Re: [Discuss-gnuradio] A new SDR on Kickstarter
Hi Andrew, It will be cool to get one of those boards, I see a lot of potential with the combination of Zedboard and Myriad RF, it can be a comple SDR platform. I would like to know more about the board and when it will be available, Cheers, Farhad Such an adapter board is in development and if you check the Myriad-RF website around September there should be an announcement. But, I may change my mind and purchase one just for comparison. I think both have their own particular strengths and I imagine you'd be far from the only person with one (or more) of each. Cheers, Andrew Disclosure: I recently joined the Myriad-RF project as community manager. -- Andrew Back http://carrierdetect.com ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] A new SDR on Kickstarter
Hi Guys, Just saw this project on Kickstarter. http://www.kickstarter.com/projects/mossmann/hackrf-an-open-source-sdr-platform It is an interesting low cost SDR with 20MHz bandwidth. It seems like SDR is becoming more popular every day and the number of low cost SDR devices are on the rise. I am thinking about backing it up, but I am not sure of 20MHz is enough for the applications I have in mind. What do you think? BR, Farhad ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] A new SDR on Kickstarter
Hi Michael, You did a great job, my application is pure signal processing and signal analysis. I don't know if I could go for 8bits and 20MHz, I am seriously thinking about making a small adapter board for the MyriadRF and connect it to my Zedboard (http://myriadrf.org/) It is going to be more expensive, but it is more suitable for my need. But, I may change my mind and purchase one just for comparison. Cheers, Farhad On Wed, Jul 31, 2013 at 11:36 PM, Michael Ossmann m...@ossmann.com wrote: Thanks, Farhad. I designed HackRF for 20 MHz with 8 bit quadrature samples because it is at the maximum rate that can be transferred over USB 2.0 (Hi-Speed). It's enough bandwidth for most SDR applications I've seen. What applications do you have in mind? On Wed, Jul 31, 2013 at 10:32:07PM +0200, Farhad Abdolian wrote: Hi Guys, Just saw this project on Kickstarter. http://www.kickstarter.com/projects/mossmann/hackrf-an-open-source-sdr-platform It is an interesting low cost SDR with 20MHz bandwidth. It seems like SDR is becoming more popular every day and the number of low cost SDR devices are on the rise. I am thinking about backing it up, but I am not sure of 20MHz is enough for the applications I have in mind. What do you think? BR, Farhad ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio -- ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Fwd: Can open BTS run on RasPi?
Hi, I just watched a video on this link: http://www.youtube.com/watch?v=GCcKgrzbix4#at=42 They say they have ported OpenBTS and GR to RasPi and they could make phone calls between 2 mobile phones. Is that even possible? Is RasPi strong enough for handling that kind of data? I am very curious to hear your comments on this, BR, Farhad ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Fwd: Can open BTS run on RasPi?
HI Andrew, Thanks, I will ask the question on OpenBTS, I thought that OpenBTS was a layer on top of the GR, thanks for correcting me. BR, Farhad On Mon, Jul 29, 2013 at 2:24 PM, Andrew Back and...@carrierdetect.comwrote: Hi Farhad, On 29 July 2013 13:04, Farhad Abdolian fabdol...@seemaconsulting.com wrote: Hi, I just watched a video on this link: http://www.youtube.com/watch?v=GCcKgrzbix4#at=42 They say they have ported OpenBTS and GR to RasPi and they could make phone calls between 2 mobile phones. Is that even possible? I don't see why they would lie. Is RasPi strong enough for handling that kind of data? It would seem that it is possible to make something work, but as far as I'm aware it's not practical/useful, unless perhaps there were OpenCL support for RasPi and you could rewrite parts of OpenBTS to make use of the GPU. In any case, the host is just a small part of the hardware costs and it would be better to run OpenBTS on something more capable. I am very curious to hear your comments on this, You are aware that OpenBTS and GNU Radio are different codebases? I'd suggest posting questions such as this to the OpenBTS discuss list: http://sourceforge.net/p/openbts/mailman/ Cheers, Andrew -- Andrew Back http://carrierdetect.com -- ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] First try with RTL2832
