyzer (based on energy detection) with MATLAB's SDRu package (NOT Simulink!!!). I started with a demo provided with the SDRu package

[Discuss-gnuradio] USRP2 metric measurement

Hi, I need to measure any metric(say RSSI) of one USRP2 from the other, to implement a selection scheme that selects best USRP2 based on best metric. what best can be measured to estimate the quality of the link. All comments/suggestions are welcome I am using gnuradio 3.5, on fedora 15. USRP2

Re: [Discuss-gnuradio] USRP2 / Tunnel.py packet reflection issue

From: Tuan (Johnny) Ta To: Marcus D. Leech ; david.barto...@yahoo.com Cc: discuss-gnuradio@gnu.org Sent: Monday, October 31, 2011 6:01 PM Subject: Re: [Discuss-gnuradio] USRP2 / Tunnel.py packet reflection issue I have been running into problems using tunnel.py as well so instead of

Re: [Discuss-gnuradio] USRP2 / Tunnel.py packet reflection issue

On 01/11/11 08:02 PM, Tuan (Johnny) Ta wrote: > Thanks for the explanation. I managed to get the system working by > introducing a delay before every packet transmission. I know it's a > hack but that's the quickest method I can think of. The minimum delay > that I can get it to work is 11ms. It se

Re: [Discuss-gnuradio] USRP2 / Tunnel.py packet reflection issue

Thanks for the explanation. I managed to get the system working by introducing a delay before every packet transmission. I know it's a hack but that's the quickest method I can think of. The minimum delay that I can get it to work is 11ms. It seems quite large. Is this reasonable for the turn-aroun

Re: [Discuss-gnuradio] USRP2 / Tunnel.py packet reflection issue

On 10/31/2011 06:40 PM, Tuan (Johnny) Ta wrote: Marcus, What do you mean my zero-stuffing the TX frames? And how would it help with the turn-around time of the XCVR2450 daughterboard? Do you mean I should transmit a zero-filled packet before any real packet, so that the receiving side (A in m

Re: [Discuss-gnuradio] USRP2 / Tunnel.py packet reflection issue

Marcus, What do you mean my zero-stuffing the TX frames? And how would it help with the turn-around time of the XCVR2450 daughterboard? Do you mean I should transmit a zero-filled packet before any real packet, so that the receiving side (A in my scenario) has time to switch back to receiving befo

Re: [Discuss-gnuradio] USRP2 / Tunnel.py packet reflection issue

On 10/31/2011 06:01 PM, Tuan (Johnny) Ta wrote: I have been running into problems using tunnel.py as well so instead of creating a new post I thought I'll just continue this thread. My setting: USRP2 XCVR2450 Ubuntu 10.04 (32bit) The problem I have is that after running tunnel, whenever I do p

Re: [Discuss-gnuradio] USRP2 / Tunnel.py packet reflection issue

I have been running into problems using tunnel.py as well so instead of creating a new post I thought I'll just continue this thread. My setting: USRP2 XCVR2450 Ubuntu 10.04 (32bit) The problem I have is that after running tunnel, whenever I do ping, my system gets stuck on the ARP exchange. Say

Re: [Discuss-gnuradio] USRP2 / Tunnel.py packet reflection issue

On 20/10/2011 10:25 AM, David Barton wrote: I have been troubleshooting an issue with possible packet relflections and cannot figure out the cause. I am running tunnel.py on two USRP2s that are cabled together with a 20dB attenuator between them. The settings I am using on both sides for tunnel

[Discuss-gnuradio] USRP2 / Tunnel.py packet reflection issue

  I have been troubleshooting an issue with possible packet relflections and cannot figure out the cause. I am running tunnel.py on two USRP2s that are cabled together with a 20dB attenuator between them. The settings I am using on both sides for tunnel.py are:   Tx Gain: 15 dB Rx Gain: 10 dB Ca

Re: [Discuss-gnuradio] Usrp2+Wbx firmware issue

Because programs written for UHD and and raw ethernet drivers are not compatible with each other. usrp2_probe works only with raw ethernet drivers while uhd_find_devices works only when UHD is on your SD card. In case of UHD thing on your SD card the uhd_fft.py shd work fine. If you are using

Re: [Discuss-gnuradio] Usrp2+Wbx firmware issue

Because programs written for UHD and and raw ethernet drivers are not compatible with each other. usrp2_probe works only with raw ethernet drivers while uhd_find_devices works only when UHD is on your SD card. In case of UHD thing on your SD card the uhd_fft.py shd work fine. If you are using T

