Re: [Discuss-gnuradio] UHD + USRP2(RFX400)

2011-02-17 Thread Pol Henarejos
Oh, I see. I was surprised of increasing the API's major version to 3, but images are in 2. Pol Henarejos Research Engineer, MSc pol.henare...@cttc.es Centre Tecnològic de Telecomunicacions de Catalunya (CTTC) Engineering Unit Parc Mediterrani de la Tecnologia Av. Carl Friedrich Gauss, 7 08860

Re: [Discuss-gnuradio] N210: detectable with uhd_probe, unusable with gnuradio-companion

2011-02-17 Thread Jeremy Cooper
On Thu, 17 Feb 2011, Josh Blum wrote: Warning: WBX: No tunable bandwidth, fixed filtered to 40MHz You probably have something in the bandwidth parameter. Use zero to not set. Change to zero. UHD source block got error code 0x1 gr_block_executor: source produced no output. We're m

Re: [Discuss-gnuradio] N210: detectable with uhd_probe, unusable with gnuradio-companion

2011-02-17 Thread Josh Blum
> Warning: > WBX: No tunable bandwidth, fixed filtered to 40MHz You probably have something in the bandwidth parameter. Use zero to not set. > UHD source block got error code 0x1 > gr_block_executor: source produced > no output. We're marking it DONE. So there was an issue with some macos

Re: [Discuss-gnuradio] daughterboard performance

2011-02-17 Thread Marcus D. Leech
> Hi > > I used XCVR2450 daughterboard for TX and RX on USRP2 and everything is > fine. > Recently I began to use RFX2400 and DBSRX-LF, which I found out the > performance are much worse than XCVR2450. > Observed from FFT plot, I found out there are some weird spectrum > response using RFX2400 and

[Discuss-gnuradio] daughterboard performance

2011-02-17 Thread Guanbo Zheng
Hi I used XCVR2450 daughterboard for TX and RX on USRP2 and everything is fine. Recently I began to use RFX2400 and DBSRX-LF, which I found out the performance are much worse than XCVR2450. Observed from FFT plot, I found out there are some weird spectrum response using RFX2400 and DBSRX-LF respec

[Discuss-gnuradio] N210: detectable with uhd_probe, unusable with gnuradio-companion

2011-02-17 Thread Jeremy Cooper
Hi everyone. I'm continuing my quest to try out my new USRP N210 and WBX transceiver board. I still haven't managed to make it do anything useful yet. I have it attached directly to a Mac OS X 10.6 system, via the built-in gigabit ethernet interface. I updated N210 to the latest firmware a

Re: [Discuss-gnuradio] N210 connects but unreachable, only orange light ON

2011-02-17 Thread Jason Abele
> But now we see a solid orange light ON with no blinking and the green light > is OFF. The ping requests are not being returned but the N210 stays > connected to the PC. Is there anyway to reset the device? My colleague is > not able to remember if he could have possibly burnt some incompatible/wr

[Discuss-gnuradio] N210 connects but unreachable, only orange light ON

2011-02-17 Thread Sivaramakrishnan B C
Hi, The N210 we had was returning ping requests after we managed to burn the latest firmware and fpga images on to it from http://www.ettus.com/downloads/uhd_images/UHD-images-most-recent/. At that point the green light on the ethernet port on the N210 was ON and the orange light was blinking. Bu

Re: [Discuss-gnuradio] How to load firmware and fpga image for N210

2011-02-17 Thread Josh Blum
On 02/17/2011 03:58 PM, MIN SOO KANG wrote: > Hi, > > I'm trying to load the firmware and fpga image onto N210. > > I downloaded the latest image file from > http://www.ettus.com/downloads/uhd_images/UHD-images-most-recent/. > > And, I'm right now using usrp_n2xx_fw.bin for firmware and usrp_

[Discuss-gnuradio] unable to coerce endpoint

2011-02-17 Thread Yan Nie
Dear all, I'm trying to feed the received signal from USRP to a low-pass filter and sink the filtered signal into a data file. The received signal is in complex format. The receiver is built as: u = usrp.source_c(0) coeffs = gr.firdes.low_pass(1.0, 500e3, 20e3,.5e3,gr.firdes.WIN_HAMMING) lpf =