Hi folks, Yesterday after a long wait I received my DVB-T unit in the mail (it arrived on my birthday). After some initial work, I got it to work with GNU Radio and GRC and today I made my first working FM receiver using the same blocks as the video from Ettus Research (building GR FM Radio in 10 minutes). The design is using the Linux driver and the GR blocks made by Balint Seeber (thanks a million mate). I have attached the GRC with this e-mail, hope you find it useful. I am now going to work on the RTL2832 block to fine tune it (I have the complete datasheet) and add more feature to it. The problem I have is that the signals are not very strong, no matter how much I change the gain, the signal level is pretty low and the received audio is pretty noisy. I have managed to sample at 2Msps without any problems but when I sample more than that on my laptop, I get a lot of overflow. I keep you posted on my progress, this is really exciting :) Best regards, Farhad From: Josh Blum j...@joshknows.com To: Johnathan Corgan jcor...@corganenterprises.com Cc: Discuss-gnuradio@gnu.org Discuss-gnuradio@gnu.org Sent: Sunday, April 15, 2012 9:08 AM Subject: Re: [Discuss-gnuradio] More dumpeths On 04/14/2012 01:38 PM, Johnathan Corgan wrote: On Sat, Apr 14, 2012 at 13:30, Marcus D. Leech mle...@ripnet.com wrote: Please try commit c787fb66, which is the merge on the former 'next' branch of a PMT library modification (this is one of the ones that failed in trellis for you, hopefully you can make it work.) This commit fails. But I had to roll-back to an older version of UHD to get it to build. Still failed though. If this last fails, please try branch 'test/undo-pmt-deleter', which I've pushed to the main gnuradio repository. That works. No segfaults on exit. Excellent, thanks. As this is in the 3.5.3 release, I'm going to rebase this 'fix' off the last 3.5.3 maint, but hold off merging it. I'm hoping Josh can supply an actual fix soon so we don't have to take that functionality out altogether. Maybe its deleting itself: http://pastebin.com/XMSxLJk5 -Josh ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio fm_rx_rtl2832.grc Description: Binary data ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] First try with RTL2832
HI, I am sorry but the datasheet I have is specifically made for my company after we signed the NDA with them and I can't share it with anyone outside the company. You can ask the company for the info and I am sure you will be able get one from them. Best regards, Farhad From: Zhigang ZHOU (SIMIT, CAS) zhigang.z...@mail.sim.ac.cn To: Farhad Abdolian f.abdol...@yahoo.com; Discuss-gnuradio@gnu.org Discuss-gnuradio@gnu.org Sent: Sunday, April 15, 2012 12:46 PM Subject: Re: [Discuss-gnuradio] First try with RTL2832 Could you email us the RTL2832 data sheet for reference. I think many people in this list is seeking this data sheet, thanks a lot! Zhigang ZHOU (SIMIT, CAS) From: Farhad Abdolian Date: 2012-04-15 16:50 To: Discuss-gnuradio@gnu.org Subject: [Discuss-gnuradio] First try with RTL2832 Hi folks, Yesterday after a long wait I received my DVB-T unit in the mail (it arrived on my birthday). After some initial work, I got it to work with GNU Radio and GRC and today I made my first working FM receiver using the same blocks as the video from Ettus Research (building GR FM Radio in 10 minutes). The design is using the Linux driver and the GR blocks made by Balint Seeber (thanks a million mate). I have attached the GRC with this e-mail, hope you find it useful. I am now going to work on the RTL2832 block to fine tune it (I have the complete datasheet) and add more feature to it. The problem I have is that the signals are not very strong, no matter how much I change the gain, the signal level is pretty low and the received audio is pretty noisy. I have managed to sample at 2Msps without any problems but when I sample more than that on my laptop, I get a lot of overflow. I keep you posted on my progress, this is really exciting :) Best regards, Farhad From: Josh Blum j...