Re: [Discuss-gnuradio] usrp2 on windows - network cable unplugged

> -Original Message- > From: Marcus D. Leech [mailto:mle...@ripnet.com] > Sent: Thursday, 18 August 2011 2:16 PM > To: Kyle Zhou > Cc: discuss-gnuradio@gnu.org > Subject: Re: [Discuss-gnuradio] usrp2 on windows - network cable > unplugged > > On 08/18/201

Re: [Discuss-gnuradio] usrp2 on windows - network cable unplugged

On 08/18/2011 12:09 AM, Kyle Zhou wrote: > > Yes, I did configured it as static IP 192.168.10.1 > Actually windows did show 'connected, firewalled'. but after a few > seconds, it turned to unplugged. This is weird to me. Well, if it really is configured for a static IP, you might see if there's a w

Re: [Discuss-gnuradio] usrp2 on windows - network cable unplugged

On 18 August 2011 13:29, Marcus D. Leech wrote: > ** > On 08/17/2011 11:19 PM, Kyle Zhou wrote: > > I tried to use usrp2 on windows with the newest sd card image. Worked on > ubuntu. > > But on windows, when I plug in the Ethernet cable and the power, initially > windows shows acquiring netw

Re: [Discuss-gnuradio] usrp2 on windows - network cable unplugged

On 08/17/2011 11:19 PM, Kyle Zhou wrote: > > I tried to use usrp2 on windows with the newest sd card image. Worked > on ubuntu. > > But on windows, when I plug in the Ethernet cable and the power, > initially windows shows acquiring network address, connected > firewalled. After a few seconds, (I t

Re: [Discuss-gnuradio] usrp2 on windows - network cable unplugged

On 08/17/2011 08:19 PM, Kyle Zhou wrote: > I tried to use usrp2 on windows with the newest sd card image. Worked on > ubuntu. > > But on windows, when I plug in the Ethernet cable and the power, initially > windows shows acquiring network address, connected firewalled. After a few > seconds, (I

[Discuss-gnuradio] usrp2 on windows - network cable unplugged

I tried to use usrp2 on windows with the newest sd card image. Worked on ubuntu. But on windows, when I plug in the Ethernet cable and the power, initially windows shows acquiring network address, connected firewalled. After a few seconds, (I think it is when the image has been loaded from sd card

Re: [Discuss-gnuradio] USRP2 and UHD

Thank you two for the prompt reply. I had forgotten to set the static IP address and once I did the problem resolved. Thank you again Brenden On Wed, Aug 10, 2011 at 11:54 AM, Matthias Wilhelm < wilh...@informatik.uni-kl.de> wrote: > Am 10.08.2011 um 18:13 schrieb Brenden Smith: > > > Hello list,

Re: [Discuss-gnuradio] USRP2 and UHD

Am 10.08.2011 um 18:13 schrieb Brenden Smith: > Hello list, > > I just burned the latest UHD firmware onto the SD card I am using with my > USRP2, and when I use the "uhd_find_devices" command I am told that no > devices are found. Previously I had been using the stock firmware and I could > f

Re: [Discuss-gnuradio] USRP2 and UHD

On 08/10/2011 09:13 AM, Brenden Smith wrote: > Hello list, > > I just burned the latest UHD firmware onto the SD card I am using with my > USRP2, and when I use the "uhd_find_devices" command I am told that no > devices are found. Previously I had been using the stock firmware and I > could find

[Discuss-gnuradio] USRP2 and UHD

Hello list, I just burned the latest UHD firmware onto the SD card I am using with my USRP2, and when I use the "uhd_find_devices" command I am told that no devices are found. Previously I had been using the stock firmware and I could find the USRP2 by using the 'find_usrps' command. When I use th

Re: [Discuss-gnuradio] USRP2 Spectrum Sensing Help

hello, how you did it, that changed in the sensing spectrum, I'm using the module FLEX900? devin kelly-2 wrote: > > Hello, > > I've created a spectrum sensor with the USRP2, my python script uses the > same idea as usrp_spectrum_sense.py found in gnuradio. That is, it tunes, > takes an FFT,

Re: [Discuss-gnuradio] USRP2 and USRP N200 broke after UHD?

> I just built this today and I see there was new release yesterday so > maybe I shouldn't be going from source. Maybe there's apt-get that has > uhd for USRP N200? Otherwise, any help to resolve the uhd issue is > appreciated. Thanks > Both of these errors are related to some bug in ubuntu 10.0

[Discuss-gnuradio] USRP2 and USRP N200 broke after UHD?