[Discuss-gnuradio] How to load firmware and fpga image for N210

2011-02-17 Thread MIN SOO KANG
Hi, I'm trying to load the firmware and fpga image onto N210. I downloaded the latest image file from http://www.ettus.com/downloads/uhd_images/UHD-images-most-recent/. And, I'm right now using usrp_n2xx_fw.bin for firmware and usrp_n210_fpga.bin for fpga image. Even though I successfully loa

Re: [Discuss-gnuradio] A couple of questions related to UHD

2011-02-17 Thread Josh Blum
On 02/17/2011 01:57 PM, Feng Andrew Ge wrote: > I posted one question in an early email, but it might be better to put > it together with other questions here. I'd greatly appreciate your answers. > > (1) When transmitting UHD packets (with USRP2 + WBX), after each > transmission, there is eith

Re: [Discuss-gnuradio] problem with installation of howto

2011-02-17 Thread Tom Rondeau
Sorry for the delayed response to this, but I just tested out the howto write a block code and had the same problem. I "fixed" the code, but according to Eric's logs from December when he made these changes, I'm not sure what's happening is what is supposed to be happening after they did some work

[Discuss-gnuradio] A couple of questions related to UHD

2011-02-17 Thread Feng Andrew Ge
I posted one question in an early email, but it might be better to put it together with other questions here. I'd greatly appreciate your answers. (1) When transmitting UHD packets (with USRP2 + WBX), after each transmission, there is either one or a few "U" printed out. What does "U" mean?

Re: [Discuss-gnuradio] E100 frustrated newbie questions.

2011-02-17 Thread Josh Blum
> I have figured out how to change the GRC generated python files to not > refer to the wx libraries, only takes a couple of lines to be edited. > The result is that I can now create flowgraphs in grc on my development > vm, copy the python file to the USRP E100, edit the couple of lines and > my

Re: Re[Discuss-gnuradio] g:Books on GNU RADIO AND USRP IMPLEMENTATION

2011-02-17 Thread Michael Ossmann
On Thu, Feb 17, 2011 at 05:05:09AM -0800, sumitstop wrote: > > Are there any books available where i can find detailed text and > illustrations of GNU RADIO as well as practical USRP implementation > examples. This book doesn't cover GNU Radio or the USRP, but I'm a big fan of it anyway: Telecomm

Re: [Discuss-gnuradio] UHD + USRP2(RFX400)

2011-02-17 Thread Josh Blum
Images have not changed, its just update + rebuild libuhd. -josh On 02/16/2011 11:57 PM, Pol Henarejos wrote: > When you can, could you upload the fw/fpga images? > > Thank you. > > > Pol Henarejos > Research Engineer, MSc > pol.henare...@cttc.es > > Centre Tecnològic de Telecomunicacions de C

Re: [Discuss-gnuradio] Re: GNU Radio developer's call

2011-02-17 Thread Tom Rondeau
On Thu, Feb 17, 2011 at 12:04 PM, Scott Johnston wrote: > Could you post meeting minutes or a summary of some kind? I am very > interested in any new features in 3.4, and I am sure most others on this > list are as well. > > Thanks > > Scott Yes. One of the reasons for tying the call to the IRC

Re: [Discuss-gnuradio] Re: GNU Radio developer's call

2011-02-17 Thread Scott Johnston
Could you post meeting minutes or a summary of some kind? I am very interested in any new features in 3.4, and I am sure most others on this list are as well. Thanks Scott Tom Rondeau wrote: Here is the information regarding tomorrow's developers call. After playing around with the system a

Re: Re[Discuss-gnuradio] g:Books on GNU RADIO AND USRP IMPLEMENTATION

2011-02-17 Thread sumitstop
Hi Michael, The book which you mentioned was never published actually.The person concerned to McGrawHill Australia itself told this fact.I also searched and found that book very first time and was amazed to see the contents.. but bad luck :-( mrahaim wrote: > > > I attempted to find a good book

[Discuss-gnuradio] ssb demodulation

2011-02-17 Thread ranjini ram
hi can anybody help me out in doing ssb demodulation using weaver method with a sampling rate of 256k? thank u in advance ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio

[Discuss-gnuradio] Re: GNU Radio developer's call

2011-02-17 Thread Tom Rondeau
Here is the information regarding tomorrow's developers call. After playing around with the system a bit, I would like to stress that anyone who will be joining us to please use a proper headset. If you are planning on using your computer speakers, please don't! This tends to add a very annoying e

Re: Re[Discuss-gnuradio] g:Books on GNU RADIO AND USRP IMPLEMENTATION

2011-02-17 Thread sumitstop
Thanks Tom.I got both the books in the nearby library.I hope something relevant i will find there. :-) Tom Rondeau wrote: > > On Thu, Feb 17, 2011 at 8:05 AM, sumitstop > wrote: >> >> Hi, >> Are there any books available where i can find detailed text and >> illustrations of GNU RADIO as well a

[Discuss-gnuradio] Rule for generating python code in GRC

2011-02-17 Thread fangming he
Any people know the implementation of the generating python code in GRC? What is the rule for generating python code from GRC file? Any body can provide the detail document for me in explaining the implementation detail in this code generation function? Thanks a lot!

Re: [Discuss-gnuradio] Problem:Discontinuous Transmission of random packets exhibiting a two state markov model (using benchmark_tx.py example)

2011-02-17 Thread Tom Rondeau
On Mon, Feb 14, 2011 at 3:09 AM, Venkat Vinod wrote: > > Hello All, > >     I'm trying for discontinuous transmission of random packets to > exhibit two state markov model(ON and  OFF cycles).The states for  markov > model are generated by predefined transition matrix. I utilized the > ben

Re: Re[Discuss-gnuradio] g:Books on GNU RADIO AND USRP IMPLEMENTATION

2011-02-17 Thread mrahaim
I attempted to find a good book on GNURadio when I first started working with it and I came across a book called "Software Defined Radio with GNURadio and USRP" by Cory Clark. The bad news is I haven't found any place where I could purchase it (Seems to be out of print?). I'm curious if any

Re: Re[Discuss-gnuradio] g:Books on GNU RADIO AND USRP IMPLEMENTATION

2011-02-17 Thread Tom Rondeau
On Thu, Feb 17, 2011 at 8:05 AM, sumitstop wrote: > > Hi, > Are there any books available where i can find detailed text and > illustrations of GNU RADIO as well as practical USRP implementation > examples. > Sumit No, Sumit, I'm afraid there isn't a good source right now. The only two that have

[Discuss-gnuradio] Re: details on changing singleusrp buffer allocations

2011-02-17 Thread Feng Andrew Ge
Josh, Thanks very much. When I use UHD transmitting packets, after each packet, there is a "U" printed out. Would you tell me what "U" means? In early GNU Radio versions, "U" means CPU underrun--GNU Radio not sending data fast enough to a sink, either a USRP or an audio. But UHD uses UDP p

Re[Discuss-gnuradio] g:Books on GNU RADIO AND USRP IMPLEMENTATION

2011-02-17 Thread sumitstop
Hi, Are there any books available where i can find detailed text and illustrations of GNU RADIO as well as practical USRP implementation examples. Sumit -- View this message in context: http://old.nabble.com/Reg%3ABooks-on-GNU-RADIO-AND-USRP-IMPLEMENTATION-tp30949449p30949449.html Sent from the

[Discuss-gnuradio] Question UHD, WINDOWS

2011-02-17 Thread Florian Eugen
Hi mr. Josh,    thank you very much for answering to my questions. It's good to know that somebody started to think to those people who are using Windows OS. I want you to know that I'm used to other types of development like microcontrollers, FPGA's, different communications RS232, RS485, SPI

Re: [Discuss-gnuradio] UHD + USRP2(RFX400)

2011-02-17 Thread Pol Henarejos
When you can, could you upload the fw/fpga images? Thank you. Pol Henarejos Research Engineer, MSc pol.henare...@cttc.es Centre Tecnològic de Telecomunicacions de Catalunya (CTTC) Engineering Unit Parc Mediterrani de la Tecnologia Av. Carl Friedrich Gauss, 7 08860 Castelldefels Tel: +34 93 396