@joshknows.com To: Johnathan Corgan jcor...@corganenterprises.com Cc: Discuss-gnuradio@gnu.org Discuss-gnuradio@gnu.org Sent: Sunday, April 15, 2012 9:08 AM Subject: Re: [Discuss-gnuradio] More dumpeths On 04/14/2012 01:38 PM, Johnathan Corgan wrote: On Sat, Apr 14, 2012 at 13:30, Marcus D. Leech mle...@ripnet.com wrote: Please try commit c787fb66, which is the merge on the former 'next' branch of a PMT library modification (this is one of the ones that failed in trellis for you, hopefully you can make it work.) This commit fails. But I had to roll-back to an older version of UHD to get it to build. Still failed though. If this last fails, please try branch 'test/undo-pmt-deleter', which I've pushed to the main gnuradio repository. That works. No segfaults on exit. Excellent, thanks. As this is in the 3.5.3 release, I'm going to rebase this 'fix' off the last 3.5.3 maint, but hold off merging it. I'm hoping Josh can supply an actual fix soon so we don't have to take that functionality out altogether. Maybe its deleting itself: http://pastebin.com/XMSxLJk5 -Josh ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] First try with RTL2832
Hi Alex, Thanks for the videos, I had seen some of them before, I am not sure we are using the same modules, the one i am using a much smaller one like the image I have attached. I am 'playing' with the different parameters today and hopefully I can get some good results from it. My signals are really weak (about -90db with strong FM channel). BR, Farhad From: Alexandru Csete oz9...@gmail.com To: Discuss-gnuradio@gnu.org Discuss-gnuradio@gnu.org Sent: Sunday, April 15, 2012 12:10 PM Subject: Re: [Discuss-gnuradio] First try with RTL2832 Hi Farhad, As you may have seen in my on air tests I just posted, I have no problem with low signal levels, however, there is an active hardware AGC which may be causing you troubles. If you have a strong signal in the analog passband of the tuner it will drive the gain down and the weaker signal you are trying to receive will become noisy. You can see that in all 3 videos which show an EzCAP666 with E4000 tuner in action. I don't know if this AGC is in the RTL chip or the E4000 tuner. I suspect it is in the tuner. Alex ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Problem with GRC
HI Marcus, Found the problem, had some issues with the installation, so I used the script from http://www.sbrac.org/files/build-gnuradio that removed the old installation and installed a clean GR. Now everything seems to work properly. Thanks a lot everyone, BR, Farhad From: Marcus D. Leech mle...@ripnet.com To: discuss-gnuradio@gnu.org Sent: Tuesday, March 20, 2012 3:02 PM Subject: Re: [Discuss-gnuradio] Problem with GRC On 03/20/2012 09:56 AM, Farhad Abdolian wrote: Hi guys, After a long interruption I have started to use GR again and had to install a fresh copy on my laptop. Everything seems to be working, the installation went well and all the tests seems to be OK, except when I try to run GRC. The GRC starts without problem and I can run the dial_tone.grc without any problem, but none of the other examples seems to work. For example, when I load the cvsd_sweep.grc file (under the same directory as the previous one), then I can neither generate nor execute the example. I have attached the screen capture of my GRC. I am using Ubuntu 10.04 LTS and GR 3.5.1 installed from GIT. Really appreciate your help to give me a hint of what can be the source of the problem? Best regards, Farhad ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio You have display items at the same grid positions. GRC cares about that now. -- Marcus Leech Principal Investigator Shirleys Bay Radio Astronomy Consortium http://www.sbrac.org ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Split-function implementation of 802.11g OFDM PHY and MAC on USRP2