I had my USRP2 running usrp2_fft fine for awhile although it was crashing frequently in my ubuntu 10.04LTS VM. I then tried to get our new N200 working which requires UHD so I used the build script at: http://www.sbrac.org/files/build-gnuradio I think the rebuild went okay though not sure I shoul

Re: [Discuss-gnuradio] USRP2's FPGA resources

On 19/07/2011 12:00 PM, Eduardo Lloret Fuentes wrote: Hello, I would like to ask if someone could tell me how much of the USRP2's FPGA resources are consumed by the firmware (the ZPU) and the FPGA (DSP operations) images. Or, in other words, how much of the resources is free. Thanks! Edu.

[Discuss-gnuradio] USRP2's FPGA resources

Hello, I would like to ask if someone could tell me how much of the USRP2's FPGA resources are consumed by the firmware (the ZPU) and the FPGA (DSP operations) images. Or, in other words, how much of the resources is free. Thanks! Edu. ___ Discuss-gnur

[Discuss-gnuradio] USRP2 - Tuning problem

Hi guys, I'm trying to sweep the 2.4 - 2.5 GHz band frequency using the USRP2. The problem is that if it takes me a long time to use time bin_statistics (through the process of usrp2 -> s2v -> fft -> c2mag -> bin_statistics) to tune to another frequencies. Because the process takes me a lot of ti

Re: [Discuss-gnuradio] USRP2 General I/O

On 06/07/2011 12:16 PM, Brenden Smith wrote: I guess there's a search function for a reason; I have found a similar question in the archives and I believe I have found a suitable answer. Sorry for the waste of time. There are no stupid questions, only stupid answers :-) There are 16 general-

Re: [Discuss-gnuradio] USRP2 General I/O

> I guess there's a search function for a reason; I have found a similar > question in the archives and I believe I have found a suitable answer. Sorry > for the waste of time. Then why dont you post the link to the answer in here? ___ Discuss-gnuradio

Re: [Discuss-gnuradio] USRP2 General I/O

I guess there's a search function for a reason; I have found a similar question in the archives and I believe I have found a suitable answer. Sorry for the waste of time. On Wed, Jul 6, 2011 at 11:09 AM, Brenden Smith wrote: > Is there a general I/O port on the USRP2? I was told there was, but th

[Discuss-gnuradio] USRP2 General I/O

Is there a general I/O port on the USRP2? I was told there was, but the only thing I can find is the 20-pin unused port on the granddaughter board. If this is a G-I/O port is it accessible from the GNU-Radio software, and which pins are available for use? I took a look at the schematics at http://

Re: [Discuss-gnuradio] USRP2 Error

Hi, Thanks for your prompt responses. Sorry, for not included it in my yesterday's mail. I used the latest binaries in both Windows and Ubuntu. The problem occur while using the latest binaries. What can I do again? On Thu, Jun 23, 2011 at 7:38 PM, Josh Blum wrote: > Sorry about my last email,

Re: [Discuss-gnuradio] USRP2 Error

On 06/23/2011 07:56 AM, Jide Julius wrote: > Hi All, > I am using 3 USRP2. The 3 FPGA and firmware were installed using the same > procedures. The installation was successful and I was able to ping the 3 > USRP2 devices. However, when I run the GNU Radio Companion, it was able to > identify only

[Discuss-gnuradio] USRP2 Error

Hi All, I am using 3 USRP2. The 3 FPGA and firmware were installed using the same procedures. The installation was successful and I was able to ping the 3 USRP2 devices. However, when I run the GNU Radio Companion, it was able to identify only one of them. The other 2 were not recognised. The warni

Re: [Discuss-gnuradio] USRP2 UART use

On 06/14/2011 07:10 AM, David Scaperoth wrote: > On Tue, Oct 19, 2010 at 9:39 PM, Josh Blum wrote: > >> >> >> On 10/19/2010 06:14 PM, b...@sigmatix.com wrote: >> >>> >>> We're exploring the possibility of monitoring the overrun/underrun >>> status via the USRP2 UART. >>> >>> >> FYI, the USRP2 u

Re: [Discuss-gnuradio] USRP2 UART use

On Tue, Oct 19, 2010 at 9:39 PM, Josh Blum wrote: > > > On 10/19/2010 06:14 PM, b...@sigmatix.com wrote: > >> >> We're exploring the possibility of monitoring the overrun/underrun >> status via the USRP2 UART. >> >> > FYI, the USRP2 under UHD reports underflows as async messages to the host > tha

