Re: [Discuss-gnuradio] question about bandwith B210 - USB3

Hello, What are the specifications of your host computer (processor, RAM, SSD or hard drive, etc)? What type of USB controller are you using? -Trip On Thu, Jun 30, 2016 at 6:48 PM, Przemek Lewandowski wrote: > Hello > > I need to generate as wide bandwith as possible.

Re: [Discuss-gnuradio] Pybomb installation error

Hi Shahnaz, Could you run the install step again but with the verbose flag (-v)? $ pybombs [-p myprefix] install gnuradio gr-osmosdr -v It might produce more helpful debugging information. Can you post the relevant output here when it hits the error? -Trip On Wed, Apr 20, 2016 at 9:12 PM,

Re: [Discuss-gnuradio] Pybomb installation error

Hi Jason, I replied to the other thread as well, but could you also do this to see if its the same error? Could you run the install step again but with the verbose flag (-v)? $ pybombs [-p myprefix] install gnuradio gr-osmosdr -v It might produce more helpful debugging information. Can you

Re: [Discuss-gnuradio] Handling of IQ files

Hi Henry, There is a script, read_complex_binary.m, that is included with gnuradio. You can use that with Octave or Matlab to read the I/Q recordings from a file as a time vector. -Trip On Sat, Mar 19, 2016 at 12:43 PM, Henry Barton wrote: > Is there any simple formula for

Re: [Discuss-gnuradio] Pybombs2 github repository

Hi Varun, PyBOMBS2 is now just PyBOMBS: https://github.com/gnuradio/pybombs/issues pybombs1 is now listed at pybombs_legacy. -Trip On Mon, Mar 7, 2016 at 2:03 PM, Varun Kumar wrote: > Hi, > I've been using GNURadio for past 1 year, and I decided to look into >

Re: [Discuss-gnuradio] Issue_stream_cmd, Segmentation Fault

Hi Zhihong, 4ae7a6015ba719a4720f61cc6f3857de2ebda89f is the commit hash that refers to a specific commit on the GNU Radio repository. If you built GNU Radio recently (I believe this commit was last August), then you should be OK. -Trip On Wed, Feb 10, 2016 at 6:42 PM, Zhihong Luo

Re: [Discuss-gnuradio] power amplifiers on TX

Hi Daniel, The output power of the USRP is controlled by the TX gain setting. Keep in mind that the output power of the USRP is not calibrated and will vary from device to device. Some may have higher output power than others. Isolation between the transmit and receive sections of the USRP is a

Re: [Discuss-gnuradio] uhd_sink samp rate(sps)

Hi Ekko, The sample rate has to be some fraction of the clock rate divided by an integer. The clock rate on the E310 defaults to 32MHz I believe, so 32MHz divided by 4 gives you 8 Msps. The system will get you as close as it can to the desired sample rate. You can set the clock rate to something

Re: [Discuss-gnuradio] running error

Hi Kerry, Did you hook your computer back up to the internet before you ran uhd_images_downloader.py? -Trip On Mon, Nov 30, 2015 at 3:22 PM, kerry wrote: > Hi,all: > > I try to run an example about gnu radio. The runtime errors are captured > as: > > Using Volk machine:

Re: [Discuss-gnuradio] USRP Complex Demodulation

eceiver performs some low pass filtering which > removes the lower-side-band or something similar. > > Can anyone confirm that the USRP expects single-side-band signals so I can > put this issue to rest? > > Thanks in advance, > Roee > > > > > > On 13 Nov 2015

Re: [Discuss-gnuradio] USRP Complex Demodulation

the USRP transmitter with a real only signal s(t)=cos(w0*t), why > does the received signal has an imaginary component (i.e. Q(t) is not zero)? > > Thanks again, > Roee > > > On 16 Nov 2015, at 14:34, James Humphries <james.humphr...@ettus.com> > wrote: > > Hi Roee,

Re: [Discuss-gnuradio] Connecting two USRP B200 radios

ep in my settings?? > > ash > > On Fri, Nov 6, 2015 at 10:57 AM, James Humphries < > james.humphr...@ettus.com> wrote: > >> Hi Ash, >> >> Yes, you need to use an attenuator if you are connecting the B200's >> directly together with a cable. I would r

Re: [Discuss-gnuradio] Connecting two USRP B200 radios

Hi Ash, Yes, you need to use an attenuator if you are connecting the B200's directly together with a cable. I would recommend at least 30dB of attenuation, but that depends on your settings. It is recommended that you do not input more that -15 dBm into the receiver of the B200, as this can

Re: [Discuss-gnuradio] How to use an external PPS reference in B200?

Hi Julio, You need to instruct the USRP which reference to use. See this page in the UHD manual: http://files.ettus.com/manual/page_sync.html Are you using a GNU Radio flowgraph? Or are you writing code directly using the GNU Radio python API or UHD C++ API? -Trip On Mon, Oct 19, 2015 at 1:12

Re: [Discuss-gnuradio] GNU Radio installation script

t; I ran the update/upgrade and reran the script and now things are > "different" > > > > This seems like it may take a while. I'll report back when it's done. > > > > Hmm.. so far one error - it couldn't find libzmq1-dev; I don't know > > what that'll mean

Re: [Discuss-gnuradio] GNU Radio installation script

Hi Mike, Did you update your package manager? Usually helps when I get errors. sudo apt-get update && sudo apt-get upgrade Also, make sure build-essential is installed (Do this after update and upgrade). sudo apt-get install build-essential -Trip On Mon, Sep 21, 2015 at 11:13 PM, Mike Gilmer

Re: [Discuss-gnuradio] Reporting experience of installation from source of GnuRadio-3.7.8

Hi Daniele / Marcus, I'll add my experience as well. I have been testing installs of Ubuntu 15.04 in a VMware virtual machine. I limit it to 2GB of RAM. I was using pybombs to install UHD + GNURadio. Install would halt at a certain point (no error) every time. Solution was to limit make to 2