Hi Folks, I find this discussion interesting and would like to ask a few questions. I FIND THAT THE TWO FPGA IMAGES ARE DIFFERENT. What do you mean by different? Do they behave different? Or you used a program to compare the binary data comparison between the 2 and this is what you are saying here? Xilinx PR tool as well as it's resource optimizer and mapper use special algorithm that creates a random path of data for each run, unless you hard code your blocks and force the MAP and PR not to touch the blocks, the result of the 2 identical compilation will be different. If there are any clocks in the whole design that is not included in the UCF file, then the MAP will try to find the best placement for it which in almost 99% of the cases when you start a new compile, is different than the one created earlier. Xilinx supports partial re-configuration on some it's devices as it is described here: http://www.xilinx.com/tools/partial-reconfiguration.htm and that can help those who want to make sure that the differences between different version of the code/compiles are minimum, but this is not supported only by the Virtex family of devices and not the Spartan series. Just my 2c! BR, Farhad HOWEVER, when testing this, by building the same fpga image which is downloaded to usr/local/share/uhd/images/ by the Marcus's build-gnuradio-script, I FIND THAT THE TWO FPGA IMAGES ARE DIFFERENT. WHAT CAN BE THE REASONS THAT TWO FPGA IMAGES ARE DIFFERENT IF ONE IS USING THE SAME MAKEFILE? Output for md5sum: -- root@radio-laptop:/usr/local/share/uhd/images# md5sum usrp2_fpga.bin 4d47274d3255e5bbca6e68e8f0ee7c74 usrp2_fpga.bin root@radio-laptop:/home/nemanja/bin/uhd/fpga/usrp2/top/USRP2/build# md5sum u2_rev3.bin d31cdcc7a1fecb3bc33bc7fbc4db2707 u2_rev3.bin -- ANYONE WITH SUGGESTIONS, PLEASE REPLY! -Nemanja Trecakov ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] GRC error: ImportError: cannot import name wxgui
HI, I have installed GR on a Compaq 6715b laptop and everything seems to work except the GRC. When I try to run a simple test example I get the above error. I have tried to search the internet for it, but I can not find any reference to it. Does anyone know what is missing? Thanks in advance for your help, Best regards, Farhad ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] GRC error: ImportError: cannot import name wxgui
HI Marcus, Sorry, I should have been more clear: - Ubuntu 10.10 - Install from GIT - Clean installation and no older packages. New Ubuntu, latest update and then Gnu Radio installed I then choose this alternative to install: $ mkdir build $ cd build $ ../configure $ make $ sudo make install My PYTHONPATH is not configured, I missed it! I have to correct that. Thanks for pointing it out. Best regards, Farhad From: Marcus D. Leech mle...@ripnet.com To: discuss-gnuradio@gnu.org Sent: Mon, March 28, 2011 10:34:09 PM Subject: Re: [Discuss-gnuradio] GRC error: ImportError: cannot import name wxgui On 28/03/2011 4:23 PM, Farhad Abdolian wrote: HI, I have installed GR on a Compaq 6715b laptop and everything seems to work except the GRC. When I try to run a simple test example I get the above error. I have tried to search the internet for it, but I can not find any reference to it. Does anyone know what is missing? Thanks in advance for your help, Best regards, Farhad Is your PYTHONPATH configured correctly? What platform are you running on? Fedora? Ubuntu? Windows? Which version of the OS? Did you install from GIT, or from a recent tarball? Did you previously install from the distributions (ancient at this point) pre-packaged Gnu Radio packages? Did you follow the instructions in the Build Guide, here? http://gnuradio.org/redmine/wiki/gnuradio/BuildGuide___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Gnu Radio and Andoid?
Hi I wonder if anyone used Gnu Radio on an Android based netbook? I have a Toshiba AC100 and wonder if it can run GR? http://www.engadget.com/2010/06/21/toshibas-ac100-8-hour-smartbook-runs-android-2-1-on-a-1ghz-tegr/ I know it is not fast enough, 1Ghz processor is not enough for any advanced processing, but it will be great to be able to install it and use it to run development of sub-modules while I am trveling. Thanks in advance, Farhad ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] TETRA ?
HI, I wonder if anyone here is working on TETRA? I would like to hear about your experience with GR and TETRA implementation and if you have had any problems designing it. Thanks in advance, Farhad ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] TETRA ?