Re: [Discuss-gnuradio] USRP2 firmware and FPGA code for MIMO

On 06/01/2011 09:40 PM, Fisheep wrote: > > Hi, > > I'm trying to implement 2x2 MIMO systems using four USRP2s, two of which are > connected by MIMO Cable and only one USRP2 is connected to computer through > ethernet. > Well, its implemented in uhd. No special images required. And it works s

[Discuss-gnuradio] USRP2 firmware and FPGA code for MIMO

Hi, I'm trying to implement 2x2 MIMO systems using four USRP2s, two of which are connected by MIMO Cable and only one USRP2 is connected to computer through ethernet. After I look through the related discussions and document on the website. As far as I know, the SD card for USRP2 connected to c

[Discuss-gnuradio] USRP2 slave PPS signal over the MIMO cable

I would like to run two USRP2's as master and slave, and I would like to only use a 1PPS on the master (each USRP2 would be controlled by two separate processes). When I run the test_pps_input on the slave, the program fails. However, the master is able to find the PPS just fine. I've tried a co

Re: [Discuss-gnuradio] USRP2 not Found with UHD on SD Card

http://www.ettus.com/uhd_docs/manual/html/build.html On Thu, 2011-05-19 at 19:50 -0700, hafiz zimran wrote: > Hi > I have installed UHD on SD Card. When I turn on USRP2, LED "D & F" on > ( SD card is working properly) . > Ubuntu 10.04 with GNUradio 3.2.2 has been installed on PC. > When I run the

Re: [Discuss-gnuradio] USRP2 not Found with UHD on SD Card

On 05/19/2011 07:50 PM, hafiz zimran wrote: > Hi > I have installed UHD on SD Card. When I turn on USRP2, LED "D & F" on ( SD > card is working properly) . > Ubuntu 10.04 with GNUradio 3.2.2 has been installed on PC. > When I run the command " sudo find_usrps", I got " NO USRP2 Found". > The com

[Discuss-gnuradio] USRP2 not Found with UHD on SD Card

Hi I have installed UHD on SD Card. When I turn on USRP2, LED "D & F" on ( SD card is working properly) . Ubuntu 10.04 with GNUradio 3.2.2 has been installed on PC. When I run the command " sudo find_usrps", I got " NO USRP2 Found". The command "sudo find_usrps" worked fine with my previous SD car

Re: [Discuss-gnuradio] USRP2 set_gpio_ddr

On 05/10/2011 08:46 PM, Brett L. Trotter wrote: > I did a bench experiment here and observed that set_gpio_ddr is required > on a tx card but not an rx card. Is this intended? > yup, see the constructors in host/lib/usrp/dboard/db_basic_and_lf.cpp > Here is iotest.py (Python 2.5 required for t

[Discuss-gnuradio] USRP2 set_gpio_ddr

I did a bench experiment here and observed that set_gpio_ddr is required on a tx card but not an rx card. Is this intended? Here is iotest.py (Python 2.5 required for ternary I used) #!/usr/bin/env python I2C_DEV_EEPROM = 0x50# 24LC02[45]: 7-bits 1010xxx I2C_ADDR_BOOT = (I2C_DEV_EE

Re: [Discuss-gnuradio] USRP2 on switch?

I have an N210 (UHD) hooked to a switch. It works just fine. I think the reason it is recommended to hook it directly to the computer doing the processing is that a switch will have a limit as to how much data can go through it at any time. So you probably shouldn't have 10 USRPs hooked to the same

Re: [Discuss-gnuradio] USRP2 on switch?

it seems every usrp2 must have a ethernet number and a MAC address, so I think the connecting with switch might not work...? -- Yang Sent with Sparrow On 2011年5月8日星期日 at 下午6:29, Stefan Gofferje wrote: > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA1 > > Hi, > > that MIGHT be a stupid questio

[Discuss-gnuradio] USRP2 on switch?

-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hi, that MIGHT be a stupid question, so please forgive me if it is :). Is it possible/adviseable to connect an USRP2 to the PC via a (GigaBit - of course) network switch? Or might that create problems / latencies which would unreasonably impact the f

[Discuss-gnuradio] USRP2 to toggle beween Rx And Tx mode

Hi All, How can i get a USRP2 to toggle between reception and transmission.I need to receive data , analyse it ans thereafter transmit based on the analysed data.While i have written the C++ block for this, i cannot figure out a way to toggle between Tx and Rx modes on the fly. -- Regards Lt Col

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