Hi Michael, I know this very well, I just wondered if anyone has used it together with USRP and GRC, Thanks, Farhad From: Michael Ossmann m...@ossmann.com To: Farhad Abdolian f.abdol...@yahoo.com Cc: discuss-gnuradio@gnu.org Sent: Thu, January 27, 2011 4:03:04 PM Subject: Re: [Discuss-gnuradio] TETRA ? On Thu, Jan 27, 2011 at 02:34:19AM -0800, Farhad Abdolian wrote: I wonder if anyone here is working on TETRA? http://laforge.gnumonks.org/weblog/2011/01/22/ ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Greeting and a question
HI Tom, I am afraid not, first of all OMAP is under export restriction from the US government that means it can not be sold (or should not be sold) without US export control. Second, this board is a nice toy, but I can not justify $1300 for the functionality that E100 gives. Best regards, Farhad From: Tom Rondeau trondeau1...@gmail.com To: Farhad Abdolian f.abdol...@yahoo.com Cc: discuss-gnuradio@gnu.org Sent: Mon, January 17, 2011 6:27:40 PM Subject: Re: [Discuss-gnuradio] Greeting and a question That sounds like a reasonable approach. When you're ready, you should probably look at the Ettus USRP-E100, which uses an ARM-based OMAP processor. That seems like it's pretty much the form-factor you are looking for. Tom ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
Re: [Discuss-gnuradio] Greeting and a question
Hi Tom, I am giving up on that idea, as much as I love my old boards, it seems like porting the Gnu Radio to that processor it is not worth much at this stage since the processor is too slow for any serious processing compare to modern Cortex A8 based processors. I think I have to learn to walk before I start a marathon :) so for now I am learning the basics of GR and use the audio card as the data source together with a small board I 'breadboard':ed for this. Maybe my next step will be to use the Friendly ARM board with the GR, but I am not sure, I am still hopping on one foot! Best regards, /Farhad From: Tom Rondeau trondeau1...@gmail.com To: Farhad Abdolian f.abdol...@yahoo.com Cc: discuss-gnuradio@gnu.org Sent: Mon, January 17, 2011 5:53:09 PM Subject: Re: [Discuss-gnuradio] Greeting and a question Hi Farhad, I have not heard of anyone using the Avnemt Memec board for GNU Radio. What are your plans with it? From a quick read about the product, I was wondering if you were thinking of trying to get GNU Radio to run on the internal PowerPC or to make the Memec board a peripheral front end and pass samples back to a host computer. I didn't look closely enough at the board to know what it's external interfaces might be (USB, Ethernet, PCI, etc.). I didn't see what kind of PowerPC they are using, so you'd have to ask yourself if it is powerful enough to do what you want onboard or if you want to offload it to a more capable processor. Let us know if you're making any progress on it. Tom On Wed, Dec 29, 2010 at 5:27 PM, Farhad Abdolian f.abdol...@yahoo.com wrote: Hi everyone, I am a newcomer on this list and would like to first introduce myself. I am a HW design engineer with over 20 years of experience in designing various electronic and systems including a working base station based on SW radio in 1999 with a team of engineers at Ericsson Radio Access in Sweden, a system that managed to support multiple mobiles systems including NMT, GSM, AMPS, DAMPS and DECT using a number of FPGAs and DSPs. My specialty is FPGA design and I would like to move some of the GNU radio blocks into an FPGA to make it possible to run the SW part on a low end processor such as ARM9 or similar. After many years, I came back to into the field of working on a RBS design and found the wonderful project called Gnu Radio :) Now, my questions, I wonder if anyone here has ever looked into using some old FPGA boards such Avnemt Memec Virtex-II pro board with P160 analog interface board together with Gnu Radio? The reason I am asking this is that I have a few of these boards from previous project and I believe they could be great HW for a quick start of the GR design with minimum amount of investment. Thanks in advance and best regards, Farhad Abdolian Antibes, France ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Greeting and a question
Hi everyone, I am a newcomer on this list and would like to first introduce myself. I am a HW design engineer with over 20 years of experience in designing various electronic and systems including a working base station based on SW radio in 1999 with a team of engineers at Ericsson Radio Access in Sweden, a system that managed to support multiple mobiles systems including NMT, GSM, AMPS, DAMPS and DECT using a number of FPGAs and DSPs. My specialty is FPGA design and I would like to move some of the GNU radio blocks into an FPGA to make it possible to run the SW part on a low end processor such as ARM9 or similar. After many years, I came back to into the field of working on a RBS design and found the wonderful project called Gnu Radio :) Now, my questions, I wonder if anyone here has ever looked into using some old FPGA boards such Avnemt Memec Virtex-II pro board with P160 analog interface board together with Gnu Radio? The reason I am asking this is that I have a few of these boards from previous project and I believe they could be great HW for a quick start of the GR design with minimum amount of investment. Thanks in advance and best regards, Farhad Abdolian Antibes, France ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
